Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.


Pledging intellectual property for COVID-19

Voluntary pledges to make intellectual property broadly available to address urgent public health crises can overcome administrative and legal hurdles faced by more elaborate legal arrangements such as patent pools and achieve greater acceptance than governmental compulsory licensing.

Intellectual property rights (IPR) — patents, copyrights and similar forms of legal protection — relate to virtually every aspect of the COVID-19 response, from vaccines, diagnostics and therapeutics to medical equipment, tracking systems, software apps and other innovations1,2. Traditionally, IPR offers the developers of new technologies the exclusive right to exploit their innovations while recouping R&D and other expenditures. But IPR also gives its owners the ability to stop others from conducting research, as well as manufacturing and distributing products.

During the COVID-19 coronavirus pandemic, we and others have observed instances in which IPR restrictions, and even fear and uncertainty around IPR, have hindered effective research on vaccines and therapies, as well as the development, manufacturing and distribution of ventilators, testing kits, protective equipment and other medical supplies (referred to as “crisis-critical products”1).

COVID-19 differs from other recent public health crises — cancer, HIV/AIDS, Ebola virus disease, malaria, malnutrition — with respect to its sudden onset, its rapid spread, the lack of any known vaccine or cure, and resulting shortages of critical medical equipment. The convergence of these factors has prompted both governments and IPR holders around the world to seek ways to increase the availability of IPR necessary to combat the pandemic. Governmental compulsory licensing, IPR pools and voluntary IPR pledges have all been used in the past, though in situations that differ in important respects from the COVID-19 pandemic. Each is designed to result, to a greater or lesser degree, in a publicly accessible ‘commons’ of rights and technologies that are broadly available for use to support an important public health goal3. Here, we compare and contrast these differing approaches to IPR commons formation and assess their suitability to address the COVID-19 crisis.

Voluntary pledges

A growing number of organizations have publicly committed to make their IPR freely available in the fight against COVID-19. These IPR ‘pledges’ take various forms and have different labels, but share a common lineage that extends back to commitments made for decades by technology firms to support the use of interoperability standards, open software and emerging technology platforms4,5. As such, these pledges and the licenses that are associated with them are irrevocable once granted and legally enforceable under precedents that have been recognized in jurisdictions around the world4.

There are several varieties of IPR pledges4,6,7 (Table 1). Some cover different types of IPR (patents, copyrights, designs and so forth) and can impose different restrictions and limitations (for example, duration or field of use). IPR pledges can be made unilaterally by a single organization (for example, Medtronic, AbbVie) or through coordinated efforts of organizations that commit to the same basic terms (for example, Wellcome Trust Publishers’ Pledge, Open COVID Pledge). Some, like the Open COVID Pledge, which was developed by a coalition of scientists, engineers and legal experts (including the authors), are self-executing, inasmuch as any interested organization is automatically granted the right to use the licensed IPR without further paperwork. Others, like the Harvard–MIT–Stanford (HMS) pledge, provide a framework but still require organizations that wish to use pledged IPR to negotiate a separate license agreement with the IPR holder.

Table 1 Selected IPR pledges in response to COVID-19a

Some unilateral pledges, such as the one made by equipment manufacturer Medtronic, cover not only formal IPR, but also data files and designs for equipment and parts, which are often essential when manufacturing such devices. This pledge, like that made by pharmaceutical manufacturer AbbVie, is limited to a particular product (a ventilator in the case of Medtronic, a drug in the case of AbbVie). While these pledges are narrower than open-ended pledges covering all of an organization’s IPR, their specificity makes their application to particular technologies clear, which facilitates usability. It may be more difficult for potential users to determine how they can use IPR that is licensed on a broad but nonspecific basis8.

The Medtronic pledge also adopts a ‘share alike’ feature, borrowed from the well-known GNU General Public License and certain Creative Commons licenses that require that the user of pledged IPR make its modifications and improvements openly available on the same terms as the pledged IPR. Such provisions are intended to prevent the users of freely licensed IPR from making proprietary improvements to that IPR to gain a competitive advantage over the pledgor. Protective measures like these could be particularly important when competitors are required to cooperate to supply crisis-critical products.

Like the Wellcome Trust Publishers’ Pledge for copyrighted material, the Open COVID Pledge was not developed by a particular IPR owner, but as a neutral mechanism for adoption by an unlimited number of IPR owners. Organizations adopting the Open COVID Pledge can utilize a template license that was developed by the coalition or customize one of their own. These customizations can more specifically detail the IPR pledged, the duration of the license, and specific limitations that may be required by law or prior agreements that bind the IPR owner. Since its launch, the Open COVID Pledge has been adopted by organizations large and small, holding in excess of 250,000 patents worldwide. The similar Japan-based Open COVID-19 Declaration boasts 96 signatories who have pledged close to one million patents. Industry sectors most heavily represented by these pledges include computing, telecommunications, social media, software, equipment, automotive and chemicals.

Pledging and pricing

Despite their variations, all of the IPR pledges described above share a key feature: they enable users, typically anywhere in the world, to use the pledged IPR without the threat of litigation, and to do so for free for at least some period. Though royalty-free pledges do not generate immediate monetary compensation for IPR holders, they are not economically irrational. While the IPR owner necessarily foregoes direct revenue associated with the use of its IPR, it only does so for a limited period (the duration of the pandemic and one year thereafter) and has the ability to negotiate fee-bearing licenses after that period and in fields other than COVID-19.

Previous scholarship has identified a range of motivations that lead IPR holders to make their IPR available for broad use without compensation, including accelerating diffusion of an emerging technology, seeking favor with governmental agencies and courts, enhancing public relations and acting in accordance with corporate social responsibility and philanthropic goals4,7,9. IPR pledges that have been made in connection with the COVID-19 pandemic likely fall into several of these categories.

Some IPR owners might be concerned that users of their pledged IPR will charge excessive prices for resulting products, which is not in the spirit of either their pledge or societal expectations in the current pandemic crisis. To prevent this behavior, some of the above-mentioned pledges, such as the HMS university pledge and Oxford University’s pledge, require that users charge “fair” or no more than “cost-plus” prices for resulting products. The Open COVID Pledge, by contrast, does not contain such user pricing clauses, as the designers were concerned that such a constraint could deter some producers from using the pledged IPR in a setting where the widespread distribution of needed products and services is paramount.

Pledges versus pools

In addition to the IPR pledges discussed above, proposals have been made, both at the United Nations World Health Organization (WHO) and within the European Union, for the assembly of IPR relating to COVID-19 in one or more formal IPR pools. Whereas a coordinated pledge is a joint initiative of multiple organizations to share their IPR on similar terms, an IPR pool is typically a private arrangement among IPR owners to operate under one another’s IPR, to manage and administer it through a centralized mechanism, and often to license it to third parties, with proceeds allocated among the pool participants according to an agreed formula. IPR pools have been formed for nearly a century in industries ranging from aviation and semiconductors to copyrighted music and performances. One of the major advantages of pools is the consolidation of complementary IPR rights into a single source, overcoming problems of fragmentation and ‘thickets’ that can arise with respect to diversely held IPR3.

IPR pools were considered in response to the SARS outbreak of 2002–2003, the H5N1 influenza outbreak of 2005 and the H1N1 influenza pandemic of 200910,11. Yet despite a perceived need for aggregation of distributed IPR rights, pools, which generally require complex and coordinated negotiations among IPR owners, were never formed in these cases for a variety of practical, financial and competitive reasons10,11.

In the case of COVID-19, the precise contours of proposed pooling efforts have not yet been announced. One potential model is the WHO’s Medicines Patent Pool (MPP; MPP is not technically an IPR pool. Rather, it serves as an intermediary or clearinghouse to which organizations can license IPR relating to HIV, tuberculosis and hepatitis C. MPP then negotiates outbound sublicenses (sometimes royalty bearing) with generic drug manufacturers serving low-income countries. Several significant IPR holders, including AbbVie, Bristol-Myers Squibb, Gilead Sciences and Pfizer, have granted royalty-free licenses to MPP, which has in turn granted 22 sublicenses to generic product manufacturers.

While the goals of such government-sponsored arrangements are consistent with those of the IPR pledges, they generally require greater time, financial backing and political willpower to implement than the lightweight and self-executing mechanisms inherent to pledges. And in a time of pandemic, when every day counts, the voluntary pledging approaches discussed here can serve as useful complements to more formalized government-driven arrangements. This being said, passive pledges that lack ongoing stewardship and active efforts to match users with pledged IPR have been shown in the past to underperform8. Thus, programs such as the Open COVID Pledge, which is administered and hosted by Creative Commons, have sought to implement outreach strategies with respect to both IPR holders and potential users of pledged IPR.

Pledges versus compulsory licensing

In addition to the voluntary mechanisms described above, some governments have threatened or taken action to authorize the use of privately held IPR without the consent of the owners. Such compulsory licensing approaches are well-known mechanisms with established legal frameworks under national law and international treaty. In the current crisis they have already been enacted in Canada, Israel, Germany, Chile and Ecuador, with active discussions elsewhere12. While such measures can address health needs within the countries enacting them, they have limited effectiveness on a global scale, particularly if major countries like the United States and China decline to follow suit. However, this is exactly the scale on which IPR access is needed during the COVID-19 crisis.

Moreover, compulsory measures are typically opposed by IPR owners, decreasing the likelihood of meaningful cooperation or knowledge transfer among IPR owners and users. And, as shown elsewhere, such cooperation above and beyond passive licenses of IPR may be important to the effective deployment of complex technologies for crisis-critical products8,13. Indeed, the threat of compulsory licensing and other governmental action has seemingly encouraged some companies to make broader, global pledges. One example of this effect may be AbbVie, which announced the public availability of IPR covering its patented HIV drug Kaletra (lopinavir/ritonavir) shortly after the Israeli government authorized generic manufacture of the drug14.

Pledges versus the public domain

IPR pledges occupy a legal middle ground between the full exclusivity afforded by the law and an outright contribution to the public domain. Like open source code software licenses, IPR pledges coupled with license agreements enable the IPR owner to retain some degree of control over the IPR in question. Most importantly, many of the pledges described above last for limited periods of time (namely, during the pandemic and for a short period thereafter) and apply only to limited fields of use (addressing COVID-19). This limited scope is important, as many medical and other technologies used to combat COVID-19 have other applications, and it is unlikely that for-profit firms would be willing to relinquish all markets for their products as a condition to contributing to the fight against COVID-19. Moreover, if a user develops a useful product based on pledged IPR, then it will have an incentive to seek a commercial license from the IPR owner if it wishes to continue to market that product after the pandemic. In addition, some pledges, such as the Open COVID Pledge, allow for ‘defensive suspension’ of the licenses granted. That is, if a pledgor is sued for patent infringement, it may suspend any licenses that it previously granted to the aggressor. Thus, while the contribution of IPR to the public domain achieves many of the same access goals as IPR pledges, it can be a less attractive option for commercial entities.


While IPR aims to reward innovators for technological developments, it can also become a barrier to rapid and efficient collective action in the face of a public health emergency. While more draconian measures have been suggested to eliminate IPR barriers to research and manufacturing of products essential to the fight against COVID-19 (for example, compulsory licensing), a less onerous path involves voluntary pledges made by IPR holders. Such pledges — temporary in duration and narrow in scope — can enable critical public health research and manufacturing of crisis-critical products, while preserving for their owners the prospect of financial rewards and influence over markets after the pandemic ends. By the same token, such pledges are lightweight and efficient, avoiding the administrative, legal and political delays that have hindered previous pooling proposals in response to public health emergencies.

Nevertheless, the lightweight, self-executing and sometimes broad nature of pledges could, without ongoing stewardship and active assessment of the rights being made available, challenge users seeking to find specific pledged IP. Although the full economic and health implications of ongoing IPR pledges may take time to be appreciated fully, we recommend that, with respect to the COVID-19 pandemic, governments encourage, and possibly incentivize, the voluntary pledging mechanisms described here.

This being said, the profiles of organizations that have made IPR pledges in the current pandemic has been uneven. While there has been significant representation by the technology and equipment sectors, comparatively little voluntary action has been taken to date with respect to IPR covering vaccines or therapeutics (with a few exceptions, such as AbbVie’s unilateral pledge of Kaletra and pledges by some Japanese chemical firms with pharmaceutical divisions). Simple economic forces may be at work here, as firms that anticipate a direct and significant windfall from the sale of COVID-19 products may be less inclined to commit their IPR to the public cause or to make it available to their competitors. In these cases, governmental compulsory licensing may be the only realistic mechanism for making IPR broadly available. Moreover, if society wishes to incentivize the discovery of new treatments for COVID-19 (as opposed to the repurposing of existing ones), it is not clear that compulsory licensing will result in the greatest level of private innovation. Thus, for some sectors of the economy, biopharma in particular, neither pledges nor compulsory licensing may achieve optimal results.

Nevertheless, as we have seen, countless technologies from outside the biopharma sector are critical to addressing the COVID-19 pandemic — emergency response, medical equipment, diagnostic kits, protective gear, software modeling, social distancing and many more. To the extent that these technologies can be made broadly available and accessible through voluntary IPR pledges, we believe that the effort to combat the pandemic and to mitigate its effects will be helped immeasurably.


  1. 1.

    Tietze, F., Vimalnath, P., Aristodemou, L. & Molloy, J. IEEE Trans. Eng. Manage. (2020).

  2. 2.

    Liu, C. et al. ACS Cent. Sci. 6, 315–331 (2020).

    CAS  Article  Google Scholar 

  3. 3.

    Contreras, J. L. Science 361, 335–337 (2018).

    CAS  Article  Google Scholar 

  4. 4.

    Contreras, J. L. & Jacob, M. (eds.). Patent Pledges: Global Perspectives On Patent Law’s Private Ordering Frontier (Edward Elgar Publishing, 2017).

  5. 5.

    Peters, D. M. Understanding Patent Pledges: An Overview of Legal Considerations (2006);

  6. 6.

    Ehrnsperger, J. F. & Tietze, F. PLoS One 14, e0221411 (2019).

    CAS  Article  Google Scholar 

  7. 7.

    Contreras, J.L. The evolving patent pledge landscape. CIGI Papers No. 166 (2018);

  8. 8.

    Contreras, J. L., Hall, B. H. & Helmers, C. Houst. Law Rev. 57, 61–109 (2019).

    Google Scholar 

  9. 9.

    Ehrnsperger, J. F., Tietze, F. & Vimalnath, P. Motives for patent pledges: a qualitative study. CTM Working Paper Series (University of Cambridge, 2019);

  10. 10.

    Beldiman, D. Tulane J. Tech. Intell. Prop. 15, 31–60 (2012).

    Google Scholar 

  11. 11.

    Greene, H. B. U. Law Rev. 90, 1397–1456 (2010).

    Google Scholar 

  12. 12.

    Houldsworth, A. The key covid-19 compulsory licensing developments so far. Intell. Asset Mgmt. (7 April 2020);

  13. 13.

    Lee, P. in Research Handbook on Intellectual Property and Technology Transfer (ed. Rooksby, J) pp. 214–235 (Edward Elgar Publishing, 2020).

  14. 14.

    Silverman, E. STAT (20 March 2020);

Download references

Author information



Corresponding author

Correspondence to Jorge L. Contreras.

Ethics declarations

Competing interests

Creative Commons is the organizational steward of the Open COVID Pledge. D.M.P. is an employee and general counsel of Creative Commons.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Contreras, J.L., Eisen, M., Ganz, A. et al. Pledging intellectual property for COVID-19. Nat Biotechnol 38, 1146–1149 (2020).

Download citation

Further reading


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing