Table 5 This table describes the type of attributes we constructed for each potential location in step 3.

From: Unveiling the geography of historical patents in the United States from 1836 to 1975

Variable Type Comment
State Dummy 1 if the name of the corresponding state was found. 0 otherwise.
Name Match Dummy 1 if any place name within potential counties from stage 2 is found. 0 otherwise.
Nmatch Integer Number of name matches in ‘Name Match’.
Frequency PAL Integer Frequencies for locations obtained from the Patent to Assignee to Location Network (PAL) as described in Fig. 4.
Frequency PIL Integer Frequencies for locations obtained from the Patent to Inventor to Location Network (PIL) as described in Fig. 4.
Proportion PAL Continuous Proportion for locations obtained from the Patent to Assignee to Location Network (PAL) as described in Fig. 4.
Proportion PIL Continuous Proportion for locations obtained from the Patent to Inventor to Location Network (PIL) as described in Fig. 4.
Frequency PACL Integer Frequencies for locations obtained from the Patent to Assignee to Location to Class Network (PACL) as described in Fig. 4. It includes the restriction that the patent class should be the same to create a link between inventors name.
Frequency PICL Integer Frequencies for locations obtained from the Patent to Inventor to Location to Class Network (PICL) as described in Fig. 4. It includes the restriction that the patent class should be the same to create a link between inventors name.
Proportion PACL Continuous Proportion for locations obtained from the Patent to Assignee to Location to Class Network (PACL) as described in Fig. 4. It includes the restriction that the patent class should be the same to create a link between inventors name.
Proportion PICL Continuous Proportion for locations obtained from the Patent to Inventor to Location to Class Network (PICL) as described in Fig. 4. It includes the restriction that the patent class should be the same to create a link between inventors name.
Frequency PAYL Integer Frequencies for locations obtained from the Patent to Assignee to Location to Year Network (PAYL) as described in Fig. 4. It includes the restriction that the patent publication year should be between a span of 5 years to create a link between inventors name.
Frequency PIYL Integer Frequencies for locations obtained from the Patent to Inventor to Location to Year Network (PIYL) as described in Fig. 4. It includes the restriction that the patent publication year should be between a span of 5 years to create a link between inventors name.
Proportion PAYL Continuous Proportion for locations obtained from the Patent to Assignee to Location to Year Network (PAYL) as described in Fig. 4. It includes the restriction that the patent publication year should be between a span of 5 years to create a link between inventors name.
Proportion PIYL Continuous Proportion for locations obtained from the Patent to Inventor to Location to Year Network (PIYL) as described in Fig. 4. It includes the restriction that the patent publication year should be between a span of 5 years to create a link between inventors name.
Ubiquity Integer Ubiquity of the name of the inventor/assignee.
WX Continuous Index constructed with all the aforementioned variables for ‘competing’ CL within the same patent, as it is usual in spatial settings.