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COMETS Codebook

A detailed account of the methodologies used and choices made in building COMETS is found in Lynne G. Zucker, Michael R. Darby and Jason Fong, “Communitywide Database Designs for Tracking Innovation Impact: COMETS, STARS and Nanobank,” Annals of Economics and Statistics (Annales d’Economie et Statistique), Issue 115/116, December 2014, preprint at National Bureau of Economic Research Working Paper No. 17404, revised March 2014. Excel file available here.

In complement to this basic source, the codebook contains names and descriptions of the fields in the COMETS data set.

The codebook is organized in three main sections, ordered as follows:

  • Section 1: Patents
  • Section 2: Grants (NSF and NIH)
  • Section 3: Universities

Definitions of codes used in the data can be found in additional tabs in this document. The link in the “Reference Sheet” column of the codebook will go to the tab containing information for that particular field.


SECTION 1 : Patents
patentsPatent number, application and grant dates
patent_citationsPatent numbers and grant years of citing and cited patents
patent_cite_countsNumber of citations by year
patent_int_classesInternational patent classes
patent_us_classesUS patent classes
patent_abstractsPatent title and abstract
patent_assigneesPatent assignee names and addresses
patent_inventorsPatent inventor names and addresses
patent_zd_catsZucker-Darby Science and Technology Area classifications for patents
patent_nanoNanotechnology-related flags for patents through grant year 2005

SECTION 2 : Grants 
grantsGeneral grant information
grantee_orgsReceiving organization names and addresses
grant_pisPrinciple Investigator information
grant_co_pisCo-Investigator information
grant_abstractsGrant title and abstract
grant_zd_catsZucker-Darby Science and Technology Area classifications for grants
grant_nanoNanotechnology-related flags for grants through 2006
grant_nsfInformation specific to NSF grants
grant_nsf_programsNSF programs associated with a grant
grant_nsf_fieldsNSF fields associated with a grant
grant_nihInformation specific to NIH grants
grant_nih_tagsDescriptive tags assigned to NIH grants
grant_nih_core_proj_numsCore project numbers for NIH grants

SECTION 3 : Universities 
univ_org_infoIPEDS unitid, ZD org_id, BEA_2005
univ_institutional_infoIPEDS address information
univ_enrollmentsUndergraduate and graduate enrollments
univ_degreesDegrees awarded by Zucker-Darby Science and Technology Area classifications
univ_systemsUniversity systems table
univ_faculty_extendedFaculty data by gender, contract length, and role
univ_system_patents*Patents for university systems
univ_student_demographicsStudent breakdowns by race and gender