patentsview — U.S. patents: citations, inventors, assignees and classes (PatentsView, 1976-2026)

Description

The utility, design, plant and reissue patents granted by the U.S. Patent and Trademark Office (USPTO) since 1976, their citations, inventors, assignees and technology classes, from the bulk data of PatentsView (the patent data platform of the USPTO), in a third-party copy: the tables were downloaded from PatentsView, processed and redistributed on Hugging Face by DataForge (data.zalize.com), as of August 2026. (PatentsView's own downloads now require an API key of the USPTO Open Data Portal.) The entry us_patents has the earlier citation network of 1975-1999 of the NBER.

citations: the citation network: a directed edge goes from a patent to each patent it cites (U.S. patents only; the citations of foreign patents and of the scientific literature are not included). Cited patents that are not in the table of patents (e.g. granted before 1976) are nodes without metadata.
inventors: the undirected bipartite network of the patents and their inventors, as disambiguated by PatentsView.
assignees: the undirected bipartite network of the patents and their assignees (the owners of the patents: companies, universities, government agencies, individuals), as disambiguated by PatentsView.
cpc: the undirected bipartite network of the patents and the groups of the Cooperative Patent Classification (CPC) to which they belong.
company_citations: the citations between companies, aggregated by DataForge: a directed edge goes from a company group (the assignees harmonized and grouped by company by DataForge) to a company group whose patents its patents cite, weighted by the number of citations (only the pairs with at least a minimum number of citations given by DataForge).

The texts of the patents (abstracts) and the derived statistics of DataForge (citation metrics, trends per class) are left out.

The networks have the following properties:

(Node) is_patent (bipartite networks): whether the node is a patent (otherwise an inventor, assignee or CPC group).
(Node) name: the patent number (e.g. 10000000, D1006496 for design patents, RE49999 for reissues), the PatentsView identifier of the inventor or of the assignee, the CPC group (e.g. H04L63/0428), or the name of the company group.
(Node) title (patents, citations): the title of the patent.
(Node) patent_type (patents, citations): utility, design, plant, reissue, ...
(Node) wipo_kind (patents, citations): the kind code, e.g. B2.
(Node) grant_date, filing_date (patents, citations): the dates of grant and filing (Unix time, -1 if unknown).
(Node) num_claims (patents, citations): the number of claims (-1 if unknown).
(Node) withdrawn (patents, citations): whether the patent was withdrawn.
(Node) cpc_subclass (patents, citations): the primary CPC subclass.
(Node) wipo_field (patents, citations): the WIPO technology field.
(Node) assignee (patents, citations): the harmonized name of the first assignee.
(Node) assignee_country (patents, citations): the country of the first assignee.
(Node) inventor_country (patents, citations): the country of the first inventor.
(Node) In the bipartite networks, patents have only their name.
(Edge) date (citations): the date of the cited patent given in the citation (Unix time, -1 if unknown).
(Edge) category (citations): who gave the citation: cited by applicant, cited by examiner, cited by other, cited by third party, imported from a related application, or empty if unknown.
(Node) first_name, last_name, country (inventors): the name and the country of the inventor (of their first record).
(Edge) sequence (bipartite networks): the position of the inventor, assignee or CPC group in the list of the patent.
(Node) assignee_name, name_harmonized (assignees): the name of the assignee, as given and harmonized.
(Node) group (assignees): the company group of DataForge.
(Node) is_individual (assignees): whether the assignee is an individual.
(Node) assignee_type (assignees): the USPTO assignee type code, e.g. 2 for a U.S. company, 3 for a foreign company, 6 for the U.S. government.
(Node) country, state, city (assignees): the location of the assignee.
(Node) section, class, subclass (CPC groups): the CPC section, class and subclass of the group.
(Edge) cpc_type (cpc): inventional or additional.
(Node) n_patents, first_grant_year, last_grant_year, country, top_cpc_subclasses (company groups, company_citations): the number of patents, the years of the first and last grants, the country and the top CPC subclasses of the group, from the company profiles of DataForge (empty, or -1, if missing).
(Edge) weight, first_year, last_year (company_citations): the number of citations, and the first and last year of the citations.

Tags

Informational Citation Collaboration Affiliation Bipartite Unweighted Metadata

Added

2026-10-31

Citation

PatentsView (U.S. Patent and Trademark Office); packaged by DataForge, "US Patents, Citations & Assignee Graph (USPTO / PatentsView)." Zenodo (2026) 10.5281/zenodo.21812658 Sci-Hub

Upstream URL OK

https://huggingface.co/datasets/zalizedata/us-patents-citation-company-dataset
https://data.zalize.com/datasets/us-patents-citation-company-dataset
https://patentsview.org/

Upstream license

CC BY-NC 4.0 (DataForge copy; PatentsView data: CC BY 4.0), https://creativecommons.org/licenses/by-nc/4.0/

Networks

Tip: click on a column header to sort the list, or hover over it for a description.

Column legend

$\left<k\right>$: Mean degree
$\sigma_k$: Standard deviation of the degrees
$\lambda_h$: Largest eigenvalue of the Hashimoto (non-backtracking) matrix
$\tau$: Random walk mixing time
$r$: Degree assortativity
$c$: Global clustering coefficient
$\oslash$: (Pseudo-) diameter
$S$: Relative size of the largest component
NPs: Node properties
EPs: Edge properties

Name	Nodes	Edges	$\left<k\right>$	$\sigma_k$	$\lambda_h$	$\tau$	$r$	$c$	$\oslash$	$S$	Kind	Mode	NPs	EPs	gt	GraphML	GML	csv
citations	11,380,067	145,878,465	12.82	89.66	2831.86	11030.58	0.50	0.22	57	0.96	Directed	Unipartite	name title patent_type wipo_kind cpc_subclass wipo_field assignee assignee_country inventor_country grant_date filing_date num_claims withdrawn	date category	695.5 MiB	1.377 GiB	1.366 GiB	N/A
inventors	13,228,767	22,884,194	3.46	9.31	157.46	11566.59	-0.03	0.00	52	0.82	Undirected	Bipartite	is_patent name first_name last_name country	sequence	169.5 MiB	N/A	N/A	N/A
assignees	8,639,739	8,385,078	1.94	118.85	90.32	56562.05	-0.08	0.00	41	0.62	Undirected	Bipartite	is_patent name assignee_name name_harmonized group country state city is_individual assignee_type	sequence	71.6 MiB	N/A	N/A	N/A
cpc	8,433,690	56,755,723	13.46	143.45	511.39	68.15	-0.08	0.00	18	1.00	Undirected	Bipartite	is_patent name section class subclass	sequence cpc_type	136.4 MiB	N/A	N/A	N/A
company_citations	219,622	2,229,371	10.15	180.83	549.10	23.23	-0.13	0.05	10	1.00	Directed	Unipartite	name n_patents first_grant_year last_grant_year country top_cpc_subclasses	weight first_year last_year	12.2 MiB	N/A	N/A	N/A