Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Historic Intellectual Property（historicip.com）is a personal research-oriented website focused on historical intellectual property materials such as old patents, trademarks, printed materials, and labels. The author states clearly that the site was created to organize data that is not available on the USPTO website, is not searchable there, or is otherwise difficult to access, and to provide an entry point for researchers of historical intellectual property.
The site’s most valuable feature is supplementary data search. It includes OCR search across more than one million records, mostly expired trademarks; around 600,000 trademarks that are not searchable in TESS; pre-1920 U.S. patent assignee search; a plant patent database and CPC statistics; early OCR-based plant patent search; and explanatory materials on X Patents/Fractional X Patents. The plant patent pages also provide statistics by decade, classification, issue date, and other dimensions, making them useful for historical verification and topic-specific research.
From a developer-tool perspective, this is not an API platform or SDK product. The site does not provide its own API, bulk downloads, SDK, webhooks, or self-hosting option. Technical information is also limited: the OCR search notes mention the use of MySQL and explain limitations such as short words, stop words, and high-frequency words not being indexable. The author mentions using the PatentsView API and PAIR Bulk Data API, as well as following PEDS, but these are external data sources rather than open interfaces provided by the site itself.
The site is free to access. The author says Google Ads are used to cover operating costs and fund the acquisition of materials; no subscription or paid service is apparent. In terms of ecosystem, the site is closely connected with data sources and communities such as USPTO, TESS, TSDR, ppubs, PatentsView, PEDS, the University of Maryland plant patent project, and datamp.org.
Its strengths are rare materials, transparent methodology, and targeted supplementation of gaps in USPTO data. Its weaknesses are that it is clearly a personal project, so completeness and ongoing synchronization should not be expected at the level of a commercial service; the interface and documentation also feel more like a reference archive than a developer platform. It is suitable for patent information users, historical trademark researchers, antique tool researchers, and library/archive researchers. It is not suitable for teams that need a stable API, bulk data pipelines, or enterprise SLAs.
The crawled text does not provide information about access from mainland China, payment, or mirrors, so this is unknown. If access is unstable, alternatives or complementary sources such as USPTO, Google Patents, PatentsView, PEDS, or datamp.org may be considered first.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on historicip.com official site.
historicip.com is an United States API & Data provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach historicip.com directly.