Unique ID: 2015105

Division: Office of Information and Regulatory Affairs
Issue Date: February 13th 2019
Last modified: February 22nd 2019

Patent Technology Classifications

Tracking technological evolution using administrative patent data

Technology classifications assigned to US patents are extracted, and automatically indexed to one of 13,141 mainline subclass categories. With this information, we can track the combinatorial history of technological evolution.

Project Objective:

Scientific / research

Project Outcomes:

The project is ongoing. The first academic publication is being prepared for submission.

Statistical Area


Project Sources
Project Sources
Type Of Institution: National statistical office
Big Data Source: Other
Region: North America
Country Area: United States
Id Country Regional: country
Other Partners: Other
Accessing Data
Accessing Data
Data Access Rights: Broader access rights
Data Access Comments: The data are freely available. The challenge is extracting useful information from it.
Data Coverage
Data Coverage
Data Coverage: All available data
Coverage Geo Pop: Whole country / high % of market
Cost Implication: Free
Coverage Geo Comments: Covers all granted U.S. utility patents
Coverage Period: 1836-present day
Methods Used: Other methods
Methods Comments: Text extraction
Technologies: Other
Technologies Comments: Python is used to organize data
Income Level: High-income
Iso: US
Timeframe To Produce Indicator: NA
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