Inventor · San Francisco, CA, US

Douglas B. Evans

15Patents
10h-index
7Co-inventors
65Inventor score

Filing activity: Jul 25, 1983 → Dec 6, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7171018B2 Portable devices and methods employing digital watermarking Physics 233 Expired
US6577746B1 Watermark-based object linking and embedding Emerging Cross-Sectional Technologies 155 Expired
US6965682B1 Data transmission by watermark proxy Electricity 100 Expired
US7505605B2 Portable devices and methods employing digital watermarking Electricity 79 Active
US7545951B2 Data transmission by watermark or derived identifier proxy Electricity 77 Active
US6917691B2 Substituting information based on watermark-enable linking Emerging Cross-Sectional Technologies 31 Expired
US7965864B2 Data transmission by extracted or calculated identifying data Electricity 24 Active
US7362879B2 Substituting objects based on steganographic encoding Emerging Cross-Sectional Technologies 24 Active
US7773770B2 Substituting or replacing components in media objects based on steganographic encoding Emerging Cross-Sectional Technologies 16 Active
US7209573B2 Substituting images in copies based on digital watermarks Emerging Cross-Sectional Technologies 12 Expired
USD283896S Alternator stand General 7 Expired
US8036420B2 Substituting or replacing components in sound based on steganographic encoding Emerging Cross-Sectional Technologies 5 Active
USD283326S Engine fan housing General 1 Expired
US12201050B2 Rotational sprouter system Emerging Cross-Sectional Technologies 0 Active
US11895940B2 Rotational sprouter system Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.