Inventor · Duvall, WA, US

Jeffrey F. Spelman

14Patents
11h-index
20Co-inventors
68Inventor score

Filing activity: Jun 29, 1995 → Jun 30, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US5790677A System and method for secure electronic commerce transactions Electricity 869 Expired
US6560581B1 System and method for secure electronic commerce transaction Electricity 445 Expired
US5689565A Cryptography system and method for providing cryptographic services for a computer application Physics 246 Expired
USRE38070E1 Cryptography system and method for providing cryptographic services for a computer application General 109 Expired
US5680458A Root key compromise recovery Electricity 49 Expired
US5638445A Blind encryption Electricity 34 Expired
US7702917B2 Data transfer using hyper-text transfer protocol (HTTP) query strings Electricity 28 Active
US5761311A Blind encryption Electricity 25 Expired
US7603555B2 Providing tokens to access extranet resources Electricity 16 Active
US7571199B1 Method and apparatus for generating random numbers Electricity 16 Expired
US8108920B2 Passive client single sign-on for web applications Electricity 11 Active
US5764768A Blind encryption Electricity 10 Expired
US7748046B2 Security claim transformation with intermediate claims Electricity 6 Active
US8245051B2 Extensible account authentication system Physics 1 Active

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