Inventor · Westford, MA, US

William M. Duane

60Patents
20h-index
49Co-inventors
88Inventor score

Filing activity: Jul 19, 1999 → Apr 11, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8984602B1 Protected resource access control utilizing credentials based on message authentication codes and hash chain values Electricity 485 Active
US8990905B1 Protected resource access control utilizing intermediate values of a hash chain Electricity 483 Active
US7111172B1 System and methods for maintaining and distributing personal security devices Electricity 277 Expired
US7562221B2 Authentication method and apparatus utilizing proof-of-authentication module Electricity 264 Active
US7461250B1 System and method for certificate exchange Electricity 254 Expired
US8312519B1 Agile OTP generation Electricity 242 Active
US8566916B1 Agile OTP generation Electricity 213 Active
US8850538B1 Agile OTP generation Electricity 211 Active
US9306942B1 Agile OTP generation Electricity 211 Active
US9118663B1 Agile OTP generation Electricity 211 Active
US8370638B2 Derivative seeds Electricity 112 Active
US9049226B1 Defending against a cyber attack via asset overlay mapping Electricity 46 Active
US9119539B1 Performing an authentication operation during user access to a computerized resource Electricity 41 Active
US8307210B1 Method and apparatus for secure validation of tokens Electricity 33 Active
US8902045B1 Controlling access to a computerized resource based on authentication using pulse data Physics 31 Active
US8925058B1 Authentication involving authentication operations which cross reference authentication factors Physics 31 Active
US10581611B1 Systems and methods for cryptographic authentication of contactless cards Electricity 26 Active
US9306943B1 Access point—authentication server combination Electricity 24 Active
US8059814B1 Techniques for carrying out seed or key derivation Electricity 23 Active
US8631486B1 Adaptive identity classification Electricity 23 Active
US8751827B1 Apparatus for controlling embedded security on a storage platform Electricity 18 Active
US7979707B2 Secure seed generation protocol Electricity 16 Active
US8458483B1 Techniques for message-passing using shared memory of an RF tag Emerging Cross-Sectional Technologies 13 Active
US9667611B1 Situationally aware authentication Electricity 12 Active
US8683563B1 Soft token posture assessment Electricity 11 Active

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