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Inventor

KAUFMAN CHARLES WILLIAM

US14 patents
⚠️ This page may combine multiple inventors who share the name “KAUFMAN CHARLES WILLIAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EMC IP HOLDING CO LLC

3 patents
US11290276B2Mar 29, 2022

Method and system for a signed document validity service

EMC IP HOLDING CO LLC2 citations72
US11435907B2Sep 6, 2022

Ensuring data authenticity using notary as a service

EMC IP HOLDING CO LLC0 citations52
US11240005B2Feb 1, 2022

Method and system for querying a secure database located on an untrusted device

EMC IP HOLDING CO LLC0 citations51

DIGITAL EQUIPMENT CORP

1 patent
US5666415ASep 9, 1997

Method and apparatus for cryptographic authentication

DIGITAL EQUIPMENT CORP481 citations98

IBM

1 patent
US6687825B1Feb 3, 2004

Data processing system and method for protecting data in a hard drive utilizing a signature device

IBM22 citations92

KELJO JONATHAN

1 patent
US8082442B2Dec 20, 2011

Securely sharing applications installed by unprivileged users

KELJO JONATHAN51 citations88

MICROSOFT CORP

1 patent
US7900248B2Mar 1, 2011

Access control negation using negative groups

MICROSOFT CORP7 citations79

DOWNEN MICHAEL D

1 patent
US8402532B2Mar 19, 2013

Host control of partial trust accessibility

DOWNEN MICHAEL D8 citations78

MICROSOFT TECHNOLOGY LICENSING LLC

1 patent
US9253195B2Feb 2, 2016

Transformation of sequential access control lists utilizing certificates

MICROSOFT TECHNOLOGY LICENSING LLC2 citations62

SCHECHTER STUART

1 patent
US9124431B2Sep 1, 2015

Evidence-based dynamic scoring to limit guesses in knowledge-based authentication

SCHECHTER STUART2 citations61

ELLISON CARL MELVIN

1 patent
US8468579B2Jun 18, 2013

Transformation of sequential access control lists utilizing certificates

ELLISON CARL MELVIN3 citations60

DELL PRODUCTS LP

1 patent
US12535963B2Jan 27, 2026

Method and system for supporting dedupe, compression, logical volume crypto-erasure, and physical volume crypto-erasure on a storage array

DELL PRODUCTS LP0 citations49

RADZIKOWSKI ERIC

1 patent
US8839375B2Sep 16, 2014

Managing distributed operating system physical resources

RADZIKOWSKI ERIC3 citations49

KAUFMAN CHARLES WILLIAM

1 patent
US8706635B2Apr 22, 2014

Use of licensed content without identification thereof

KAUFMAN CHARLES WILLIAM0 citations33