P

Inventor

LEE DAVID K

US68 patents
⚠️ This page may combine multiple inventors who share the name “LEE DAVID K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PITNEY BOWES INC

34 patents
US5796841AAug 18, 1998

Secure user certification for electronic commerce employing value metering system

PITNEY BOWES INC228 citations99
US5781438AJul 14, 1998

Token generation process in an open metering system

PITNEY BOWES INC394 citations99
US5742683AApr 21, 1998

System and method for managing multiple users with different privileges in an open metering system

PITNEY BOWES INC184 citations99
US6466921B1Oct 15, 2002

Virtual postage meter with secure digital signature device

PITNEY BOWES INC151 citations98
US5625694AApr 29, 1997

Method of inhibiting token generation in an open metering system

PITNEY BOWES INC104 citations98
US5812945ASep 22, 1998

Metered payment cellular telephone communication system

PITNEY BOWES INC94 citations97
US6157919ADec 5, 2000

PC-based open metering system and method

PITNEY BOWES INC64 citations96
US6151590ANov 21, 2000

Network open metering system

PITNEY BOWES INC69 citations96
US6134328AOct 17, 2000

Secure user certification for electronic commerce employing value metering system

PITNEY BOWES INC38 citations96
US6061671AMay 9, 2000

System and method for disaster recovery in an open metering system

PITNEY BOWES INC80 citations96
US6058193AMay 2, 2000

System and method of verifying cryptographic postage evidencing using a fixed key set

PITNEY BOWES INC83 citations96
US5987441ANov 16, 1999

Token generation process in an open metering system

PITNEY BOWES INC71 citations96
US5982896ANov 9, 1999

System and method of verifying cryptographic postage evidencing using a fixed key set

PITNEY BOWES INC55 citations96
US5793867AAug 11, 1998

System and method for disaster recovery in an open metering system

PITNEY BOWES INC96 citations96
US5590198ADec 31, 1996

Open metering system with super password vault access

PITNEY BOWES INC59 citations96
US6098058AAug 1, 2000

Postage metering system and method for automatic detection of remote postage security devices on a network

PITNEY BOWES INC65 citations94
US6985888B1Jan 10, 2006

Secure user certification for electronic commerce employing value metering system

PITNEY BOWES INC14 citations93
US6898581B1May 24, 2005

Secure user certification for electronic commerce employing value metering system

PITNEY BOWES INC16 citations93
US6865557B1Mar 8, 2005

Network open metering system

PITNEY BOWES INC26 citations93
US6430543B1Aug 6, 2002

Controlled acceptance mail fraud detection system

PITNEY BOWES INC52 citations93
US6285990B1Sep 4, 2001

Method for reissuing digital tokens in an open metering system

PITNEY BOWES INC40 citations93
US5963928AOct 5, 1999

Secure metering vault having LED output for recovery of postal funds

PITNEY BOWES INC37 citations93
US5835604ANov 10, 1998

Method of mapping destination addresses for use in calculating digital tokens

PITNEY BOWES INC19 citations93
US6085181AJul 4, 2000

Postage metering system and method for a stand-alone meter operating as a meter server on a network

PITNEY BOWES INC42 citations92
US5680456AOct 21, 1997

Method of manufacturing generic meters in a key management system

PITNEY BOWES INC24 citations92
US5499374AMar 12, 1996

Event driven communication network

PITNEY BOWES INC50 citations92
US5452419ASep 19, 1995

Serial communication control system between nodes having predetermined intervals for synchronous communications and mediating asynchronous communications for unused time in the predetermined intervals

PITNEY BOWES INC49 citations92
US5390351AFeb 14, 1995

System for communicating with plural nodes in predetermined intervals depended on integers assigned and changed based upon configuration thereof

PITNEY BOWES INC50 citations92
US5168804ADec 8, 1992

Postage meter having an automatic slogan sub-module

PITNEY BOWES INC32 citations92
US7647230B2Jan 12, 2010

Method and apparatus for tracking a special service delivery of a mail item created by an office worker

PITNEY BOWES INC8 citations84
US6260028B1Jul 10, 2001

Token generation process in an open metering system

PITNEY BOWES INC14 citations82
US7136839B2Nov 14, 2006

Method for reissuing digital tokens in an open metering system

PITNEY BOWES INC6 citations74
US7092930B2Aug 15, 2006

Architecture and method to secure database records from tampering in devices such as postage value dispensing mechanisms

PITNEY BOWES INC10 citations74
US6907399B1Jun 14, 2005

Secure user certification for electronic commerce employing value metering system

PITNEY BOWES INC5 citations74

COLGATE PALMOLIVE CO

8 patents

LEE DAVID K

5 patents

BLOCH BRIAN

2 patents

BOEING CO

1 patent

Showing the top 50 of 68 patents by PatentIndex Score.