CW

Charles A. Walton

Mastercard: 3 patents #481 of 2,005Top 25%
Overall (All Time): #128,068 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 25 most recent of 29 patents

Patent #TitleCo-InventorsDate
12309288 Systems and methods for use in appending log entries to data structures Rajat Maheshwari, Karthik Ramanathan, Prashant Sharma 2025-05-20
11991292 Systems and methods for use in appending log entries to data structures Rajat Maheshwari, Karthik Ramanathan, Prashant Sharma 2024-05-21
10873853 Systems and methods for managing digital identities associated with users Ashfaq Kamal, Robert D. Reany 2020-12-22
6742714 Proximity card with incorporated PIN code protection Kenneth B. Cecil 2004-06-01
6590536 Body motion detecting system with correction for tilt of accelerometers and remote measurement of body position 2003-07-08
6340116 Proximity card with incorporated pin code protection Kenneth B. Cecil 2002-01-22
5989157 Exercising system with electronic inertial game playing 1999-11-23
5896215 Multi-channel system with multiple information sources Kenneth B. Cecil 1999-04-20
5342116 Programmer's anti-slump chair with knee support 1994-08-30
5159332 Proximity identification system with flux concentration in operating region 1992-10-27
5022099 Radiation helmet 1991-06-11
5021778 Capacitance coupled proximity identification system 1991-06-04
4980539 Portable warmer 1990-12-25
4918416 Electronic proximity identification system France Rode 1990-04-17
4888474 Proximity identification system with lateral flux magnetic rod coupling 1989-12-19
4782342 Proximity identification system with lateral flux paths 1988-11-01
4656472 Proximity identification system with power aided identifier 1987-04-07
4654658 Identification system with vector phase angle detection 1987-03-31
4600829 Electronic proximity identification and recognition system with isolated two-way coupling 1986-07-15
4580041 Electronic proximity identification system with simplified low power identifier 1986-04-01
4546241 Electronic proximity identification system 1985-10-08
4473825 Electronic identification system with power input-output interlock and increased capabilities 1984-09-25
4459474 Identification system with separation and direction capability and improved noise rejection 1984-07-10
4388524 Electronic identification and recognition system with code changeable reactance 1983-06-14
4384288 Portable radio frequency emitting identifier 1983-05-17