Inventor

CLAUS DAVID M

US4 patents

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

AT & T BELL LAB

2 patents

US5310999AMay 10, 1994

Secure toll collection system for moving vehicles

AT & T BELL LAB366 citations94

US5120939AJun 9, 1992

Databaseless security system

AT & T BELL LAB172 citations94

AT & T CORP

1 patent

US5461217AOct 24, 1995

Secure money transfer techniques using smart cards

AT & T CORP489 citations97

LUCENT TECHNOLOGIES INC

1 patent

US5559313ASep 24, 1996

Categorization of purchased items for each transaction by a smart card

LUCENT TECHNOLOGIES INC302 citations95