Inventor
VIOLANTE ANTHONY F
US6 patents
Patents
6 patentsUS5812945ASep 22, 1998
Metered payment cellular telephone communication system
PITNEY BOWES INC94 citations97
US5949879ASep 7, 1999
Auditable security system for the generation of cryptographically protected digital data
PITNEY BOWES INC90 citations95
US6035043AMar 7, 2000
Cellular telephone manifest system
PITNEY BOWES INC20 citations92
US5740247AApr 14, 1998
Authorized cellular telephone communication payment refill system
PITNEY BOWES INC35 citations92
US5768383AJun 16, 1998
Authorized cellular voice messaging and/or analog or digital data communication access and verification control system
PITNEY BOWES INC9 citations73
US5765106AJun 9, 1998
Authorized cellular telephone communication access and verification control system
PITNEY BOWES INC12 citations73