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Patent applications and USPTO patent grants for LaDue; Christoph K..The latest application filed is for "time division multiple access downlink personal communications system voice and data debit billing method".
Patent | Date |
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Time division multiple access downlink personal communications system voice and data debit billing method Grant 6,185,198 - LaDue February 6, 2 | 2001-02-06 |
Wireless cellular communicator system and apparatus Grant 6,144,859 - LaDue November 7, 2 | 2000-11-07 |
Method for transmitting voice or data in a wireless network depending on billing account status Grant 6,088,431 - LaDue July 11, 2 | 2000-07-11 |
Method and apparatus for transmitting subject status information over a wireless communications network Grant 5,889,474 - LaDue March 30, 1 | 1999-03-30 |
Wireless communications application specific enabling method and apparatus Grant 5,594,740 - LaDue January 14, 1 | 1997-01-14 |
Monitoring device for location verification Grant 5,525,969 - LaDue June 11, 1 | 1996-06-11 |
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