American Telephone and Telegraph Company; AT&T Information Systems Inc;
Patent Applications and Registrations
Patent applications and USPTO patent grants for American Telephone and Telegraph Company; AT&T Information Systems Inc;.The latest application filed is for "option slot filler board".
- American Telephone and Telegraph Company; AT&T Information Systems Inc; - New York NY
- American Telephone and Telegraph Company; AT&T Information Systems Inc. - Murray Hill NJ
- American Telephone and Telegraph Co., AT&T Information Systems, Inc. - Holmdel NJ
| Patent | Date |
|---|---|
| Option slot filler board Grant 4,894,749 - Elko , et al. January 16, 1 | 1990-01-16 |
| Variable time slot communication system Grant 4,809,270 - Baxter , et al. February 28, 1 | 1989-02-28 |
| Method and apparatus for generating computer-controlled interactive voice services Grant 4,785,408 - Britton , et al. November 15, 1 | 1988-11-15 |
| Fraud prevention in a public telephone station Grant 4,782,516 - Maybach , et al. November 1, 1 | 1988-11-01 |
| Communication terminal call reminder with automatic dialing Grant 4,782,521 - Bartlett , et al. November 1, 1 | 1988-11-01 |
| Touch screen form entry system Grant 4,763,356 - Day, Jr. , et al. August 9, 1 | 1988-08-09 |
| Distributed timing control for a distributed digital communication system Grant 4,736,393 - Grimes , et al. April 5, 1 | 1988-04-05 |
| Computer-controlled cordless telephone Grant 4,731,814 - Becker , et al. March 15, 1 | 1988-03-15 |
| Telephone set or similar article Grant D294,496 - Drakulovic , et al. March 1, 1 | 1988-03-01 |
| Telephone handset Grant D294,500 - Drakulovic , et al. March 1, 1 | 1988-03-01 |
| Answer detection method and apparatus for coin telephone sets Grant 4,726,057 - Doerry , et al. February 16, 1 | 1988-02-16 |
| Telephone stand Grant D293,321 - Kowalik , et al. December 22, 1 | 1987-12-22 |
| Telephone handset construction Grant 4,712,236 - Brown , et al. December 8, 1 | 1987-12-08 |
| Photoelastic touch-sensitive screen Grant 4,710,760 - Kasday December 1, 1 | 1987-12-01 |
| Adaptive thresholding scheme for optically-based touch screens Grant 4,707,689 - DiPiazza , et al. November 17, 1 | 1987-11-17 |
| Voice-switched telephone circuit with center idle state Grant 4,700,382 - Means , et al. October 13, 1 | 1987-10-13 |
| Transducer device Grant 4,691,363 - Khanna September 1, 1 | 1987-09-01 |
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