Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5577848 | Light controlled touch pad for cursor and selection control on a computer display | — | 1996-11-26 |
| 5502460 | Ergonomic laptop computer and ergonomic keyboard | — | 1996-03-26 |
| 5485866 | Fluid shut off valve and fill level indication | — | 1996-01-23 |
| 5427137 | Fluid shut off valve and fill level indication | — | 1995-06-27 |
| 5378069 | Environmentally safe touch typing keyboard | — | 1995-01-03 |
| 5247570 | Telephone answering system and apparatus for direct caller selection of a party line extension | — | 1993-09-21 |
| 5086458 | Telephone answering system and apparatus for direct caller selection of a party line extension | — | 1992-02-04 |
| 4910764 | Facsimile and voice communications interface device | — | 1990-03-20 |
| 4838643 | Single mode bend insensitive fiber for use in fiber optic guidance applications | Leslie Hodges, Roger Charlton | 1989-06-13 |
| 4713841 | Synchronous, asynchronous, data rate transparent fiber optic communications link | David R. Porter, John M. Holland | 1987-12-15 |
| 4694504 | Synchronous, asynchronous, and data rate transparent fiber optic communications link | David R. Porter, John M. Holland | 1987-09-15 |
| 4498167 | TDM Communication system | — | 1985-02-05 |
| 4435850 | Secure fiber optic data transmission system | David Baldwin, Philip R. Couch | 1984-03-06 |
| 4281596 | Imprinter and method of making same | — | 1981-08-04 |