Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7419017 | Multi-sectional percussive drill bit assembly | Thomas Walker, Stephen R. Means | 2008-09-02 |
| 7389833 | Multi-sectional percussive drill bit assembly | Thomas Walker, Stephen R. Means | 2008-06-24 |
| 6810974 | Quick release drill bit for down-hole drills | Leland H. Lyon | 2004-11-02 |
| 6533052 | Drill bit for impact-assisted directional boring | Steven W. Wentworth, Robert F. Crane, Mark D. Randa, Randy R. Runquist | 2003-03-18 |
| 6236717 | Simultaneous voice/data answering machine | Gordon Bremer | 2001-05-22 |
| 6135216 | Venting and sealing system for down-hole drills | Leland H. Lyon | 2000-10-24 |
| 5915003 | Sketching unit for transmission of sketches and notes over normal telephone lines | Gordon Bremer, Ahmad M. Hassan, John C. Krejci, Susan J. Seamon, Kenneth D. Ko +1 more | 1999-06-22 |
| 5901205 | Adaptive voice and data bandwidth management system for multiple-line digital subscriber loop data communications | Thomas J. Bingel | 1999-05-04 |
| 5841840 | Multiple line modem and method for providing voice on demand | Thomas J. Bingel | 1998-11-24 |
| 5796716 | Method and apparatus for simultaneous voice/data transmission | — | 1998-08-18 |
| 5719922 | Simultaneous voice/data answering machine | Gordon Bremer | 1998-02-17 |
| 5719923 | Sketching unit for transmission of sketches and notes over normal telephone lines | Gordon Bremer, Ahmad M. Hassan, John C. Krejci, Susan J. Seamon, Kenneth D. Ko +1 more | 1998-02-17 |
| 5636282 | Method for dial-in access security using a multimedia modem | Kurt Holmquist | 1997-06-03 |
| 5602846 | Simultaneous voice and data call establishment using a simultaneous voice and data modem pool and private branch exchange facilities | Kurt Holmquist | 1997-02-11 |
| 5537441 | Controlled simultaneous analog and digital communication | Gordon Bremer, Joseph Q. Chapman, P. Michael Henderson, Kurt Holmquist, Kenneth D. Ko | 1996-07-16 |
| 5537436 | Simultaneous analog and digital communication applications | Stanley Bottoms, Gordon Bremer, Joseph Q. Chapman, William R. Davis, Kenneth D. Ko +2 more | 1996-07-16 |
| 5311596 | Continuous authentication using an in-band or out-of-band side channel | Robert E. Scott | 1994-05-10 |
| 5301246 | Data communications equipment security device using calling party directory number | James L. Archibald, Steven D. Hunt | 1994-04-05 |
| 4645871 | Non-interfering in-band protocol-independent diagnostic scanning in a digital multipoint communication system | Gordon Bremer, Thomas R. Armstrong, Kurt Holmquist | 1987-02-24 |
| 4405303 | Portable recreational marker buoy | — | 1983-09-20 |