| 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 |