Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10924811 | Compensation device for maintaining a desired signal quality in transmitted signals | David Kelma, Joseph Lai, Steven K. Shafer | 2021-02-16 |
| 10264325 | System, method and device having teaching and commerce subsystems | David Kelma, Joseph Lai, Steven K. Shafer | 2019-04-16 |
| 9271026 | Dynamically configurable frequency band selection device between CATV distribution system and CATV user | David Kelma, Joseph Lai, Steven K. Shafer | 2016-02-23 |
| 8832767 | Dynamically configurable frequency band selection device between CATV distribution system and CATV user | David Kelma, Joseph Lai, Steven K. Shafer | 2014-09-09 |
| 8464301 | Upstream bandwidth conditioning device between CATV distribution system and CATV user | David Kelma, Joseph Lai, Raymond Palinkas | 2013-06-11 |
| 8181211 | Total bandwidth conditioning device | David Kelma, Joseph Lai, Noah Montena, Steven K. Shafer | 2012-05-15 |
| 8082570 | Method and apparatus for a self-terminating signal path | David Kelma, Joseph Lai, Erdogan Alkan, David H. Jackson, Raymond Palinkas +1 more | 2011-12-20 |
| 8001579 | Downstream output level and/or output level tilt compensation device between CATV distribution system and CATV user | David Kelma, Joseph Lai, Raymond Palinkas | 2011-08-16 |
| 6776108 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2004-08-17 |
| 6742465 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2004-06-01 |
| 6739272 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2004-05-25 |
| 6564730 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2003-05-20 |
| 6401638 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2002-06-11 |
| 6374759 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2002-04-23 |
| 6332413 | Seed tube for seed metering apparatus | John F. Stufflebeanm, Lisle J. Dunham, Chad M. Johnson, David N. Slowinski | 2001-12-25 |
| 6325005 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2001-12-04 |
| 6165089 | Transmission apparatus and method | Timothy R. McGreal, Guntis Ozers, Ryan Edward Schultz | 2000-12-26 |
| 6109193 | Seed planter apparatus and method | Richard J. Crabb, Guntis Ozers, David N. Slowinski, Chad M. Johnson, Donald Johnson +5 more | 2000-08-29 |
| 5974988 | Seed metering apparatus seed tube | John F. Stufflebeam, Lisle J. Dunham | 1999-11-02 |
| 5848571 | Seed singulator assembly for a seed metering mechanism | John F. Stufflebeam, Lisle J. Dunham, Stephen D. Berry | 1998-12-15 |
| 5842428 | Vacuum seed metering apparatus having housing openings | John F. Stufflebeam, Lisle J. Dunham, Donald Johnson | 1998-12-01 |
| 5839378 | Agitator assembly for a seed metering mechanism | John F. Stufflebeam, Lisle J. Dunham | 1998-11-24 |
| 5799598 | Apparatus for sealing a vacuum chamber of a seed metering apparatus | John F. Stufflebeam, Lisle J. Dunham | 1998-09-01 |
| 5765720 | Baffle assembly for a seed metering mechanism | John F. Stufflebeam, Lisle J. Dunham, Gerald J. Tiedt | 1998-06-16 |
| 5740747 | Vacuum seed metering assembly | John F. Stufflebeam, Lisle J. Dunham | 1998-04-21 |