Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9244192 | Precipitation sensor | Robert M. Cullen, Chad Lawrence Andrews, Frederic S. Boericke, II, Roger H. Tancrell | 2016-01-26 |
| 8714007 | Precipitation sensor | Robert M. Cullen, Chad Lawrence Andrews, Frederic S. Boericke, II, Roger H. Tancrell | 2014-05-06 |
| 8582393 | Method and apparatus for controlling temperature of an acoustic transducer | Frederic S. Boericke, II, Francis S. Chase, Danny J. Fladung, Matthew G. Kay, Kenneth D. Rolt | 2013-11-12 |
| 8390316 | Termination resistor scheme | Frederic S. Boericke, II, Danny J. Fladung, Eric R. KUNZ | 2013-03-05 |
| 8326561 | Dynamic motion control | Alfonso R. Navarro, Jr., Frederic S. Boericke, II, Kenneth D. Rolt, Roger H. Tancrell | 2012-12-04 |
| 7961552 | Fan beam transducer assembly | Robert M. Cullen | 2011-06-14 |
| 7826729 | Underwater camera assembly | Robert M. Cullen | 2010-11-02 |
| 7739973 | Masthead control system | Robert K. Jeffers, Roger H. Tancrell | 2010-06-22 |
| 7369458 | Transducer identification | Andrew M. Sifferman, Frederic S. Boericke, II | 2008-05-06 |
| 7352171 | Paddlewheel speed correction | Frederic S. Boericke, II | 2008-04-01 |
| 7110908 | Paddlewheel speed correction | Frederic S. Boericke, II | 2006-09-19 |
| 6904798 | Multi-functional marine sensing instrument | Robert M. Cullen, Jun Lan | 2005-06-14 |
| 6678208 | Range computations for correlation speed sensor | Andrew M. Sifferman, Roger H. Tancrell | 2004-01-13 |
| 6671225 | Correlation speed sensor | James Bartz, Roger H. Tancrell | 2003-12-30 |
| 6426918 | Correlation speed sensor | James Bartz, Roger H. Tancrell | 2002-07-30 |
| 5719824 | Transducer assembly with acoustic damping | — | 1998-02-17 |
| 5606253 | Guided flow marine speedometer including angularly shaped housing for guiding water to a paddlewheel sensor at that angle | Maurice P. Lagace, Robert K. Jeffers | 1997-02-25 |
| 5581025 | Marine instrument | Maurice P. Lagace | 1996-12-03 |
| 5390152 | Forward looking echosounder | Michael J. Simoneau | 1995-02-14 |
| D334335 | Transducer mounting bracket | Robert M. Cullen, Maurice P. Lagace, Andrew L. Noyes | 1993-03-30 |
| 5186050 | Marine sensor mounting mechanism | Maurice P. Lagace, Robert M. Cullen, Andrew L. Noyes, John Willette, Cynthia M. Russell | 1993-02-16 |
| RE33982 | Marine instrument | — | 1992-07-07 |
| 4898029 | Marine instrument | — | 1990-02-06 |
| 4850559 | Marine instrument mounting mechanism | — | 1989-07-25 |
| 4836020 | Marine instrument | — | 1989-06-06 |