Erath; Louis W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Erath; Louis W..The latest application filed is for "feedback system for a multiple element loudspeaker".
- Erath; Louis W. - Abbeville LA
- Erath, Louis W. - Abbevile LA
- Erath; Louis W. - Houston TX
Trademarks
| Patent | Date |
|---|---|
| Feedback System for a Multiple Element Loudspeaker App 20070269055 - Erath; Louis W. | 2007-11-22 |
| Solid marine seismic cable Grant 6,853,604 - Spackman , et al. February 8, 2 | 2005-02-08 |
| Solid marine seismic cable App 20030198133 - Spackman, James ; et al. | 2003-10-23 |
| Seismic sensor array with electrical to optical transformers Grant 6,256,588 - Maida, Jr. , et al. July 3, 2 | 2001-07-03 |
| Seismic sensor array with electrical-to optical transformers Grant 6,188,645 - Maida, Jr. , et al. February 13, 2 | 2001-02-13 |
| Optical sensor Grant 6,160,762 - Luscombe , et al. December 12, 2 | 2000-12-12 |
| Hydrophone with ferroelectric sensor Grant 6,151,277 - Erath , et al. November 21, 2 | 2000-11-21 |
| Solid marine seismic cable Grant 6,128,251 - Erath , et al. October 3, 2 | 2000-10-03 |
| Magnetic drive subassembly in a depth control device Grant 6,031,789 - Broussard , et al. February 29, 2 | 2000-02-29 |
| Differential pressure applanation tonometer Grant 4,860,755 - Erath August 29, 1 | 1989-08-29 |
| Infrared gas detector Grant 4,694,174 - Erath September 15, 1 | 1987-09-15 |
| Method and apparatus for measuring the quality of insulation on a buried pipeline and the quantity of metal oxide present at breaks in the insulation Grant 4,099,117 - Erath July 4, 1 | 1978-07-04 |
| Capacitance Sensing Apparatus Grant 3,863,147 - Erath January 28, 1 | 1975-01-28 |
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