Inventor
Louis W. Erath
Inventor
Abbeville, LA, US
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics26%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves16%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general11%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
G10KSound-producing devices8%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock5%
H04BTransmission5%
A61BDiagnosis3%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
PatentTitleYear
6,853,604'Solid marine seismic cable'20056,256,588'Seismic sensor array with electrical to optical transformers'20016,188,645'Seismic sensor array with electrical-to optical transformers'20016,188,646'Hydrophone carrier'20016,161,433'Fiber optic geophone'20006,160,762'Optical sensor'20006,151,277'Hydrophone with ferroelectric sensor'20006,128,251'Solid marine seismic cable'20006,088,299'Vertical hydrophone array'20006,049,511'High sensitivity fiber optic hydrophone'20006,031,789'Magnetic drive subassembly in a depth control device'20005,815,466'Hydrophone structure with reverse bend of piezoelectric element'19985,726,396'Folded acoustical horn'19985,677,894'Hydrophone structure with center pin'19975,675,556'Hydrophone structure and method'19975,663,931'Segmentation and polarization in a hydrophone crystal'19975,541,894'Low distortion hydrophone'19965,086,473'Feedback system for a sub-woofer loudspeaker'19924,860,755'Differential pressure applanation tonometer'19894,694,174'Infrared gas detector'19874,099,117'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'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Based in Houston, TX, US· patent location history
1987Patents assigned to GAS ALARM SERVICE INC (1)· patent assignee history
1987–2005Based in Abbeville, LA, US· patent location history
1989Patents assigned to ERATH YOUNG INSTR COMPANY INC (1)· patent assignee history
1992Patents assigned to ERATH LOUIS W (1)· patent assignee history
1996–2001Patents assigned to SYNTRON INC (9)· patent assignee history
2000–2001Patents assigned to GEOSENSOR CORP (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SYNTRON INC | 9 | 1996–2001 |
| GEOSENSOR CORP | 5 | 2000–2001 |
| ERATH LOUIS Wself | 1 | 1992 |
| ERATH YOUNG INSTR COMPANY INC | 1 | 1989 |
| GAS ALARM SERVICE INC | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Abbeville, LA, US | 20 | 1987–2005 |
| Houston, Texas, US | 1 | 1978 |