DC

David H. Crowne

SP Simmonds Precision Products: 20 patents #6 of 227Top 3%
Overall (All Time): #215,198 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12339153 Optical fabry-perot based liquid level sensors 2025-06-24
12298199 Sliding discrete Fourier transform (DFT) bins for fuel quantity measurements Aswin Kumar Vallamkondu, Prashant Vadgaonkar, Venkata Sai Sudheer Kumar 2025-05-13
12025482 Contamination detection for optical pressure sensors 2024-07-02
12009812 Optically switched IGBT Richard A. Poisson, Scott R. Durkee 2024-06-11
11585712 Fiber optic load sensors and systems therefor Peter J. Carini 2023-02-21
11333556 Wavelength determination using an optical filter having complementary transmission and reflection coefficients Tyler Arsenault, Peter J. Carini 2022-05-17
10641673 Optically powered remotely interrogated liquid gauging system 2020-05-05
10598537 Systems and methods for liquid level detection with optoelectronic interfaced dual thermistor bead sensor 2020-03-24
10442545 Liquid measurement system for a tank Charles Jeff Allred 2019-10-15
10281329 Method and system for fast determination of the wavelength of a light beam 2019-05-07
9909967 Fuel density determination Gary M. McBrien 2018-03-06
9793991 Optically interfaced remote data concentrator 2017-10-17
7360294 Method of assembling an inductive proximity sensor Robert Downing LaClair, Christopher Spagnoletti, Eric Carter 2008-04-22
7170385 Inductive proximity sensor and method of assembling the same Robert Downing LaClair, Christopher Spagnoletti, Eric Carter 2007-01-30
5814830 Liquid gauging apparatus with a magnetoresistive sensor and remote sensor interrogration 1998-09-29
5723870 Fluid gauging apparatus using magnetostrictive sensor and stick gauge Lisa B. Maurice, Frederick L. Lichtenfels, II, Kip Joseph Freeman 1998-03-03
5627380 Fluid gauging apparatus using integral electrical sensor and a stick gauge 1997-05-06
5530258 Liquid gauging apparatus and remote sensor interrogation 1996-06-25
5399875 Liquid gauging apparatus and remote sensor interrogation 1995-03-21
5266792 Temperature compensated optical detector William B. Spillman, Jr. 1993-11-30