RW

Roger W. Ward

QU Quartztronics: 10 patents #1 of 4Top 25%
HA Halliburton: 3 patents #227 of 857Top 30%
DF Delaware Capital Formation: 1 patents #262 of 626Top 45%
QU Quartzdyne: 1 patents #9 of 19Top 50%
UA US Army: 1 patents #2,720 of 6,974Top 40%
Overall (All Time): #302,879 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6131462 Pressure/temperature transducer with improved thermal coupling and enhanced transient response Errol P. EerNisse, Lon J. Perry, Robert B. Wiggins 2000-10-17
5231880 Pressure transducer assembly Robert B. Wiggins 1993-08-03
5168191 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Errol P. EerNisse, O. Lew Wood 1992-12-01
5022130 Method of manufacturing crystal resonators having low acceleration sensitivity Errol P. EerNisse, O. Lew Wood 1991-06-11
5012151 Thermally matched strip mounted resonator and related mounting method Errol P. EerNisse 1991-04-30
4936147 Transducer and sensor apparatus and method Errol P. EerNisse 1990-06-26
4935658 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Errol P. EerNisse, O. Lew Wood 1990-06-19
4837475 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Errol P. EerNisse 1989-06-06
4802370 Transducer and sensor apparatus and method Errol P. EerNisse 1989-02-07
4754646 Resonator pressure transducer structure and method of manufacture Errol P. EerNisse 1988-07-05
4644796 Pressure measurement apparatus and method 1987-02-24
4644803 Force measurement apparatus and method 1987-02-24
4574639 Pressure force measurement apparatus and method 1986-03-11
4535638 Resonator transducer system with temperature compensation Errol P. EerNisse 1985-08-20
4526480 Fluid density temperature measurement apparatus and method 1985-07-02
4412345 Apparatus and method for precise determinations of crystallographic orientation in crystalline substances S. Thomas Workman, John L. Chambers, Myron A. Pugh 1983-10-25