EE

Errol P. EerNisse

QU Quartztronics: 8 patents #2 of 4Top 50%
QU Quartex: 4 patents #1 of 9Top 15%
HA Halliburton: 3 patents #227 of 857Top 30%
QU Quartzdyne: 3 patents #3 of 19Top 20%
DF Delaware Capital Formation: 2 patents #143 of 626Top 25%
OS Ohaus Scale: 2 patents #2 of 17Top 15%
Overall (All Time): #196,144 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10408699 Quartz resonator pressure transducers and methods of operation Milton Watts 2019-09-10
10048146 Thickness shear mode resonator sensors and methods of forming a plurality of resonator sensors Derek Puccio 2018-08-14
9528896 Quartz resonator pressure transducers and methods of operation Milton Watts 2016-12-27
9038263 Thickness shear mode resonator sensors and methods of forming a plurality of resonator sensors Derek Puccio 2015-05-26
6131462 Pressure/temperature transducer with improved thermal coupling and enhanced transient response Lon J. Perry, Roger W. Ward, Robert B. Wiggins 2000-10-17
5168191 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Roger W. Ward, O. Lew Wood 1992-12-01
5030876 Mounting structure for crystal resonator 1991-07-09
5022130 Method of manufacturing crystal resonators having low acceleration sensitivity Roger W. Ward, O. Lew Wood 1991-06-11
5012151 Thermally matched strip mounted resonator and related mounting method Roger W. Ward 1991-04-30
4936147 Transducer and sensor apparatus and method Roger W. Ward 1990-06-26
4935658 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Roger W. Ward, O. Lew Wood 1990-06-19
4837475 Crystal resonator with low acceleration sensitivity and method of manufacture thereof Roger W. Ward 1989-06-06
4802370 Transducer and sensor apparatus and method Roger W. Ward 1989-02-07
4754646 Resonator pressure transducer structure and method of manufacture Roger W. Ward 1988-07-05
4724351 Double resonating beam force transducer with reduced longitudinal pumping Walter P. Kistler 1988-02-09
4592663 Resonator temperature transducer Robert B. Wiggins 1986-06-03
4550610 Resonator pressure transducer 1985-11-05
4535638 Resonator transducer system with temperature compensation Roger W. Ward 1985-08-20
4531073 Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity 1985-07-23
4526247 Weighing scale transducer Mark D. Gaiser, John P. Hanley, Walter P. Kistler, Jerome M. Paros, Robert B. Wiggins 1985-07-02
4479391 Resonator force transducer assembly Gary J. Banik, Walter P. Kistler, Jerome M. Paros 1984-10-30
4372173 Resonator force transducer Jerome M. Paros 1983-02-08