Inventor · disambiguated record
Gerald E. Roberts
Also filed as: ROBERTS GERALD · ROBERTS GERALD E
20 granted patents·364 citations·filing 1974–1998
95Inventor score
Files withGEN ELECTRIC10ERICSSON GE MOBILE COMMUNICAT4ERICSSON INC2XTAL TECHNOLOGIES LTD2LA Z BOY CHAIR CO1
Top patents by PatentIndex Score
20 records- 0186US5217276AChair mechanismLA Z BOY CHAIR CO·Filed 1991·Granted Jun 8, 1993·72 cites·21 claims
- 0281US6453157B1Radio frequency tracking filterERICSSON INC·Filed 1998·Granted Sep 17, 2002·66 cites·29 claims
- 0374US3992760AApparatus and process for measuring the resonant frequency and coefficient of coupling of a plurality of coupled piezoelectric resonatorsGEN ELECTRIC·Filed 1976·Granted Nov 23, 1976·16 cites·1 claims
- 0471US5795028AModular chair and methodLA Z BOY INC·Filed 1996·Granted Aug 18, 1998·54 cites·30 claims
- 0571US3963982AApparatus for measuring the resonant frequency and coefficient of coupling of a plurality of coupled piezoelectric resonatorsGEN ELECTRIC·Filed 1974·Granted Jun 15, 1976·17 cites·5 claims
- 0665US4484158AMonolithic crystal filter and method of manufacturing sameGEN ELECTRIC·Filed 1982·Granted Nov 20, 1984·21 cites·26 claims
- 0762US4093914AMethod of measuring parameters of a crystal filterGEN ELECTRIC·Filed 1977·Granted Jun 6, 1978·17 cites·9 claims
- 0851US4839618AMonolithic crystal filter with wide bandwidth and method of making sameGEN ELECTRIC·Filed 1987·Granted Jun 13, 1989·11 cites·12 claims
- 0949US4477952APiezoelectric crystal electrodes and method of manufactureGEN ELECTRIC·Filed 1983·Granted Oct 23, 1984·12 cites·3 claims
- 1048US4833430ACoupled-dual resonator crystalGEN ELECTRIC·Filed 1987·Granted May 23, 1989·12 cites·3 claims
- 1147US4627379AShutter apparatus for fine-tuning a coupled-dual resonator crystalGEN ELECTRIC·Filed 1984·Granted Dec 9, 1986·8 cites·13 claims
- 1242US4676993AMethod and apparatus for selectively fine-tuning a coupled-dual resonator crystal and crystal manufactured therebyGEN ELECTRIC·Filed 1986·Granted Jun 30, 1987·9 cites·22 claims
- 1340US5272597AAttachment for surface-mounting a resonator crystal on a circuit boardERICSSON GE MOBILE COMMUNICAT·Filed 1992·Granted Dec 21, 1993·10 cites·20 claims
- 1438US6219531B1Architecture and frequency plan for a UHF portable radioERICSSON INC·Filed 1998·Granted Apr 17, 2001·12 cites·21 claims
- 1533US5587663AMethod for measuring the inductance of each resonator of a coupled-dual resonator crystalXTAL TECHNOLOGIES LTD·Filed 1995·Granted Dec 24, 1996·6 cites·23 claims
- 1632US5146174ASwitching arrangement method and apparatus for making parameter measurement and adjustment of coupled dual resonator crystals using both resonator portsERICSSON GE MOBILE COMMUNICAT·Filed 1991·Granted Sep 8, 1992·7 cites·16 claims
- 1732US5049828AMethod and apparatus for parameter measurement of coupled-dual resonator crystalsERICSSON GE MOBILE COMMUNICAT·Filed 1990·Granted Sep 17, 1991·4 cites·14 claims
- 1830US5594354AMethod for measuring selected frequencies of a coupled-dual resonator crystalXTAL TECHNOLOGIES LTD·Filed 1995·Granted Jan 14, 1997·4 cites·11 claims
- 1930US4433316ACrystal filter and method for fabricationGEN ELECTRIC·Filed 1981·Granted Feb 21, 1984·3 cites·10 claims
- 2023US5047726AMethod and apparatus for implementing four-frequency measuring process for coupled-dual resonator crystals using both resonator portsERICSSON GE MOBILE COMMUNICAT·Filed 1990·Granted Sep 10, 1991·3 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →