Assignee
WATKINS JOHNSON CO
US·77 granted patents·5,438 citations·filing 1972–1998
Top patents by PatentIndex Score
77 records- 0199US4993358AChemical vapor deposition reactor and method of operationWATKINS JOHNSON CO·Filed 1989·Granted Feb 19, 1991·369 cites·29 claims
- 0297US6001267APlasma enchanced chemical methodWATKINS JOHNSON CO·Filed 1997·Granted Dec 14, 1999·531 cites·20 claims
- 0397US5809422ADistributed microcellular communications systemWATKINS JOHNSON CO·Filed 1996·Granted Sep 15, 1998·351 cites·14 claims
- 0497US5792272APlasma enhanced chemical processing reactor and methodWATKINS JOHNSON CO·Filed 1997·Granted Aug 11, 1998·681 cites·39 claims
- 0596US5851294AGas injection system for semiconductor processingWATKINS JOHNSON CO·Filed 1997·Granted Dec 22, 1998·621 cites·22 claims
- 0695US5059770AMulti-zone planar heater assembly and method of operationWATKINS JOHNSON CO·Filed 1989·Granted Oct 22, 1991·155 cites·25 claims
- 0792US4834020AAtmospheric pressure chemical vapor deposition apparatusWATKINS JOHNSON CO·Filed 1987·Granted May 30, 1989·164 cites·5 claims
- 0891US5136975AInjector and method for delivering gaseous chemicals to a surfaceWATKINS JOHNSON CO·Filed 1990·Granted Aug 11, 1992·123 cites·15 claims
- 0991US4737123AConnector assembly for packaged microwave integrated circuitsWATKINS JOHNSON CO·Filed 1987·Granted Apr 12, 1988·132 cites·2 claims
- 1090US5678226AUnbalanced FET mixerWATKINS JOHNSON CO·Filed 1994·Granted Oct 14, 1997·114 cites·7 claims
- 1190US5122391AMethod for producing highly conductive and transparent films of tin and fluorine doped indium oxide by APCVDWATKINS JOHNSON CO·Filed 1991·Granted Jun 16, 1992·93 cites·8 claims
- 1289US6064872ATotem pole mixer having grounded serially connected stacked FET pairWATKINS JOHNSON CO·Filed 1997·Granted May 16, 2000·107 cites·20 claims
- 1388US4787813AIndustrial robot for use in clean room environmentWATKINS JOHNSON CO·Filed 1987·Granted Nov 29, 1988·62 cites·9 claims
- 1486US5838528AElectrostatic chuck assemblyWATKINS JOHNSON CO·Filed 1997·Granted Nov 17, 1998·81 cites·13 claims
- 1586US5683516ASingle body injector and method for delivering gases to a surfaceWATKINS JOHNSON CO·Filed 1996·Granted Nov 4, 1997·67 cites·26 claims
- 1686US5454928AProcess for forming solid conductive vias in substratesWATKINS JOHNSON CO·Filed 1994·Granted Oct 3, 1995·109 cites·7 claims
- 1783US5304398AChemical vapor deposition of silicon dioxide using hexamethyldisilazaneWATKINS JOHNSON CO·Filed 1993·Granted Apr 19, 1994·67 cites·5 claims
- 1882US3980919ARectangular beam laminar flow electron gunWATKINS JOHNSON CO·Filed 1974·Granted Sep 14, 1976·21 cites·6 claims
- 1980US5708556AElectrostatic chuck assemblyWATKINS JOHNSON CO·Filed 1995·Granted Jan 13, 1998·56 cites·26 claims
- 2080US4965539AMicrowave notch filter using pin diode shunted YIG resonatorsWATKINS JOHNSON CO·Filed 1989·Granted Oct 23, 1990·35 cites·7 claims
- 2179US6023622AWireless communication system with dynamic channel allocationWATKINS JOHNSON CO·Filed 1997·Granted Feb 8, 2000·112 cites·6 claims
- 2278US5986874AElectrostatic support assembly having an integral ion focus ringWATKINS JOHNSON CO·Filed 1997·Granted Nov 16, 1999·68 cites·29 claims
- 2378US5849088AFree floating shieldWATKINS JOHNSON CO·Filed 1998·Granted Dec 15, 1998·46 cites·29 claims
- 2478US5361409AFET mixer having transmission line transformerWATKINS JOHNSON CO·Filed 1993·Granted Nov 1, 1994·38 cites·11 claims
- 2577US5768268AWideband base station architecture for digital cellular communications systemWATKINS JOHNSON CO·Filed 1995·Granted Jun 16, 1998·95 cites·18 claims
- 2677US5300900AHigh-frequency limiter and switch-limiter circuit having improved recovery timeWATKINS JOHNSON CO·Filed 1992·Granted Apr 5, 1994·35 cites·17 claims
- 2776US5232145AMethod of soldering in a controlled-convection surface-mount reflow furnaceWATKINS JOHNSON CO·Filed 1991·Granted Aug 3, 1993·66 cites·6 claims
- 2876US5175518AWide percentage bandwidth microwave filter network and method of manufacturing sameWATKINS JOHNSON CO·Filed 1991·Granted Dec 29, 1992·31 cites·6 claims
- 2974US4328466AElectron bombarded semiconductor device with doubly-distributed deflection meansWATKINS JOHNSON CO·Filed 1972·Granted May 4, 1982·15 cites·26 claims
- 3072US5629654ACoplanar waveguide couplerWATKINS JOHNSON CO·Filed 1996·Granted May 13, 1997·32 cites·4 claims
- 3172US5613859AConnector asembly for detachably connecting a printed wiring board to a coaxial transmission lines connectorWATKINS JOHNSON CO·Filed 1995·Granted Mar 25, 1997·21 cites·4 claims
- 3271US5113789ASelf cleaning flow control orificeWATKINS JOHNSON CO·Filed 1990·Granted May 19, 1992·29 cites·17 claims
- 3370US5752181AMethod and apparatus for reducing inermodulation distortion in a mixerWATKINS JOHNSON CO·Filed 1995·Granted May 12, 1998·25 cites·20 claims
- 3470US5078922ALiquid source bubblerWATKINS JOHNSON CO·Filed 1990·Granted Jan 7, 1992·47 cites·13 claims
- 3570US4965967AApparatus for low stress polishing of spherical objectsWATKINS JOHNSON CO·Filed 1989·Granted Oct 30, 1990·19 cites·15 claims
- 3667US4752746AWideband microwave matrix amplifierWATKINS JOHNSON CO·Filed 1987·Granted Jun 21, 1988·26 cites·8 claims
- 3767US4455448AHousing for microwave electronic devicesWATKINS JOHNSON CO·Filed 1981·Granted Jun 19, 1984·34 cites·6 claims
- 3866US5854974ACompensated ring mixersWATKINS JOHNSON CO·Filed 1995·Granted Dec 29, 1998·28 cites·39 claims
- 3966US5799248AQuasi-double balanced passive reflection FET mixerWATKINS JOHNSON CO·Filed 1995·Granted Aug 25, 1998·28 cites·24 claims
- 4066US5513390ABiased FET mixerWATKINS JOHNSON CO·Filed 1993·Granted Apr 30, 1996·27 cites·20 claims
- 4163US5170142ARadio frequency feedthrough seal and methodWATKINS JOHNSON CO·Filed 1991·Granted Dec 8, 1992·23 cites·7 claims
- 4261US6131031ASystem and method for an underlay cellular systemWATKINS JOHNSON CO·Filed 1997·Granted Oct 10, 2000·66 cites·27 claims
- 4361US5652179AMethod of fabricating sub-micron gate electrode by angle and direct evaporationWATKINS JOHNSON CO·Filed 1996·Granted Jul 29, 1997·37 cites·23 claims
- 4461US5029471ALiquid level sensor assemblyWATKINS JOHNSON CO·Filed 1990·Granted Jul 9, 1991·27 cites·2 claims
- 4560US5117068ASurface mount package for R.F. devicesWATKINS JOHNSON CO·Filed 1990·Granted May 26, 1992·40 cites·8 claims
- 4659US5823791AConnector assembly for detachably connecting a printed wiring board to a coaxial transmission lines connectorWATKINS JOHNSON CO·Filed 1996·Granted Oct 20, 1998·12 cites·8 claims
- 4759US5732345AQuasi-double balanced dual-transformer dual FET mixer, which achieves better isolation by using a first and second diplexer, and a transmission line RF balunWATKINS JOHNSON CO·Filed 1995·Granted Mar 24, 1998·21 cites·20 claims
- 4859US5341110ALow phase noise reference oscillatorWATKINS JOHNSON CO·Filed 1993·Granted Aug 23, 1994·23 cites·15 claims
- 4958US5668063AMethod of planarizing a layer of materialWATKINS JOHNSON CO·Filed 1995·Granted Sep 16, 1997·37 cites·21 claims
- 5058US4891247AProcess for borosilicate glass films for multilevel metallization structures in semiconductor devicesWATKINS JOHNSON CO·Filed 1988·Granted Jan 2, 1990·25 cites·5 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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