Assignee
NAT RES DEV
GB·1,186 granted patents·1 pending application·36,535 citations·filing 1969–2008
Top patents by PatentIndex Score
1,187 records- 0198US4318784AEnzymatic processesNAT RES DEV·Filed 1980·Granted Mar 9, 1982·334 cites·13 claims
- 0298US4128137APeripatetic vehiclesNAT RES DEV·Filed 1977·Granted Dec 5, 1978·152 cites·11 claims
- 0398US4085466AProsthetic joint deviceNAT RES DEV·Filed 1977·Granted Apr 25, 1978·937 cites·11 claims
- 0498US4024163AInsecticidesNAT RES DEV·Filed 1974·Granted May 17, 1977·191 cites·34 claims
- 0597US4877516AManipulating particulate matterNAT RES DEV·Filed 1987·Granted Oct 31, 1989·146 cites·19 claims
- 0697US4447608AAnti-cancer quinazoline derivativesNAT RES DEV·Filed 1982·Granted May 8, 1984·95 cites·7 claims
- 0797US4405249ADispensing apparatus and methodNAT RES DEV·Filed 1981·Granted Sep 20, 1983·129 cites·7 claims
- 0897US4346205AEnergy absorbing elastomers and compositesNAT RES DEV·Filed 1980·Granted Aug 24, 1982·137 cites·24 claims
- 0997US4204283AProsthetic valveNAT RES DEV·Filed 1978·Granted May 27, 1980·262 cites·11 claims
- 1097US4167662AMethods and apparatus for cutting and weldingNAT RES DEV·Filed 1978·Granted Sep 11, 1979·99 cites·33 claims
- 1197US4042779ACoincident microphone simulation covering three dimensional space and yielding various directional outputsNAT RES DEV·Filed 1975·Granted Aug 16, 1977·98 cites·8 claims
- 1297US3941790ABis diketopiperazinesNAT RES DEV·Filed 1974·Granted Mar 2, 1976·72 cites·7 claims
- 1396US5006266AManipulating means utilizing ultrasonic wave energy for use with particulate materialNAT RES DEV·Filed 1988·Granted Apr 9, 1991·141 cites·19 claims
- 1496US4798850ABlended-fibre filter materialNAT RES DEV·Filed 1987·Granted Jan 17, 1989·198 cites·16 claims
- 1596US4459267APipette meansNAT RES DEV·Filed 1982·Granted Jul 10, 1984·83 cites·12 claims
- 1696US4237006ACyclone separatorNAT RES DEV·Filed 1979·Granted Dec 2, 1980·91 cites·19 claims
- 1796US4209434ADental cement containing poly(carboxylic acid), chelating agent and glass cement powderNAT RES DEV·Filed 1977·Granted Jun 24, 1980·236 cites·22 claims
- 1896US4143018ACementsNAT RES DEV·Filed 1975·Granted Mar 6, 1979·157 cites·22 claims
- 1996US4115730ANuclear magnetic resonance apparatus and methodsNAT RES DEV·Filed 1977·Granted Sep 19, 1978·93 cites·9 claims
- 2096US3977289ASaws and blades thereforNAT RES DEV·Filed 1975·Granted Aug 31, 1976·112 cites·2 claims
- 2195US5147646AHydrogel containing envelopesNAT RES DEV·Filed 1991·Granted Sep 15, 1992·87 cites·14 claims
- 2295US5104865AIron complexes of hydroxypyridones useful for treating iron overloadNAT RES DEV·Filed 1989·Granted Apr 14, 1992·46 cites·27 claims
- 2395US4787927AFabrication of optical fibersNAT RES DEV·Filed 1986·Granted Nov 29, 1988·69 cites·8 claims
- 2495US4665064APharmaceutical compositions and methods for increasing zinc levelsNAT RES DEV·Filed 1984·Granted May 12, 1987·36 cites·67 claims
- 2595US4369664APipette meansNAT RES DEV·Filed 1980·Granted Jan 25, 1983·69 cites·6 claims
- 2695US4287141AEmbankments constructionNAT RES DEV·Filed 1979·Granted Sep 1, 1981·70 cites·15 claims
- 2795US4160971ATranspondersNAT RES DEV·Filed 1976·Granted Jul 10, 1979·164 cites·33 claims
- 2895US4135505AOrthopaedic fracture fixing apparatusNAT RES DEV·Filed 1977·Granted Jan 23, 1979·133 cites·6 claims
- 2995US4044203AActive control of sound wavesNAT RES DEV·Filed 1975·Granted Aug 23, 1977·93 cites·10 claims
- 3094US4912118APharmaceutical compositionsNAT RES DEV·Filed 1986·Granted Mar 27, 1990·44 cites·23 claims
- 3194US4879011AProcess for controlling a reaction by ultrasonic standing waveNAT RES DEV·Filed 1988·Granted Nov 7, 1989·102 cites·19 claims
- 3294US4666927APharmaceutical compositions of hydroxypyridonesNAT RES DEV·Filed 1984·Granted May 19, 1987·54 cites·19 claims
- 3394US4628766AContinuously-variable ratio transmissionNAT RES DEV·Filed 1984·Granted Dec 16, 1986·119 cites·4 claims
- 3494US4592369AMethod and apparatus for use in temporal analysis of waveformsNAT RES DEV·Filed 1983·Granted Jun 3, 1986·235 cites·10 claims
- 3594US4585780APharmaceutical compositionsNAT RES DEV·Filed 1984·Granted Apr 29, 1986·53 cites·34 claims
- 3694US4584188AHydrogelsNAT RES DEV·Filed 1984·Granted Apr 22, 1986·60 cites·12 claims
- 3794US4564616AAnti-cancer quinazoline derivativesNAT RES DEV·Filed 1984·Granted Jan 14, 1986·40 cites·15 claims
- 3894US4441489AOrthopaedic splintsNAT RES DEV·Filed 1982·Granted Apr 10, 1984·270 cites·9 claims
- 3994US4371345AMulti-dimensional display equipmentNAT RES DEV·Filed 1979·Granted Feb 1, 1983·86 cites·23 claims
- 4094US4310799ACoil winding for quadrupolar fieldsNAT RES DEV·Filed 1979·Granted Jan 12, 1982·50 cites·7 claims
- 4194US4297918AControl systems for steplessly-variable ratio transmissionsNAT RES DEV·Filed 1979·Granted Nov 3, 1981·53 cites·6 claims
- 4294US4191187AMedical apparatusNAT RES DEV·Filed 1978·Granted Mar 4, 1980·94 cites·10 claims
- 4394US4172574AFluid stream deflecting members for aircraft bodies or the likeNAT RES DEV·Filed 1977·Granted Oct 30, 1979·106 cites·11 claims
- 4494US4165479ANuclear magnetic resonance apparatus and methodsNAT RES DEV·Filed 1977·Granted Aug 21, 1979·70 cites·21 claims
- 4593US5157345AApparatus and method for reducing distortion in amplificationNAT RES DEV·Filed 1991·Granted Oct 20, 1992·82 cites·26 claims
- 4693US4882166ACompositions comprising encapsulated particles and their preparationNAT RES DEV·Filed 1987·Granted Nov 21, 1989·104 cites·40 claims
- 4793US4590748AMachine for and method of packaging articles or goodsNAT RES DEV·Filed 1984·Granted May 27, 1986·84 cites·5 claims
- 4893US4545616AMobile chair with elevating seatNAT RES DEV·Filed 1984·Granted Oct 8, 1985·90 cites·4 claims
- 4993US4438258AHydrogelsNAT RES DEV·Filed 1982·Granted Mar 20, 1984·113 cites·32 claims
- 5093US4287808ADrive mechanismNAT RES DEV·Filed 1976·Granted Sep 8, 1981·82 cites·15 claims
Showing the top 50 of 1,187 patent records by PatentIndex Score.
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