Assignee
KOH I NOOR RAPIDOGRAPH
US·54 granted patents·990 citations·filing 1974–1990
Top patents by PatentIndex Score
54 records- 0197US4891245AElectrophoretic display particles and a process for their preparationKOH I NOOR RAPIDOGRAPH·Filed 1986·Granted Jan 2, 1990·142 cites·10 claims
- 0294USD286164SWriting penKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Oct 14, 1986·35 cites·1 claims
- 0393USD287603SWriting penKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Jan 6, 1987·36 cites·1 claims
- 0490US4665107APigment encapsulated latex aqueous colorant dispersionsKOH I NOOR RAPIDOGRAPH·Filed 1986·Granted May 12, 1987·123 cites·34 claims
- 0587US4753546APressure balanced stylographic penKOH I NOOR RAPIDOGRAPH·Filed 1981·Granted Jun 28, 1988·52 cites·8 claims
- 0684USD257857SDrawing penKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Jan 13, 1981·20 cites·1 claims
- 0784USD249887SStylographic penKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Oct 10, 1978·22 cites·1 claims
- 0884US4032627ATooth whitening cosmetic compositionKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Jun 28, 1977·101 cites·8 claims
- 0980US4382707AFelt tip writing penKOH I NOOR RAPIDOGRAPH·Filed 1981·Granted May 10, 1983·33 cites·5 claims
- 1079USD284582SFountain pen for artists and calligraphers or the likeKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Jul 8, 1986·16 cites·1 claims
- 1176US4669617APen holder deviceKOH I NOOR RAPIDOGRAPH·Filed 1985·Granted Jun 2, 1987·40 cites·19 claims
- 1274US4173021ASealing element for an automatic drafting penKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Oct 30, 1979·20 cites·7 claims
- 1369USD251977SDual cosmetic pencil sharpenerKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted May 29, 1979·13 cites·1 claims
- 1466US4207012AInk compensating chamber for scriberKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Jun 10, 1980·19 cites·6 claims
- 1564US4356632AWriting apparatusKOH I NOOR RAPIDOGRAPH·Filed 1980·Granted Nov 2, 1982·13 cites·6 claims
- 1662USD253180SCombined drafting pen holder and containerKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Oct 16, 1979·7 cites·1 claims
- 1761US4496958ADrawing pen exchanger for computer controlled drawing machinesKOH I NOOR RAPIDOGRAPH·Filed 1982·Granted Jan 29, 1985·19 cites·6 claims
- 1859US4217058AReservoir cartridge for writing pensKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Aug 12, 1980·15 cites·2 claims
- 1959US3950762ADrawing method and drawing instrumentKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Apr 13, 1976·13 cites·15 claims
- 2057US4558966AWriting instrument with sealing capKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Dec 17, 1985·17 cites·9 claims
- 2157US4548325ATechnical pen holderKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Oct 22, 1985·17 cites·3 claims
- 2257US4282536AProcess and apparatus for automatic drafting devicesKOH I NOOR RAPIDOGRAPH·Filed 1980·Granted Aug 4, 1981·16 cites·6 claims
- 2357US4188634AMethod for regulating ink flow in drafting pensKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Feb 12, 1980·8 cites·8 claims
- 2457US4086011ASealing gasket for a capillary pen coverKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Apr 25, 1978·14 cites·6 claims
- 2556US3964926ACleansing receptacle for capillary writing pen partsKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Jun 22, 1976·19 cites·5 claims
- 2652US4346445APortable alphanumeric and symbol drafting deviceKOH I NOOR RAPIDOGRAPH·Filed 1980·Granted Aug 24, 1982·11 cites·19 claims
- 2750USD254316SInk cartridge with rupturable sealing elementKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Feb 26, 1980·4 cites·1 claims
- 2850US4130444ADevice for cleaning ink pen pointsKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Dec 19, 1978·9 cites·5 claims
- 2949US4374565AStand for writing devicesKOH I NOOR RAPIDOGRAPH·Filed 1980·Granted Feb 22, 1983·13 cites·5 claims
- 3046US4761090ATubular writing pen tip with adjustment meansKOH I NOOR RAPIDOGRAPH·Filed 1986·Granted Aug 2, 1988·13 cites·14 claims
- 3144US4930921ATubular writting pen with superposed pressure equalization chambersKOH I NOOR RAPIDOGRAPH·Filed 1988·Granted Jun 5, 1990·9 cites·9 claims
- 3243US3977798ATubular writing penKOH I NOOR RAPIDOGRAPH·Filed 1974·Granted Aug 31, 1976·8 cites·1 claims
- 3339US4573503AInk dropper closureKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Mar 4, 1986·6 cites·7 claims
- 3439US3963359AProtective screw cap for the writing point of a tube writing penKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Jun 15, 1976·5 cites·8 claims
- 3537US4459602AAutomatic drafting apparatusKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Jul 10, 1984·6 cites·5 claims
- 3636US4106031AAutomatic drafting deviceKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Aug 8, 1978·4 cites·10 claims
- 3735US4913283ACase for drawing boardsKOH I NOOR RAPIDOGRAPH·Filed 1988·Granted Apr 3, 1990·20 cites·11 claims
- 3835US4552483ADevice for covering an oblong opening in a housingKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Nov 12, 1985·5 cites·4 claims
- 3935US4074414AProcess for the production of lettering or symbol templatesKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Feb 21, 1978·4 cites·6 claims
- 4034US4662769ATubular writing pen tip with adjustment meansKOH I NOOR RAPIDOGRAPH·Filed 1985·Granted May 5, 1987·7 cites·15 claims
- 4134US4489333ADevice for exchanging objects in particular writing instrumentsKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Dec 18, 1984·5 cites·14 claims
- 4232US4102584ACapillary tube pen pointKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Jul 25, 1978·2 cites·6 claims
- 4331US4103999ARupturable sealing element within an ink reservoir cartridgeKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Aug 1, 1978·1 cites·1 claims
- 4431US4095907ACover for scriberKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Jun 20, 1978·3 cites·2 claims
- 4528US5004365ADrop-weight and tubular writing instrumentKOH I NOOR RAPIDOGRAPH·Filed 1990·Granted Apr 2, 1991·3 cites·14 claims
- 4628US3955894ATubular writing penKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted May 11, 1976·0 cites·9 claims
- 4727US4833490AWriting element with exchange mechanismKOH I NOOR RAPIDOGRAPH·Filed 1987·Granted May 23, 1989·5 cites·3 claims
- 4827US4769914ALettering deviceKOH I NOOR RAPIDOGRAPH·Filed 1987·Granted Sep 13, 1988·3 cites·14 claims
- 4926US4729685AWriting instrument with press mechanism and magnetic catchKOH I NOOR RAPIDOGRAPH·Filed 1987·Granted Mar 8, 1988·5 cites·20 claims
- 5026US4019243AMethod for forming a tubular writing penKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Apr 26, 1977·0 cites·5 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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