Inventor · disambiguated record
Gerold Anderka
Also filed as: ANDERKA GEROLD · ANDERKA GEROLD D
27 granted patents·279 citations·filing 1975–2001
96Inventor score
Files withKOH I NOOR RAPIDOGRAPH17ANDERKA GEROLD2MESNE KOH I NOOR RAPIDOGRAPH I2ROTRING WERKE RIEPE KG2SANFORD LP2
Top patents by PatentIndex Score
27 records- 0184USD249887SStylographic penKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Oct 10, 1978·22 cites·1 claims
- 0280US4382707AFelt tip writing penKOH I NOOR RAPIDOGRAPH·Filed 1981·Granted May 10, 1983·33 cites·5 claims
- 0378US4854205ASign cutting deviceROTRING WERKE RIEPE KG·Filed 1988·Granted Aug 8, 1989·33 cites·32 claims
- 0472US6322269B1Free ink systemSANFORD LP·Filed 2000·Granted Nov 27, 2001·14 cites·24 claims
- 0565US6632041B1Free ink systemSANFORD LP·Filed 2001·Granted Oct 14, 2003·9 cites·24 claims
- 0664US4356632AWriting apparatusKOH I NOOR RAPIDOGRAPH·Filed 1980·Granted Nov 2, 1982·13 cites·6 claims
- 0763US6106180AHandwriting or ink applying deviceFiled 1999·Granted Aug 22, 2000·16 cites·5 claims
- 0862USD253180SCombined drafting pen holder and containerKOH I NOOR RAPIDOGRAPH·Filed 1977·Granted Oct 16, 1979·7 cites·1 claims
- 0961US4496958ADrawing pen exchanger for computer controlled drawing machinesKOH I NOOR RAPIDOGRAPH·Filed 1982·Granted Jan 29, 1985·19 cites·6 claims
- 1059US3950762ADrawing method and drawing instrumentKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Apr 13, 1976·13 cites·15 claims
- 1158US4097874ABlocking assembly for an automatic drafting deviceMESNE KOH I NOOR RAPIDOGRAPH I·Filed 1977·Granted Jun 27, 1978·11 cites·17 claims
- 1257US4188634AMethod for regulating ink flow in drafting pensKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Feb 12, 1980·8 cites·8 claims
- 1350USD254316SInk cartridge with rupturable sealing elementKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Feb 26, 1980·4 cites·1 claims
- 1450US4130444ADevice for cleaning ink pen pointsKOH I NOOR RAPIDOGRAPH·Filed 1978·Granted Dec 19, 1978·9 cites·5 claims
- 1549US4863168ASpacers for use as string protectors for tennis, squach and badminton rackets, and device for inserting these partsANDERKA GEROLD·Filed 1987·Granted Sep 5, 1989·12 cites·12 claims
- 1644US4930921ATubular writting pen with superposed pressure equalization chambersKOH I NOOR RAPIDOGRAPH·Filed 1988·Granted Jun 5, 1990·9 cites·9 claims
- 1741US5392520AVector brushROTRING INT GMBH·Filed 1993·Granted Feb 28, 1995·8 cites·19 claims
- 1839US3963359AProtective screw cap for the writing point of a tube writing penKOH I NOOR RAPIDOGRAPH·Filed 1975·Granted Jun 15, 1976·5 cites·8 claims
- 1937US4549828AWriting instrument with separable compensating meansROTRING WERKE RIEPE KG·Filed 1983·Granted Oct 29, 1985·6 cites·3 claims
- 2037US4459602AAutomatic drafting apparatusKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Jul 10, 1984·6 cites·5 claims
- 2135US4552483ADevice for covering an oblong opening in a housingKOH I NOOR RAPIDOGRAPH·Filed 1984·Granted Nov 12, 1985·5 cites·4 claims
- 2235US4074414AProcess for the production of lettering or symbol templatesKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Feb 21, 1978·4 cites·6 claims
- 2334US4489333ADevice for exchanging objects in particular writing instrumentsKOH I NOOR RAPIDOGRAPH·Filed 1983·Granted Dec 18, 1984·5 cites·14 claims
- 2433USD283907SCircular spacer inserter for stringed racketsANDERKA GEROLD·Filed 1984·Granted May 20, 1986·1 cites·1 claims
- 2533US4221496AWriting fluid cartridgeMESNE KOH I NOOR RAPIDOGRAPH I·Filed 1978·Granted Sep 9, 1980·4 cites·10 claims
- 2632US4102584ACapillary tube pen pointKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Jul 25, 1978·2 cites·6 claims
- 2731US4103999ARupturable sealing element within an ink reservoir cartridgeKOH I NOOR RAPIDOGRAPH·Filed 1976·Granted Aug 1, 1978·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →