Inventor · disambiguated record
Richard Hammar
Also filed as: HAMMAR RICHARD · HAMMAR RICHARD H · HAMMAR RICHARD HARRY
44 granted patents·1 pending application·596 citations·filing 1974–2013
98Inventor score
Files withGEN MOTORS CORP17KICHLER L D CO13GM GLOBAL TECH OPERATIONS INC8L D KICHLER CO2HANNA MICHAEL D1
Top patents by PatentIndex Score
45 records- 0198US7644750B2Method of casting components with inserts for noise reductionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 12, 2010·53 cites·10 claims
- 0294US7937819B2Method of manufacturing a friction damped disc brake rotorGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 10, 2011·33 cites·40 claims
- 0393US7204119B2Hollow metallic ring seal for pressGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Apr 17, 2007·19 cites·14 claims
- 0492US7165435B1Conduction preheating for hot-formed sheet metal panelsGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Jan 23, 2007·14 cites·10 claims
- 0592US6810709B2Heated metal forming toolGEN MOTORS CORP·Filed 2002·Granted Nov 2, 2004·30 cites·20 claims
- 0691US7004007B2Die cushion apparatus for hot stretch-formingGEN MOTORS CORP·Filed 2003·Granted Feb 28, 2006·46 cites·17 claims
- 0787US8230713B2Elevated temperature forming die apparatusKRAJEWSKI PAUL EDWARD·Filed 2008·Granted Jul 31, 2012·16 cites·36 claims
- 0886US7363790B2Method for vaccum assisted preforming of superplastically or quick plastically formed articleGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Apr 29, 2008·10 cites·17 claims
- 0985US3933524AAntimony plating of lead-acid storage batteries gridsGEN MOTORS CORP·Filed 1974·Granted Jan 20, 1976·41 cites·2 claims
- 1083US8381562B2Metal forming apparatus characterized by rapid cooling and method of use thereofGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Feb 26, 2013·7 cites·14 claims
- 1183US8163399B2Damped products and methods of making and using the sameSCHROTH JAMES G·Filed 2008·Granted Apr 24, 2012·4 cites·60 claims
- 1282US8820491B2Bi-metal disc brake rotor and method of manufacturingHANNA MICHAEL D·Filed 2011·Granted Sep 2, 2014·4 cites·13 claims
- 1380US8459084B2Elevated temperature forming method and preheater apparatusKRAJEWSKI PAUL E·Filed 2009·Granted Jun 11, 2013·7 cites·10 claims
- 1480US4342343AMethod of making a negative lead-acid storage battery plateGEN MOTORS CORP·Filed 1981·Granted Aug 3, 1982·36 cites·4 claims
- 1578US7654125B2Metal forming apparatusGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Feb 2, 2010·5 cites·14 claims
- 1678US4221854ALightweight laminated grid for lead-acid storage batteriesGEN MOTORS CORP·Filed 1979·Granted Sep 9, 1980·27 cites·5 claims
- 1777US7823430B2Open press thermal gap for QPF forming toolsGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Nov 2, 2010·5 cites·31 claims
- 1876US4308322ABattery cell and electrolyte circulation pumpGEN MOTORS CORP·Filed 1980·Granted Dec 29, 1981·29 cites·5 claims
- 1973US6890394B2Heating of metal alloy sheet by thermal conductionGEN MOTORS CORP·Filed 2002·Granted May 10, 2005·7 cites·12 claims
- 2072USD398069SChandelierKICHLER L D CO·Filed 1997·Granted Sep 8, 1998·16 cites·1 claims
- 2171USD429835SChandelierKICHLER L D CO·Filed 1999·Granted Aug 22, 2000·15 cites·1 claims
- 2270US7159437B2Heated die for hot formingGEN MOTORS CORP·Filed 2004·Granted Jan 9, 2007·24 cites·5 claims
- 2370US6835254B2Recrystallization of metal alloy sheet with convection and infrared radiation heatingGEN MOTORS CORP·Filed 2002·Granted Dec 28, 2004·5 cites·12 claims
- 2470USD409783SChandelierKICHLER L D CO·Filed 1998·Granted May 11, 1999·15 cites·1 claims
- 2568USD411029SChandelierKICHLER L D CO·Filed 1998·Granted Jun 15, 1999·14 cites·1 claims
- 2666USD386281SChandelierKICHLER L D CO·Filed 1996·Granted Nov 11, 1997·13 cites·1 claims
- 2762US7159427B2Heated and insulated tool container for hot gas blow-formingGEN MOTORS CORP·Filed 2004·Granted Jan 9, 2007·6 cites·10 claims
- 2862US7080535B2Spring-loaded part extractors for heated forming toolsGEN MOTORS CORP·Filed 2004·Granted Jul 25, 2006·5 cites·12 claims
- 2962USD441118SChandelierL D KICHLER CO·Filed 1999·Granted Apr 24, 2001·11 cites·1 claims
- 3062USD410102SChandelierKICHLER L D CO·Filed 1998·Granted May 18, 1999·11 cites·1 claims
- 3160US7066000B2Forming tool apparatus for hot stretch-forming processesGEN MOTORS CORP·Filed 2004·Granted Jun 27, 2006·5 cites·10 claims
- 3260USD350833SGlass lamp shadeKICHLER L D CO·Filed 1993·Granted Sep 20, 1994·9 cites·1 claims
- 3358US7204110B2Hot die cleaning system for quick plastic forming cellGEN MOTORS CORP·Filed 2004·Granted Apr 17, 2007·4 cites·4 claims
- 3455USD436212SLighting fixtureKICHLER L D CO·Filed 1999·Granted Jan 9, 2001·8 cites·1 claims
- 3554USD359141SChandelierKICHLER L D CO·Filed 1994·Granted Jun 6, 1995·7 cites·1 claims
- 3649US4286362ALightweight laminated grid for lead acid-storage batteriesGEN MOTORS CORP·Filed 1980·Granted Sep 1, 1981·10 cites·3 claims
- 3748US6837088B1Blow-forming flask and tool assemblyGEN MOTORS CORP·Filed 2004·Granted Jan 4, 2005·2 cites·16 claims
- 3848USD429836SLighting fixtureKICHLER L D CO·Filed 1999·Granted Aug 22, 2000·6 cites·1 claims
- 3946US2013205854A1Elevated temperature forming method and preheater apparatusUSAMP·Filed 2013·Application pending·0 cites
- 4042USD372321SChandelierKICHLER L D CO·Filed 1995·Granted Jul 30, 1996·4 cites·1 claims
- 4139USD372554SChandelierKICHLER L D CO·Filed 1995·Granted Aug 6, 1996·3 cites·1 claims
- 4238US4169192ALead-acid storage battery having Pb-Cd-Zn-Sn plate strapsGEN MOTORS CORP·Filed 1978·Granted Sep 25, 1979·6 cites·2 claims
- 4335USD371859SGlass lighting fixture shadeKICHLER L D CO·Filed 1995·Granted Jul 16, 1996·2 cites·1 claims
- 4433USD441480SChandelierL D KICHLER CO·Filed 1999·Granted May 1, 2001·1 cites·1 claims
- 4530US4881944AMethod of making positive battery pasteGEN MOTORS CORP·Filed 1989·Granted Nov 21, 1989·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →