Inventor · disambiguated record
Donald J. C. Sun
Also filed as: SUN DONALD · SUN DONALD J C · SUN DONALD JEEN CHANG
22 granted patents·2 pending applications·3,089 citations·filing 1988–2016
97Inventor score
Top patents by PatentIndex Score
24 records- 0198US5219408AOne-body precision cast metal woodSUN DONALD J C·Filed 1992·Granted Jun 15, 1993·186 cites·7 claims
- 0298US5094383AGolf club head and method of forming sameANDERSON DONALD A·Filed 1990·Granted Mar 10, 1992·305 cites·8 claims
- 0398USD312858SPutter headSUN DONALD J C·Filed 1988·Granted Dec 11, 1990·76 cites·1 claims
- 0497US6089994AGolf club head with selective weighting deviceFiled 1998·Granted Jul 18, 2000·395 cites·5 claims
- 0597US5417419AGolf club with recessed, non-metallic outer face plateFiled 1993·Granted May 23, 1995·226 cites·10 claims
- 0697US5273286AMultiple concentric section golf ballSUN DONALD J C·Filed 1992·Granted Dec 28, 1993·324 cites·10 claims
- 0797US5255918AGolf club head and method of forming sameANDERSON DONALD A·Filed 1992·Granted Oct 26, 1993·255 cites·12 claims
- 0897US4872685AGolf club head with impact insert memberSUN DONALD J C·Filed 1988·Granted Oct 10, 1989·253 cites·6 claims
- 0995US6699140B1Golf putter head with honeycomb face plate structureFiled 2002·Granted Mar 2, 2004·148 cites·5 claims
- 1095US5050879AGolf driver with variable weighting for changing center of gravityCIPA MANUFACTURING CORP·Filed 1990·Granted Sep 24, 1991·437 cites·3 claims
- 1191US5013041AGolf driver with variable weighting for changing center of gravityCIPA MANUFACTURING CORP·Filed 1990·Granted May 7, 1991·146 cites·5 claims
- 1289US5261478AOne-body precision cast metal wood and process to form sameSUN DONALD J C·Filed 1993·Granted Nov 16, 1993·21 cites·9 claims
- 1388US6450894B1Golf putter head with weighted toe and heel portionsCIPA MFG CORP·Filed 2000·Granted Sep 17, 2002·89 cites·4 claims
- 1484US9719160B1Stainless steel alloys with antimicrobial propertiesGOJNY FRANCIS JOSEPH·Filed 2016·Granted Aug 1, 2017·2 cites·11 claims
- 1582USD326886SGolf club headCIPA MFG CORPORATION·Filed 1990·Granted Jun 9, 1992·30 cites·1 claims
- 1679US5246227AGolf putter with shell molded about weight distributed coreSUN DONALD J C·Filed 1992·Granted Sep 21, 1993·57 cites·13 claims
- 1773US5308076AGolf ball with polar region uninterrupted dimplesSUN DONALD J C·Filed 1993·Granted May 3, 1994·47 cites·10 claims
- 1871US5289865AOne-body precision cast metal woodSUN DONALD J C·Filed 1993·Granted Mar 1, 1994·22 cites·7 claims
- 1950US6247636B1Hollow golf club head and method for manufactureFiled 1999·Granted Jun 19, 2001·20 cites·7 claims
- 2045US5087048AGolf ballSUN DONALD J C·Filed 1990·Granted Feb 11, 1992·18 cites·10 claims
- 2145US2012186768A1Methods for forming faucets and fixturesSUN DONALD·Filed 2010·Application pending·0 cites
- 2243US5285680AGolf club measuring apparatus and methodSUN DONALD J C·Filed 1992·Granted Feb 15, 1994·16 cites·13 claims
- 2338US2012186681A1Methods and apparatus for manufacturing metal components with ceramic injection molding core structuresSUN DONALD·Filed 2010·Application pending·0 cites
- 2437US5192079AGolf ball with smaller and larger dimplesSUN DONALD J C·Filed 1991·Granted Mar 9, 1993·16 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →