DS

Donald J. C. Sun

UN Unknown: 4 patents #4,220 of 83,584Top 6%
Overall (All Time): #196,503 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9719160 Stainless steel alloys with antimicrobial properties Francis J. Gojny 2017-08-01
6699140 Golf putter head with honeycomb face plate structure 2004-03-02
6450894 Golf putter head with weighted toe and heel portions Ching-Chung Chiu 2002-09-17
6247636 Hollow golf club head and method for manufacture 2001-06-19
6089994 Golf club head with selective weighting device 2000-07-18
5417419 Golf club with recessed, non-metallic outer face plate Donald A. Anderson 1995-05-23
5308076 Golf ball with polar region uninterrupted dimples 1994-05-03
5289865 One-body precision cast metal wood 1994-03-01
5285680 Golf club measuring apparatus and method 1994-02-15
5273286 Multiple concentric section golf ball 1993-12-28
5261478 One-body precision cast metal wood and process to form same 1993-11-16
5255918 Golf club head and method of forming same Donald A. Anderson 1993-10-26
5246227 Golf putter with shell molded about weight distributed core Kent M. Anderson 1993-09-21
5219408 One-body precision cast metal wood 1993-06-15
5192079 Golf ball with smaller and larger dimples Eric C. P. Kuo 1993-03-09
D326886 Golf club head Wen J. Tai 1992-06-09
5094383 Golf club head and method of forming same Donald A. Anderson 1992-03-10
5087048 Golf ball Charles Su 1992-02-11
5050879 Golf driver with variable weighting for changing center of gravity Wen J. Tai 1991-09-24
5013041 Golf driver with variable weighting for changing center of gravity Wen J. Tai 1991-05-07
D312858 Putter head Donald A. Anderson 1990-12-11
4872685 Golf club head with impact insert member 1989-10-10