Assignee
CHANG DAVID S
US·4 granted patents·271 citations·filing 1996–2012
Technology mixA61K1
Top patents by PatentIndex Score
4 records- 0198USD706254SProtective case kickstandCHANG DAVID S·Filed 2012·Granted Jun 3, 2014·207 cites·1 claims
- 0286US8821942B1Highly compressible, low density ground calcium carbonate granulation and a related method of preparationCHANG DAVID S·Filed 2012·Granted Sep 2, 2014·7 cites·20 claims
- 0386USD401971SBrush standCHANG DAVID S·Filed 1996·Granted Dec 1, 1998·31 cites·1 claims
- 0481USD681624SProtective coverCHANG DAVID S·Filed 2012·Granted May 7, 2013·26 cites·1 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →