Assignee

CLARK RICHARD D

US·2 granted patents·32 citations·filing 1987–2011

Technology mixF41J1 H04N1

Top patents by PatentIndex Score

2 records

0178US8436898B1Delayed petroleum coking vessel inspection device and methodCLARK RICHARD D·Filed 2011·Granted May 7, 2013·6 cites·16 claims
0270US4768789ADart board assembly for an electronic dart gameCLARK RICHARD D·Filed 1987·Granted Sep 6, 1988·26 cites·13 claims

Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →