Assignee

BERTENSHAW DAVID R

GB·2 granted patents·59 citations·filing 1991–1991

Technology mixF21V1 F21Y1 G05F1 H01K1 H02M1 H05B1

Top patents by PatentIndex Score

2 records

0184US5237244AElectric lighting and power controllers thereforBERTENSHAW DAVID R·Filed 1991·Granted Aug 17, 1993·52 cites·20 claims
0236US5143447ALamp system having a torroidal light emitting memberBERTENSHAW DAVID R·Filed 1991·Granted Sep 1, 1992·7 cites·20 claims

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