Individual holder
KOELBEL GERT F
DE·3 granted patents·66 citations·filing 1987–2008
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0170US4773640ADumbbell type exercising deviceKOELBEL GERT F·Filed 1987·Granted Sep 27, 1988·53 cites·13 claims
- 0246US7803093B2Freely moveable strength training device for strengthening the body musculature, which can be loaded by pullingKOELBEL GERT F·Filed 2008·Granted Sep 28, 2010·0 cites·12 claims
- 0332US5141481APortable muscle building apparatusKOELBEL GERT F·Filed 1991·Granted Aug 25, 1992·13 cites·18 claims
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