Assignee
HAMM WILFRIED
DE·4 granted patents·49 citations·filing 1974–1983
Top patents by PatentIndex Score
4 records- 0146US3945156AInflatable building constructionHAMM WILFRIED·Filed 1974·Granted Mar 23, 1976·12 cites·2 claims
- 0243US4289303AHand-rail element for staircaseHAMM WILFRIED·Filed 1979·Granted Sep 15, 1981·12 cites·3 claims
- 0338US4512572AMulti-purpose sports-kitHAMM WILFRIED·Filed 1983·Granted Apr 23, 1985·13 cites·8 claims
- 0438US4438608AStairtread for spiral staircaseHAMM WILFRIED·Filed 1981·Granted Mar 27, 1984·12 cites·3 claims
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