Assignee
YULKOWSKI LEON
US·8 granted patents·131 citations·filing 1974–2015
Top patents by PatentIndex Score
8 records- 0195US8844200B2Electrical door operatorYULKOWSKI LEON·Filed 2010·Granted Sep 30, 2014·35 cites·22 claims
- 0295US8261491B2Concealed electrical door operatorYULKOWSKI LEON·Filed 2009·Granted Sep 11, 2012·25 cites·20 claims
- 0392US10378262B2Door operator and clutchYULKOWSKI LEON·Filed 2015·Granted Aug 13, 2019·11 cites·20 claims
- 0487US10221609B2Concealed electrical door operatorYULKOWSKI LEON·Filed 2012·Granted Mar 5, 2019·11 cites·22 claims
- 0560US4545607ADoor constructionYULKOWSKI LEON·Filed 1982·Granted Oct 8, 1985·16 cites·17 claims
- 0654US4093284ADoor constructionYULKOWSKI LEON·Filed 1976·Granted Jun 6, 1978·11 cites·44 claims
- 0751US3969845ADoor constructionYULKOWSKI LEON·Filed 1974·Granted Jul 20, 1976·13 cites·15 claims
- 0835US5297315ASuspension for hinged doorYULKOWSKI LEON·Filed 1992·Granted Mar 29, 1994·9 cites·15 claims
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