Individual holder
SCHREFFLER ROBERT Z
4 granted patents·50 citations·filing 1975–2006
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0157US3940200AElectrical conductor arrangement including flexible race constructionSCHREFFLER ROBERT Z·Filed 1975·Granted Feb 24, 1976·19 cites·8 claims
- 0256US4696131AEaves rain gutterSCHREFFLER ROBERT Z·Filed 1986·Granted Sep 29, 1987·30 cites·6 claims
- 0341US7509954B2Residential fireplace insertSCHREFFLER ROBERT Z·Filed 2006·Granted Mar 31, 2009·0 cites·1 claims
- 0424US3984164AElectrical conductor arrangement including a rotating flexuous electrical contactorSCHREFFLER ROBERT Z·Filed 1975·Granted Oct 5, 1976·1 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →