Individual holder
SUROFF LEONARD W
US·17 granted patents·364 citations·filing 1977–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
17 records- 0188US4991249AUltrasonic toothbrushSUROFF LEONARD W·Filed 1989·Granted Feb 12, 1991·125 cites·39 claims
- 0273US5150492AUltrasonic toothbrushSUROFF LEONARD W·Filed 1991·Granted Sep 29, 1992·65 cites·55 claims
- 0371US4416415AAutomatic damper assemblySUROFF LEONARD W·Filed 1981·Granted Nov 22, 1983·28 cites·26 claims
- 0469US4501389AAutomatic damper assemblySUROFF LEONARD W·Filed 1983·Granted Feb 26, 1985·26 cites·2 claims
- 0563US4567816AUnidirectional ventSUROFF LEONARD W·Filed 1984·Granted Feb 4, 1986·17 cites·14 claims
- 0663US4123001AAutomatic ventilatorSUROFF LEONARD W·Filed 1977·Granted Oct 31, 1978·21 cites·35 claims
- 0755US4557183AIncrementally adjustable ventSUROFF LEONARD W·Filed 1984·Granted Dec 10, 1985·15 cites·11 claims
- 0850US4697736AAutomatic damper assemblySUROFF LEONARD W·Filed 1986·Granted Oct 6, 1987·15 cites·2 claims
- 0945US5080005APassive building ventsSUROFF LEONARD W·Filed 1991·Granted Jan 14, 1992·16 cites·45 claims
- 1041US4596181APassive building ventsSUROFF LEONARD W·Filed 1985·Granted Jun 24, 1986·9 cites·12 claims
- 1140US4402455AAutomatic fluid control assemblySUROFF LEONARD W·Filed 1981·Granted Sep 6, 1983·7 cites·6 claims
- 1237US4507922AThermostatic assemblySUROFF LEONARD W·Filed 1981·Granted Apr 2, 1985·5 cites·28 claims
- 1333US4466402AAutomatic switch assemblySUROFF LEONARD W·Filed 1983·Granted Aug 21, 1984·3 cites·23 claims
- 1432US4582250AAutomatic damper assemblySUROFF LEONARD W·Filed 1985·Granted Apr 15, 1986·4 cites·7 claims
- 1532US4520959AEnergy saver damper assemblySUROFF LEONARD W·Filed 1983·Granted Jun 4, 1985·4 cites·17 claims
- 1631US4591092AEnergy saver damper assemblySUROFF LEONARD W·Filed 1985·Granted May 27, 1986·3 cites·10 claims
- 1730US4586654AEnergy saver damper assemblySUROFF LEONARD W·Filed 1985·Granted May 6, 1986·1 cites·14 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →