Individual holder
LOGSDON DUANE D
16 granted patents·766 citations·filing 1974–1987
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
16 records- 0196US4442994APipe hanger capable of totally encircling a pipeLOGSDON DUANE D·Filed 1982·Granted Apr 17, 1984·106 cites·7 claims
- 0294US4564249AMiniature washing machine boxLOGSDON DUANE D·Filed 1984·Granted Jan 14, 1986·66 cites·1 claims
- 0393US4768741APipe hangersLOGSDON DUANE D·Filed 1987·Granted Sep 6, 1988·77 cites·6 claims
- 0492US4350372AExpansion coupling for large diameter plastic pipesLOGSDON DUANE D·Filed 1980·Granted Sep 21, 1982·78 cites·5 claims
- 0591US4611626AFluid control valveLOGSDON DUANE D·Filed 1984·Granted Sep 16, 1986·54 cites·1 claims
- 0690US4010578ARoof flashing structureLOGSDON DUANE D·Filed 1974·Granted Mar 8, 1977·56 cites·2 claims
- 0788US4088149ACheck valve structure for use in drainsLOGSDON DUANE D·Filed 1976·Granted May 9, 1978·43 cites·1 claims
- 0883US4742585ATub boxLOGSDON DUANE D·Filed 1987·Granted May 10, 1988·51 cites·5 claims
- 0983USD257057SPipe test capLOGSDON DUANE D·Filed 1977·Granted Sep 23, 1980·16 cites·1 claims
- 1081US4487690ASump or flush installable roof drainLOGSDON DUANE D·Filed 1983·Granted Dec 11, 1984·54 cites·6 claims
- 1179US4525273ADrain grate with adjustable weirsLOGSDON DUANE D·Filed 1983·Granted Jun 25, 1985·48 cites·3 claims
- 1273USD270935SExpansion coupling for plastic pipeLOGSDON DUANE D·Filed 1981·Granted Oct 11, 1983·12 cites·1 claims
- 1370US4768560APipe plugsLOGSDON DUANE D·Filed 1987·Granted Sep 6, 1988·33 cites·5 claims
- 1464US4400272ADrain grate with adjustable weirsLOGSDON DUANE D·Filed 1981·Granted Aug 23, 1983·31 cites·2 claims
- 1555US4484424ARoof ventLOGSDON DUANE D·Filed 1982·Granted Nov 27, 1984·25 cites·10 claims
- 1650US4400920AApparatus for securing pipeLOGSDON DUANE D·Filed 1981·Granted Aug 30, 1983·16 cites·11 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →