Inventor · disambiguated record
Harold G. Simpson
Also filed as: SIMPSON HAROLD G · SIMPSON HAROLD GRAVES
54 granted patents·2 pending applications·1,843 citations·filing 1973–2012
99Inventor score
Top patents by PatentIndex Score
56 records- 0199US7874117B1Standing seam roof assemblySIMPSON INC HAROLD·Filed 2009·Granted Jan 25, 2011·51 cites·13 claims
- 0298US7574839B1Roof assembly having increased resistance to sidelap shearSIMPSON INC HAROLD·Filed 2005·Granted Aug 18, 2009·60 cites·21 claims
- 0395US9003733B1Standing seam strengthening apparatusSIMPSON HAROLD G·Filed 2011·Granted Apr 14, 2015·38 cites·11 claims
- 0495US7984596B1Roof assembly improvements providing increased load bearingSIMPSON INC HAROLD·Filed 2007·Granted Jul 26, 2011·35 cites·3 claims
- 0595US4372014AConstruction system and fastener thereforeSTAR MANUFACTURING CO·Filed 1975·Granted Feb 8, 1983·74 cites·16 claims
- 0694US5697197ARoof panel system having increased resistance to wind loadsSIMPSON INC HAROLD·Filed 1995·Granted Dec 16, 1997·108 cites·18 claims
- 0794US4366656ARoof panel assemblies for forming weatherproof standing seam joints and the like and methods of joining standing seam roof panelsWICKES CORP·Filed 1980·Granted Jan 4, 1983·84 cites·24 claims
- 0894US4112632APrefabricated watertight structural systemSTAR MFG CO·Filed 1975·Granted Sep 12, 1978·62 cites·12 claims
- 0992US4329823ASupport spacer apparatusENCON PRODUCTS INC·Filed 1979·Granted May 18, 1982·72 cites·43 claims
- 1089US6889478B1Standing seam roof assembly having increased sidelap shear capacitySIMPSON INC HAROLD·Filed 2001·Granted May 10, 2005·45 cites·21 claims
- 1189US4682454AStanding seam roof assembly componentsSIMPSON INC HAROLD·Filed 1986·Granted Jul 28, 1987·75 cites·9 claims
- 1288US5142838AStanding seam roof assembly and support apparatusSIMPSON INC HAROLD·Filed 1989·Granted Sep 1, 1992·53 cites·15 claims
- 1386US4602468ARoof clip assembly for a roof systemSIMPSON INC HAROLD·Filed 1982·Granted Jul 29, 1986·57 cites·39 claims
- 1486US4351140AEnd lap seam construction for standing seam roof panelsWICKES CORP·Filed 1980·Granted Sep 28, 1982·60 cites·18 claims
- 1584US5857292ARoof support apparatusSIMPSON INC HAROLD·Filed 1995·Granted Jan 12, 1999·65 cites·20 claims
- 1684US5692352ARoof panel standing seam assembliesSIMPSON INC HAROLD·Filed 1995·Granted Dec 2, 1997·74 cites·15 claims
- 1781US4296582AConstruction system and fasteners thereforeSTAR MFG CO·Filed 1975·Granted Oct 27, 1981·39 cites·19 claims
- 1879US4361993AFrameless enclosure assemblyENCON PRODUCTS INC·Filed 1980·Granted Dec 7, 1982·41 cites·91 claims
- 1978US7730694B1Sliding clip with extended travelSIMPSON INC HAROLD·Filed 2005·Granted Jun 8, 2010·10 cites·25 claims
- 2078US4528789AInsulated roof systemENCON PRODUCTS INC·Filed 1982·Granted Jul 16, 1985·39 cites·42 claims
- 2176US4620397ARoof system positionable over an existing roof structure and method for installing sameSIMPSON INC HAROLD·Filed 1985·Granted Nov 4, 1986·46 cites·18 claims
- 2275US4472920AMethod of insulating and sealing and buildingENCON PRODUCTS INC·Filed 1981·Granted Sep 25, 1984·35 cites·15 claims
- 2374US5737894AStanding seam assemblySIMPSON INC HAROLD·Filed 1995·Granted Apr 14, 1998·51 cites·12 claims
- 2474US4077171APrefabricated watertight structural systemSTAR MFG CO·Filed 1975·Granted Mar 7, 1978·30 cites·4 claims
- 2573US6301853B1Standing seam roof assemblySIMPSON INC HAROLD·Filed 1998·Granted Oct 16, 2001·45 cites·19 claims
- 2673US4597234AStanding seam roof assemblySIMPSON INC HAROLD·Filed 1984·Granted Jul 1, 1986·39 cites·24 claims
- 2771US8091312B2Standing seam panel clipsSIMPSON HAROLD G·Filed 2008·Granted Jan 10, 2012·5 cites·13 claims
- 2869US4078351AConstruction systemSTAR MFG CO·Filed 1973·Granted Mar 14, 1978·18 cites·4 claims
- 2968US4403980APrefabricated watertight structural systemSTAR MFG CO·Filed 1975·Granted Sep 13, 1983·31 cites·2 claims
- 3067US5704170AApparatus for roof supportSIMPSON INC HAROLD·Filed 1995·Granted Jan 6, 1998·40 cites·22 claims
- 3167US4074492APrefabricated watertight structural systemSTAR MFG CO·Filed 1975·Granted Feb 21, 1978·30 cites·8 claims
- 3266US5005323AApparatus for securing a roofing support spacer to underlying support structuresSIMPSON INC HAROLD·Filed 1989·Granted Apr 9, 1991·33 cites·2 claims
- 3364US7278456B1Tire chain and cable installation device and methodSIMPSON HAROLD G·Filed 2006·Granted Oct 9, 2007·1 cites·10 claims
- 3464US5303528AStanding seam roof assembly and support apparatusSIMPSON INC HAROLD·Filed 1992·Granted Apr 19, 1994·25 cites·41 claims
- 3561US4516371AInsulation and paneling apparatus and methodENCON PRODUCTS INC·Filed 1981·Granted May 14, 1985·28 cites·29 claims
- 3660US6588170B2Zone based roofing systemSIMPSON INC HAROLD·Filed 2001·Granted Jul 8, 2003·9 cites·24 claims
- 3760US5685118ARoof panels with stiffened endlapsSIMPSON INC HAROLD·Filed 1995·Granted Nov 11, 1997·36 cites·16 claims
- 3857US4525967ASupport spacer apparatus for a built-up roofENCON PRODUCTS INC·Filed 1981·Granted Jul 2, 1985·20 cites·5 claims
- 3954USD360743SFlexible plastic shoehornSIMPSON HAROLD G·Filed 1994·Granted Aug 1, 1995·7 cites·1 claims
- 4054US4524554AStructural bracing systemENCON PRODUCTS INC·Filed 1981·Granted Jun 25, 1985·20 cites·17 claims
- 4153US4534148AAdjustable roofing support spacer apparatus and erection methodENCON PRODUCTS INC·Filed 1983·Granted Aug 13, 1985·17 cites·6 claims
- 4252US4497151AStanding seam metal roof assemblyNUCOR CORP·Filed 1982·Granted Feb 5, 1985·26 cites·7 claims
- 4351US6823642B1Roof demand and zone based roofing systemSIMPSON INC HAROLD·Filed 2003·Granted Nov 30, 2004·1 cites·20 claims
- 4450US4525976AMethod and apparatus for assembling standing seam roofsENCON PRODUCTS INC·Filed 1983·Granted Jul 2, 1985·14 cites·13 claims
- 4550US4375848AStacked panel package and methods for making sameWICKES CORP·Filed 1980·Granted Mar 8, 1983·21 cites·6 claims
- 4649US2005193644A1Standing seam panel clipsFiled 2004·Application pending·0 cites
- 4747US2012102866A1Standing Seam Panel Clip With Sealant Encapsulation ChambersSIMPSON HAROLD G·Filed 2012·Application pending·0 cites
- 4846US4026085AConstruction systemSTAR MFG CO·Filed 1974·Granted May 31, 1977·10 cites·3 claims
- 4944USD355522SFlexible plastic shoehornSIMPSON HAROLD G·Filed 1994·Granted Feb 21, 1995·4 cites·1 claims
- 5044US4835917AMembrane supported reroofing systemSIMPSON INC HAROLD·Filed 1986·Granted Jun 6, 1989·14 cites·18 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →