Inventor · disambiguated record
Donald C. Portfolio
Also filed as: PORTFOLIO DONALD · PORTFOLIO DONALD C
7 granted patents·306 citations·filing 1976–2012
89Inventor score
Top patents by PatentIndex Score
7 records- 0194US9273228B1Roof coating compositionHYER RAYMOND·Filed 2012·Granted Mar 1, 2016·36 cites·95 claims
- 0286US6214450B1High solids water-borne surface coating containing hollow particulatesTREMCO INC·Filed 1998·Granted Apr 10, 2001·59 cites·46 claims
- 0386US5364894AEmulsification of asphalt and modified asphalt with primary emulsifier polymers comprised of acrylic acid type monomersTREMCO INC·Filed 1993·Granted Nov 15, 1994·48 cites·27 claims
- 0486US5253461AFastener-free roofing system and methodTREMCO INC·Filed 1990·Granted Oct 19, 1993·83 cites·18 claims
- 0567US3998685AApparatus and process for making an offset laminated roofing shingle and roofing shingle made therebyCELOTEX CORP·Filed 1976·Granted Dec 21, 1976·38 cites·5 claims
- 0658US5254167AAdhesive application apparatusTREMCO INC·Filed 1991·Granted Oct 19, 1993·19 cites·23 claims
- 0749US4673614ARoof insulation board and method of makingOWENS CORNING FIBERGLASS CORP·Filed 1986·Granted Jun 16, 1987·23 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →