Assignee
PARKER CHEMICAL CO
US·24 granted patents·513 citations·filing 1980–1987
Top patents by PatentIndex Score
24 records- 0194US4517028ATreatment of metal with derivative of poly-alkenylphenolPARKER CHEMICAL CO·Filed 1983·Granted May 14, 1985·67 cites·22 claims
- 0293US4433015ATreatment of metal with derivative of poly-4-vinylphenolPARKER CHEMICAL CO·Filed 1982·Granted Feb 21, 1984·62 cites·12 claims
- 0392US4457790ATreatment of metal with group IV B metal ion and derivative of polyalkenylphenolPARKER CHEMICAL CO·Filed 1983·Granted Jul 3, 1984·121 cites·20 claims
- 0491US4599116AAlkaline cleaning processPARKER CHEMICAL CO·Filed 1984·Granted Jul 8, 1986·57 cites·21 claims
- 0576US4539051AProcess for producing phosphate coatingsPARKER CHEMICAL CO·Filed 1985·Granted Sep 3, 1985·35 cites·27 claims
- 0672US4597888ACleaner for steel cansPARKER CHEMICAL CO·Filed 1985·Granted Jul 1, 1986·18 cites·23 claims
- 0765US4517029AProcess for the cold forming of iron and steelPARKER CHEMICAL CO·Filed 1983·Granted May 14, 1985·23 cites·3 claims
- 0864US4496404AComposition and process for treatment of ferrous substratesPARKER CHEMICAL CO·Filed 1984·Granted Jan 29, 1985·16 cites·9 claims
- 0953US4595424AMethod of forming phosphate coating on zincPARKER CHEMICAL CO·Filed 1985·Granted Jun 17, 1986·15 cites·15 claims
- 1051US4647316AMetal base coating composition comprising chromium, silica and phosphate and process for coating metal therewithPARKER CHEMICAL CO·Filed 1986·Granted Mar 3, 1987·14 cites·10 claims
- 1151US4496374ACompound and process for denaturing high solids paintsPARKER CHEMICAL CO·Filed 1983·Granted Jan 29, 1985·13 cites·7 claims
- 1248US4617068AComposition and process for treatment of ferrous substratesPARKER CHEMICAL CO·Filed 1985·Granted Oct 14, 1986·11 cites·4 claims
- 1347US4509992AProcesses and compositions for the treatment of aluminum surfacesPARKER CHEMICAL CO·Filed 1983·Granted Apr 9, 1985·10 cites·6 claims
- 1445US4532309AWater-based epoxy resins stable to hydrolysisPARKER CHEMICAL CO·Filed 1980·Granted Jul 30, 1985·5 cites·31 claims
- 1544US4726848AChlorinated hydrocarbon protective and/or decorative coating stripping composition and methodPARKER CHEMICAL CO·Filed 1984·Granted Feb 23, 1988·8 cites·17 claims
- 1642US4812175APassivation process and copmposition for zinc-aluminum alloysPARKER CHEMICAL CO·Filed 1987·Granted Mar 14, 1989·9 cites·16 claims
- 1738US4722753AAlkaline resistant phosphate conversion coatingsPARKER CHEMICAL CO·Filed 1987·Granted Feb 2, 1988·8 cites·8 claims
- 1838US4713121AAlkaline resistant phosphate conversion coatingsPARKER CHEMICAL CO·Filed 1987·Granted Dec 15, 1987·8 cites·13 claims
- 1931US4478647AProcess for the treatment of spent pickling pastePARKER CHEMICAL CO·Filed 1983·Granted Oct 23, 1984·3 cites·11 claims
- 2030US4465816AStable water-borne epoxy resinPARKER CHEMICAL CO·Filed 1980·Granted Aug 14, 1984·1 cites·27 claims
- 2124US4612060AProcess for controlling zinc phosphate treating solutionsPARKER CHEMICAL CO·Filed 1985·Granted Sep 16, 1986·2 cites·4 claims
- 2223US4559087AProcess for phosphating metalsPARKER CHEMICAL CO·Filed 1984·Granted Dec 17, 1985·1 cites·1 claims
- 2323US4533639ATest method for phosphate coatingsPARKER CHEMICAL CO·Filed 1984·Granted Aug 6, 1985·3 cites·4 claims
- 2420US4498935AZinc phosphate conversion coating compositionPARKER CHEMICAL CO·Filed 1981·Granted Feb 12, 1985·3 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →