Inventor · disambiguated record
Winfried Kirchhoff
Also filed as: KIRCHHOFF WINFRIED
4 granted patents·178 citations·filing 1977–1989
80Inventor score
Technology areasC25D
Files withHENKEL KGAA4
Top patents by PatentIndex Score
4 records- 0195US4756771AColorless sealing layers for anodized aluminum surfacesHENKEL KGAA·Filed 1987·Granted Jul 12, 1988·137 cites·35 claims
- 0266US4939001AProcess for sealing anodized aluminumHENKEL KGAA·Filed 1989·Granted Jul 3, 1990·14 cites·20 claims
- 0365US4121980AMethod of sealing oxidized aluminum surfaces with aqueous solutions of polycarboxylic acidsHENKEL KGAA·Filed 1977·Granted Oct 24, 1978·15 cites·11 claims
- 0460US4445983ASealing anodically produced oxide layers, on aluminumHENKEL KGAA·Filed 1983·Granted May 1, 1984·12 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →