Inventor · disambiguated record
Walter Klan
Also filed as: KLAEN WALTER · KLAN WALTER
9 granted patents·185 citations·filing 1988–2004
90Inventor score
Top patents by PatentIndex Score
9 records- 0187US6472449B1Compressed, rigid polyurethane foamsBAYER AG·Filed 2000·Granted Oct 29, 2002·29 cites·7 claims
- 0280US7671104B2Fine cell, water-blown rigid polyurethane foamsBAYER MATERIALSCIENCE AG·Filed 2004·Granted Mar 2, 2010·17 cites·3 claims
- 0377US6306920B1Method for producing closed-cell rigid polyurethane foams having low thermal conductivityBAYER AG·Filed 1998·Granted Oct 23, 2001·31 cites·12 claims
- 0472US5840781APolyether polyols, polyol formulation containing them and their use in the production of hard polyurethane foamsBAYER AG·Filed 1996·Granted Nov 24, 1998·24 cites·19 claims
- 0570US6107359APolyether polyols, polyol formulation containing them and their use in the production of hard polyurethane foamsBAYER AG·Filed 1998·Granted Aug 22, 2000·22 cites·9 claims
- 0665US6316513B1Process for the producing of hard polyurethane foams with low heat conductivityBAYER AG·Filed 1997·Granted Nov 13, 2001·20 cites·14 claims
- 0764US5736588AProcess for preparing rigid polyurethane foamsBAYER AG·Filed 1994·Granted Apr 7, 1998·20 cites·5 claims
- 0863US4857560AReaction products useful as catalysts in the production of isocyanate-based plasticsBAYER AG·Filed 1988·Granted Aug 15, 1989·14 cites·13 claims
- 0942US6071978AMethod of producing hydrocarbon-expanded rigid polyurethane foamsBAYER AG·Filed 1997·Granted Jun 6, 2000·8 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Walter Klan files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →