Inventor · disambiguated record
Hans-Albrecht Freitag
Also filed as: FREITAG HANS-ALBRECHT
11 granted patents·172 citations·filing 1981–1990
90Inventor score
Top patents by PatentIndex Score
11 records- 0189US4644017AProcess for the production of polyisocyanate addition products and composite polyisocyanate addition productsBAYER AG·Filed 1985·Granted Feb 17, 1987·61 cites·23 claims
- 0284US4824595APolyisocyanate compositions containing reversibly blocked catalysts and addition products of sulfonyl isocyanates with catalysts having a tin(II)- or tin(IV)-carboxylate structureBAYER AG·Filed 1984·Granted Apr 25, 1989·31 cites·10 claims
- 0368US4618532AUpholstered seat having an air-permeable covering and a cold foam coreBAYER AG·Filed 1984·Granted Oct 21, 1986·26 cites·4 claims
- 0467US4390640AProcess for the production of optionally-foamed polyurethanesBAYER AG·Filed 1982·Granted Jun 28, 1983·17 cites·5 claims
- 0563US4510269AProcess for the production of optionally cellular polyurethanesBAYER AG·Filed 1984·Granted Apr 9, 1985·14 cites·10 claims
- 0657US4379861AProcess for the production of polyurethanes using morpholine compounds as catalystsBAYER AG·Filed 1981·Granted Apr 12, 1983·12 cites·5 claims
- 0754US4320067AProcess for the preparation of modified polyisocyanatesBAYER AG·Filed 1981·Granted Mar 16, 1982·3 cites·5 claims
- 0838US5109035AProcess for the production of moldings or films of cross-linked polyisocyanate polyadducts and the moldings thus obtainedBAYER AG·Filed 1990·Granted Apr 28, 1992·3 cites·7 claims
- 0933US5342855AStable dispersions of polyhydrazodicarbonamides useful in the preparation of polyurethane products having improved load-bearing capacityMILES INC·Filed 1990·Granted Aug 30, 1994·2 cites·3 claims
- 1033US4761307AProcess for the production of optionally foamed polyurethanes which are combined or fabricated with another materialBAYER AG·Filed 1986·Granted Aug 2, 1988·2 cites·6 claims
- 1131US4644016AProcess for the production of polyurethanesBAYER AG·Filed 1985·Granted Feb 17, 1987·1 cites·4 claims
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