Inventor · disambiguated record
Helmut Doerfel
Also filed as: DOERFEL HELMUT
4 granted patents·78 citations·filing 1975–1980
75Inventor score
Top patents by PatentIndex Score
4 records- 0189US4049638AManufacture of polylactams with initial pressures above vapor pressures of starting materialsBASF AG·Filed 1975·Granted Sep 20, 1977·52 cites·13 claims
- 0263US4277588APreparation of acetylene copolymersBASF AG·Filed 1980·Granted Jul 7, 1981·13 cites·4 claims
- 0358US4060517AContinuous manufacture of polyamidesBASF AG·Filed 1975·Granted Nov 29, 1977·13 cites·3 claims
- 0421US4055547ARemoving odorous formaldehyde from stabilized shaped polyoxymethylenesDOERFEL HELMUT·Filed 1975·Granted Oct 25, 1977·0 cites·5 claims
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