Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5556918 | Polymeric materials suitable as dispersing resins | Gregor Brodt, August Lehner, Hermann Graf, Michael Bobrich, Ria Kress +3 more | 1996-09-17 |
| 5442090 | Radiation-curable urethane acrylate compounds containing amine and urea groups | Erich Beck, Wolfram Weiss, Hans Renz | 1995-08-15 |
| 4777322 | Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes | Wolfgang Hoelderich, Wolf D. Mross, Max Strohmeyer, Klaus Volkamer | 1988-10-11 |
| 4647344 | Recovery of isoprene from a C.sub.5 -hydrocarbon mixture | Ulrich Wagner, Klaus Volkamer, Walter Rebafka | 1987-03-03 |
| 4569725 | Separation of a C.sub.4 -hydrocarbon mixture essentially containing n-butenes and butanes | Klaus Broellos, Gerhard Sandrock, Klaus Volkamer, Werner Hefner | 1986-02-11 |
| 4448643 | Isolation of isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene | Klaus Volkamer, Ulrich Wagner | 1984-05-15 |
| 4320232 | Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene | Klaus Volkamer, Franz Merger, Ulrich Wagner, Erwin Brunner, Gerhard Sandrock +1 more | 1982-03-16 |
| 4310388 | Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 hydrocarbon | Klaus Volkamer, Klaus Broellos, Ulrich Wagner, Hans-Martin Weitz, Klaus-Juergen Schneider | 1982-01-12 |
| 4292141 | Isolation of butadiene from a C.sub.4 -hydrocarbon mixture | Klaus Volkamer, Ulrich Wagner, Dieter Pommer, Klaus-Juergen Schneider, Harald Schwentker | 1981-09-29 |
| 4287379 | Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene | Erwin Brunner, Eckart Schubert, Franz Merger, Klaus Volkamer, Max Strohmeyer +1 more | 1981-09-01 |
| 4278504 | Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture | Klaus Volkamer, Klaus Bröllos, Ulrich Wagner, Hans-Martin Weitz, Klaus-Jurgen Schneider | 1981-07-14 |
| 4277315 | Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture | Klaus Volkamer, Klaus Broellos, Ulrich Wagner, Hans-Martin Weitz, Klaus-Juergen Schneider | 1981-07-07 |
| 4277314 | Isolation of 1,3-butadiene from a C4-hydrocarbon mixture | Klaus Volkamer, Ulrich Wagner | 1981-07-07 |
| 4237330 | Isolation of butadiene from a C.sub.4 -hydrocarbon mixture | Klaus Volkamer, Ulrich Wagner | 1980-12-02 |