Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8177905 | Fluidising composition | Gerhard Albrecht, Qiwei Yang, Hubertus Matthias Zink | 2012-05-15 |
| 7803853 | Settable mixture containing lime, a cementitious composition and a polymer | Thomas Kothe | 2010-09-28 |
| 6489032 | Cement structure containing a waterproofing layer | Karoly Discho | 2002-12-03 |
| 6063184 | Admixtures for cementitous compositions | Bernhard Leikauf, Salvatore Valenti | 2000-05-16 |
| 5911819 | Cement spraying admixture | Josef F. Drs, Bernhard Leikauf | 1999-06-15 |
| 5753037 | Fluidity control of cementitious compositions | Josef F. Drs, Salvatore Valenti | 1998-05-19 |
| 4954133 | Mixtures of a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having two 4,4'-(2,2'-disulfostilbenylene) radicals and a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having one such radical | — | 1990-09-04 |
| 4820806 | Metal-free azo compounds containing a vinylsulfonyl group and at least one basic group and 1:1 and 1:2 metal complexes thereof | Werner Baumann, Joseph V. Diest, Herbert Eichenberger | 1989-04-11 |
| 4377517 | 2-(C.sub.1-4 Alkoxy)carbonylamino-4-(2'-C.sub.1-4 alkoxy-4'-halo-1',3',5'-triazinyl-6'-amino)phenylazonaphthalenedisulfoni c acids | Roland Mislin, Hanspeter Uehlinger | 1983-03-22 |