Issued Patents All Time
Showing 26–50 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356938 | Recycling of cured aminoplast resins | Juergen Weiser, Erwin Hahn | 1994-10-18 |
| 5342916 | Condensation polymers of sulfonated phenols, urea, other organic nitrogen-bases, and formaldehyde, and their use as tanning agents and as spraying aids for redispersible polymer powders | Juergen Weiser, Karl Stork, Ortwin Schaffer, Gernot Franzmann, Thomas Schwerzel +3 more | 1994-08-30 |
| 5332830 | Preparation of N-hydroxyazoles | Klaus Horchler von Locquenghien, Wolfgang Hoelderich, Ulf Baus, Erwin Hahn | 1994-07-26 |
| 5322915 | Modified melamine-formaldehyde resins | Juergen Weiser, Rolf Fikentscher, Wolfgang Fath, Heinz Berbner, Hans D. Zettler +1 more | 1994-06-21 |
| 5245063 | Preparation of carbonyl chlorides | Peter Ksoll, Andreas Hohmann, Peter Wittmer | 1993-09-14 |
| 5216010 | Biocidal N-thiocyanatomethoxyazaheterocycles | Ulf Baus, Gisela Lorenz | 1993-06-01 |
| 5186947 | Wood preservative based on polymeric nitrogen compounds and metal-fixing acids | Reimer Goettsche | 1993-02-16 |
| 5187194 | Wood preservatives containing polymeric nitrogen compounds | Reimer Goettsche | 1993-02-16 |
| 5173501 | Substituted N-hydroxypyrazoles and N-hydroxytriazoles for controlling pests | Hans-Juergen Neubauer, Uwe Kardorff, Joachim Leyendecker, Ulf Baus, Christoph Kuenast +3 more | 1992-12-22 |
| 5166427 | Preparation of acyl chlorides | Andreas Hohmann, Enrique Freudenberg, Kurt Mayer | 1992-11-24 |
| 5162487 | Melamine resin moldings having increased elasticity | Juergen Weiser, Gerhard Turznik, Wolfgang Fath, Heinz Berbner, Onno Graalmann | 1992-11-10 |
| 5158974 | Preparation of N-alkyl- and N,N-dialkyldiaminoethanes | Andreas Hohmann, Werner Bochnitschek | 1992-10-27 |
| 5120756 | Substituted n-hydroxypyrazoles and n-hydroxy-triazoles for controlling pests | Hans-Juergen Neubauer, Uwe Kardoff, Joachim Leyendecker, Ulf Baus, Christoph Kuenast +3 more | 1992-06-09 |
| 5112985 | Preparation of 1-hydroxyimidazole | Ulf Baus | 1992-05-12 |
| 5084488 | Melamine resin moldings having increased elasticity | Juergen Weiser, Gerhard Turznik, Wolfgang Fath, Heinz Berbner, Onno Graalmann | 1992-01-28 |
| 5081142 | Derivatives of 1-hydroxy-1,2,4-triazole and fungicides and growth regulators containing them | Hubert Sauter, Thomas Zierke, Ulf Baus, Gisela Lorenz, Eberhard Ammermann | 1992-01-14 |
| 5076808 | Dyeing of polyamide substrates with an organic N-nitroso-hydroxylamine as light stabilizer | Erwin Hahn, Alexander Aumueller, Reinhold Krallmann, Dieter Wegerle | 1991-12-31 |
| 5049678 | 1-hydroxy-1,2,4-triazoles | Ulf Baus | 1991-09-17 |
| 5047551 | Preparation of 4-chloropyrazoles | Ulf Baus | 1991-09-10 |
| 5026720 | 1-hydroxyazole compounds and fungicides containing these | Ulf Baus, Gisela Lorenz, Eberhard Ammermann | 1991-06-25 |
| 5017725 | Preparation of addition salts of cysteamine with acids | Andreas Hohmann, Rolf Fikentscher, Theo Proll | 1991-05-21 |
| 4988721 | 0-(1,2,4-triazol-1-yl) o-phenyl acetals useful as fungicides | Ulf Baus, Gisela Lorenz, Eberhard Ammermann | 1991-01-29 |
| 4987143 | 1-hydroxy-1,2,4-triazole compounds useful as fungicides | Ulf Baus, Gisela Lorenz, Eberhard Ammermann | 1991-01-22 |
| 4957937 | Substituted N-hydroxypyrazoles and fungicides which contain these compounds | Franz Schuetz, Hubert Sauter, Siegbert Brand, Bernd Wenderoth, Ulf Baus +2 more | 1990-09-18 |
| 4945166 | Preparation of N-hydroxypyrazoles | Ulf Baus, Rolf Fikentscher | 1990-07-31 |