Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5482597 | Purification of crude (meth)acrylic acid | Holger Herbst, Jerry Darlington, Hans Martan | 1996-01-09 |
| 5464881 | Expandable styrene polymers of high heat resistance | Rolf Henn, Siegmund Besecke, Andreas Deckers, Norbert Guentherberg, Martin Brudermueller +1 more | 1995-11-07 |
| 5093520 | Preparation of monoethylenically unsaturated carboxylates | Peter Ruckh, Manfred Lazarus | 1992-03-03 |
| 5026806 | UV-crosslinkable materials based on isoamyl (meth)acrylate copolymers | Gerd Rehmer, Andreas Boettcher, Peter Pfoehler, Oral Aydin | 1991-06-25 |
| 4777265 | Preparation of acrylates and methacrylates | Franz Merger, Hans-Martin Hutmacher, Wolfgang Schwarz, Maria G. Szucsanyi, Rudolf Mueller-Mall | 1988-10-11 |
| 4675436 | Preparation of alkyl esters of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids | Gerhard Dietrich, Peter Ruckh, Reinhard Herzog | 1987-06-23 |
| 4613466 | Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms | Franz Merger, Friedrich Towae, Hans Hellbach | 1986-09-23 |
| 4537960 | Preparation of carbamates | Franz Merger, Friedrich Towae | 1985-08-27 |
| 4493801 | Preparation of tertiary alcohols | Franz Merger | 1985-01-15 |
| 4482499 | Process for the preparation of isocyanates by thermal cleaving of urethanes | Franz Merger, Rolf Platz, Friedrich Towae, Hans Hellbach | 1984-11-13 |
| 4476316 | Preparation of N-substituted carbamates | Franz Merger | 1984-10-09 |
| 4473376 | Dye mixtures of azo compounds soluble in organic solvents | Guenter Hansen, Franz Merger, Georg Zeidler | 1984-09-25 |
| 4359584 | Preparation of p-substituted, aromatic amines | Franz Merger | 1982-11-16 |
| 4349484 | Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates | Franz Merger, Friedrich Towae, Wolfgang Harder | 1982-09-14 |
| 4328354 | Preparation of methylene-bis-phenylcarbamic acid esters and polymethylene-polyphenylcarbamic acid esters | Franz Merger | 1982-05-04 |
| 4324727 | Preparation of butyrolactones | Franz Merger | 1982-04-13 |
| 4320235 | Preparation of 1-(aralkyl)-2-naphthols | Franz Merger | 1982-03-16 |
| 4282368 | Preparation of p-substituted aromatic carbamic acid esters | Franz Merger | 1981-08-04 |
| 4282370 | Preparation of methylene-bis-phenylcarbamic acid esters and of polymethylene-polyphenylcarbamic acid esters | Franz Merger | 1981-08-04 |
| 4273938 | Preparation of N-substituted carboxylic acid amides | Franz Merger, Uwe Kempe | 1981-06-16 |
| 4243815 | Preparation of methylene-bis(4-phenylcarbamic acid esters) | Franz Merger | 1981-01-06 |
| 4210414 | Dye mixtures for coloring mineral oil products | Guenter Hansen, Franz Merger, Georg Zeidler | 1980-07-01 |
| 4202199 | Manufacture of alkylphenol compounds | Franz Merger | 1980-05-13 |
| 4198531 | Manufacture of p-alkylphenols | Franz Merger, Max Strohmeyer, Gerhard Sandrock, Heinz Hohenschutz, Ludwig Schroff, deceased | 1980-04-15 |