Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908481 | Preparation of 1-(4-hydroxy-phenyl)-butan-3-one and novel intermediates | Dieter Degner | 1990-03-13 |
| 4773891 | Drive shaft of fibre-reinforced plastic material | — | 1988-09-27 |
| 4751214 | Use of 2-tert-butyl-4-methylcyclohexanol as a scent and as a component of scent compositions | Walter Gramlich, Klaas Jansen, Wolfgang Lengsfeld, Ludwig Schuster | 1988-06-14 |
| 4747806 | Detachable flange connection for torque transmitting drive shaft particularly for connecting two parts of a cardan drive shaft for motor vehicles | Werner Krude | 1988-05-31 |
| 4729877 | Apparatus for the solid-bed polymerization of monomers | Karl Hennig, Karlheinz Messmer, Guenter Hoerdt, Gerhard KLEINPETER, Hans-Juergen Raubenheimer | 1988-03-08 |
| 4728747 | Novel 2,3-disubstituted bicyclo(2.2.1)heptanes and heptenes, their preparation, and their use as scents | Lothar Janitschke | 1988-03-01 |
| 4671816 | Acetylene compounds, their preparation and their use for regulating plant growth | Jens-Uwe Bliesener, Manfred Baumann, Hubert Sauter, Johann Jung | 1987-06-09 |
| 4665221 | Preparation of terpenoid formates | Frank Thoemel | 1987-05-12 |
| 4654167 | p-Alkoxycyclohexylalkanols and p-alkoxycyclohexylalkyl esters and their use as scents | Dieter Degner, Walter Gramlich, Ludwig Schuster | 1987-03-31 |
| 4585594 | Preparation of 4-substituted but-3-ene-1-carboxylic acids and their esters | Walter Himmele, Lothar Janitschke | 1986-04-29 |
| 4550211 | Preparation of compounds of the 4-oxodamascone series, and novel scents from this class of compounds | Lothar Janitschke | 1985-10-29 |
| 4517382 | 1-Formyl-tri- and tetramethyl-cyclohex-1-en-3-one oximes | Lothar Janitschke | 1985-05-14 |
| 4491545 | Preparation of 2,3,5-trimethyl-p-benzoquinone | Frank Thoemel | 1985-01-01 |
| 4431844 | Preparation of polyunsaturated ketones | Lothar Janitschke, Lothar Arnold, Manfred Stroezel, Hans-Juergen Scheiper | 1984-02-14 |
| 4431490 | Preparation of cyclopentadecanolide | Dieter Degner, Frank Thoemel | 1984-02-14 |
| 4426332 | Preparation of resorcinol derivatives | Frank Thoemel | 1984-01-17 |
| 4418216 | Bis-tert.-butoxypentanals and bis-tert.-butoxypentanols | Walter Himmele | 1983-11-29 |
| 4409402 | Tert.-butoxybutanals, tert.-butoxybutanols, bis-tert.-butoxypentanals and bis-tert.-butoxypentanols | Walter Himmele | 1983-10-11 |
| 4358614 | Preparation of .alpha.- and .beta.-cyclocitral, and the N-methylaldimines of these compounds | Lothar Janitschke | 1982-11-09 |
| 4355180 | Preparation of primary aromatic amines from cyclic alcohols and/or ketones | Norbert Goetz, Leopold Hupfer, Manfred Baumann | 1982-10-19 |
| 4347388 | 3,6-Dimethyl-3-hydroxy-oct-1-ynes and -oct-1-enes, derivatives of these, and their use as scents, and in the preparation of 3,6-dimethyl-3-hydroxy-octane | Walter Gramlich, Leopold Hupfer, Bernd Meissner, Juergen Paetsch | 1982-08-31 |
| 4347537 | Tape cartridge assembly and tape transport apparatus for use therewith | Klaus Schoettle, Peter Dobler, Lothar Gliniorz | 1982-08-31 |
| 4333116 | Positioning device for a magnetic head of a magnetic tape recorder | Klaus Schoettle, Eduard Kaemmer, Peter Dobler, Lothar Gliniorz | 1982-06-01 |
| 4292244 | Novel 2,4-disubstituted pyran derivatives, their preparation and their use as scents | Frank Thoemel | 1981-09-29 |
| 4276575 | Tape guide for high-speed tape transport apparatus | Klaus Schoettle, Eduard Kaemmer, Klaus Boehlke, Helmut Lewin | 1981-06-30 |