Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057239 | Use of a spiranic lactone as fragrance ingredient | Francois Delay, Wolfgang K. Giersch | 1991-10-15 |
| 4818747 | Bicyclic aliphatic alcohols and their utilization as perfuming ingredients | Wolfgang K. Giersch | 1989-04-04 |
| 4711875 | Composition essentially consisting of trans-1-(2,6,6-trimethylcyclohexyl)-hexan-3-ol | Karl-Heinrich Schulte-Elte, Bernard Muller, Wolfgang K. Giersch | 1987-12-08 |
| 4623750 | Composition essentially consisting of trans-1-(2,6,6-trimethylcyclohexyl)-hexan-3-ol | Karl-Heinrich Schulte-Elte, Bernard Muller, Wolfgang K. Giersch | 1986-11-18 |
| 4608445 | Oxygenated alicyclic compounds | Wolfgang K. Giersch, Karl-Heinrich Schulte-Elte | 1986-08-26 |
| 4524019 | Spiro-lactone derivatives, their use as perfuming agents, and perfuming composition containing same | Wolfgang K. Giersch | 1985-06-18 |
| 4460498 | Unsaturated alicyclic ethers and their utilization as perfuming and flavoring ingredients | Wolfgang K. Giersch | 1984-07-17 |
| 4438023 | Oxygenated tricyclic derivatives of norbornane and use of same as perfuming ingredients | Werner Skorianetz | 1984-03-20 |
| 4396781 | Unsaturated alicyclic ethers | Wolfgang K. Giersch | 1983-08-02 |
| 4372881 | Unsaturated alicyclic compounds, their use as perfuming and flavoring ingredients | Wolfgang K. Giersch | 1983-02-08 |
| 4341897 | Pyranic derivatives for use in the preparation of muscone | Karl-Heinrich Schulte-Elte, Arnold Hauser | 1982-07-27 |
| 4341666 | Perfuming with oxygen containing derivatives of tricyclo[6.2.1.0.sup.2,7 ]u n | Werner Skorianetz | 1982-07-27 |
| 4311852 | Oxygen containing derivatives of tricyclo[6.2.1.0.sup.2,7 ]undecane | Werner Skorianetz | 1982-01-19 |
| 4304793 | Polyunsaturated aliphatic esters as flavoring ingredients | Ferdinand Naf, Wolfgang K. Giersch | 1981-12-08 |
| 4296258 | Process for the preparation of macrocyclic ketones | Charles Fehr, Georges H. Buchi | 1981-10-20 |
| 4277625 | Process for the preparation of muscone | Karl-Heinrich Schulte-Elte, Arnold Hauser | 1981-07-07 |
| 4271076 | Tricyclic lactones | Joseph J. Becker | 1981-06-02 |
| 4255292 | Perfuming composition containing 3-phenyl-cyclohex-2-en-1-one | Wolfgang K. Giersch | 1981-03-10 |
| 4252693 | Perfume compositions containing spirane derivatives | Karl-Heinrich Schulte-Elte, Peter Fankhauser | 1981-02-24 |
| 4226892 | Flavoring with cycloaliphatic unsaturated ketones | Ervin Kovats, Edouard P. Demole, Max Stoll | 1980-10-07 |
| 4224351 | Flavoring with certain sulphur compounds | Erling Sundt | 1980-09-23 |
| 4218488 | Use of spirane derivatives to improve the organoleptic properties of foodstuffs, feedstuffs, or beverages | Walter Renold, Werner Skorianetz, Karl-Heinrich Schulte-Elte | 1980-08-19 |
| 4205084 | Control of insects with 2-ethyl-1,6-dioxaspiro[4.4]nonane | Jean P. Vite, Ernst J. W. Francke | 1980-05-27 |
| 4187863 | Cycloaliphatic unsaturated ketones as odor and taste modifying agents in tobacco products | Ervin Kovats, Edouard P. Demole, Max Stoll | 1980-02-12 |