Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5504066 | Pentene derivatives, their production and use | Thomas Markert, Volker Porrmann | 1996-04-02 |
| 5441930 | Isomeric 11-oxatricyclo[7.3.02,6]dodecene derivatives, their production and their use as fragrances and fragrance compositions containing them | Michael Dischmann, Werner Faber, Michael Meiertoberens | 1995-08-15 |
| 5274134 | Process for the stereoselective preparation of 8.alpha., 12-oxido-13, 14,15, 16-tetranorlabdane | Theo Stalberg | 1993-12-28 |
| 5247100 | Process for the production of sclareolide | Thomas Gerke | 1993-09-21 |
| 5002929 | Derivatives of trimethylbicyclo-[4.3.0]-nonane, useful as perfumes | Thomas Gerke, Ursula Schmitz | 1991-03-26 |
| 4992416 | Isomeric formyl trimethylbicyclo[2.2.2]oct-7-enes | Thomas Gerke, Michael J. Virnig | 1991-02-12 |
| 4904640 | 2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanones | Thomas Markert, Horst-Juergen Krause, Josef Penninger, Michael J. Virnig, Volker Falk | 1990-02-27 |
| 4719043 | Isomeric 1-alkyl/alkenyl-2,2,4(2,4,4)-trimethyl cyclopentan-1-ols as perfumes | Ulf-Armin Schaper, Siegfried Bloesl, Benno Streschnak | 1988-01-12 |
| 4719041 | 1-alkyl/alkenyl cyclohexan-1-ols as perfumes | Ulf-Armin Schaper, Siegfried Bloesl, Benno Streschnak | 1988-01-12 |
| 4719042 | Tertiary alkyl-substituted alcohols as perfumes | Ulf-Armin Schaper, Siegfried Bloesl, Benno Streschnak | 1988-01-12 |
| 4661286 | Oxaspirododecane derivatives and perfume compositions containing them | Ulf-Armin Schaper, Siegfried Bloesl | 1987-04-28 |
| 4613457 | 2-methyl pentanoic acid esters and perfume compositions containing them | Siegfried Blosl, Ulf-Armin Schaper | 1986-09-23 |
| 4555359 | Trimethylbicyclo [4.3.0] non-1-ene derivatives | Ursula Weber | 1985-11-26 |
| 4545930 | Terpene derivatives and perfume compositions containing them | Horst Upadek | 1985-10-08 |
| 4528126 | 2,4-Dioxa-7,10-methano-spiro [5,5] undecanes and their use in perfumery compositions | Thuy N. Dang | 1985-07-09 |
| 4435315 | Use of alkyl-substituted 1,3-dioxolanes as perfuming agents | Jens Conrad, Ulf-Armin Schaper | 1984-03-06 |
| 4372880 | Use of substituted 2-(1-methylbutyl)-1,3-dioxanes as perfuming agents | Horst Upadek | 1983-02-08 |
| 4363754 | 4(5)-Acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene, its preparation and use in perfumery compositions and as an odorant | Jens Conrad, Horst Upadek | 1982-12-14 |
| 4362882 | 4-Methyl-2,5-dioxabicyclo-[4,4,0]-decan-3-one, its preparation and use in perfume compositions and as an odorant | Ulf-Armin Schaper | 1982-12-07 |
| 4360468 | Preparation of 13-oxabicyclo[10.3.0]pentadecane | Horst Upadek | 1982-11-23 |
| 4351772 | 6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes | Horst Upadek | 1982-09-28 |
| 4334100 | Production of aldehydes | Jens Hagen | 1982-06-08 |
| 4322559 | 4(5)-Acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene, its preparation and use in perfumery compositions and as an odorant | Jens Conrad, Horst Upadek | 1982-03-30 |
| 4311616 | Method of preparing perfume compositions that contain tricyclo[5.2.1.0.sup.2 ]decane carboxylic acid esters | Ulf-Armin Schaper | 1982-01-19 |
| 4302363 | Perfume compositions containing 4(5)-acetyl-7,7,9(7,9,9)-trimethylbicyclo[4.]non-1-ene | Ursula Weber | 1981-11-24 |