Issued Patents All Time
Showing 51–75 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4756840 | Beta-alkylidene phenethyl alcohols, organoleptic uses thereof and processes for preparing same | Mark A. Sprecker | 1988-07-12 |
| 4755502 | Allyl-4-cyclooctenyl glycolate, organoleptic uses thereof, process for preparing same and intermediates useful in said process | Mark A. Sprecker, William L. Schreiber | 1988-07-05 |
| 4681976 | Process for preparing alkyl substituted and unsubstituted para-carboalkoxy cyclohexanones | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1987-07-21 |
| 4668817 | Alkyl substituted para-carboalkoxy cyclohexanones | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1987-05-26 |
| 4643903 | Alkyl substituted and unsubstituted para-carboalkoxy cyclohexanones and organoleptic uses thereof | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1987-02-17 |
| 4629805 | Alkyl substituted and unsubstituted para-carboalkoxy cyclohexanones and organoleptic uses thereof | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1986-12-16 |
| 4616095 | Isomer-directed process for producing asymmetric ketones using catalytic claisen rearrangement of allylic ethers, intermediates, and uses of products and intermediates of process in perfumery | Mark A. Sprecker, William L. Schreiber, Michael Licciardello | 1986-10-07 |
| 4615830 | Isomer-directed process for producing asymmetric ketones using catalytic Claisen rearrangement of allylic ethers, intermediates, and uses of products and intermediates of process in perfumery | Mark A. Sprecker, William L. Schreiber, Michael Licciardello | 1986-10-07 |
| 4614831 | Process for preparing alkyl substituted para-carboalkoxy cyclohexanones | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1986-09-30 |
| 4613706 | Isomer-directed process for producing asymmetric ketones using catalytic Claisen rearrangement of allylic ethers, intermediates, and uses of products and intermediates of process in perfumery | Mark A. Sprecker, William L. Schreiber, Michael Licciardello | 1986-09-23 |
| 4576741 | Isomer-directed process for producing asymmetric ketones using catalytic Claisen rearrangement of allylic ethers, intermediates, and uses of products and intermediates of process in perfumery | Mark A. Sprecker, William L. Schreiber, Michael Licciardello | 1986-03-18 |
| 4576742 | Perfume uses of reactive product containing mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives | Mark A. Sprecker, Marie R. Hanna, Richard J. Tokarzewski, Hugh Watkins, Manfred H. Vock | 1986-03-18 |
| 4549982 | 1-Oxoalkyl-2-isopropylnorbornane derivatives, uses thereof in augmenting or enhancing the aroma of consumable materials and processes for preparing same | John B. Hall, Mark A. Sprecker, Augustinus G. Van Loveren, Marie R. Hanna | 1985-10-29 |
| 4548743 | Ketal and use in perfumery | Mark A. Sprecker, William L. Schreiber, Michael Licciardello | 1985-10-22 |
| 4543192 | Use of norbornyl oxyacetaldehyde in augmenting or enhancing aroma of detergents or fabric softeners | Richard M. Boden, Marie R. Hanna | 1985-09-24 |
| 4537704 | Alkyl substituted and unsubstituted para-carboalkoxy cyclohexanones and organoleptic uses thereof | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1985-08-27 |
| 4534890 | Uses of para-acyloxycyclohexyl alkylcarboxylates in augmenting or enhancing the organoleptic properties of consumable materials | Mark A. Sprecker, Wilhelmus J. Wiegers, Richard M. Boden | 1985-08-13 |
| 4524020 | Isopropyl substituted cyclohexenyl methyl ketones and perfumery uses thereof | Mark A. Sprecker, Augustinus G. Van Loveren, Marie R. Hanna | 1985-06-18 |
| 4493790 | Organoleptic use of isopropyl tetramethylindanes | Mark A. Sprecker, Roger E. Greene | 1985-01-15 |
| 4492645 | Organoleptic use of cyclohexenyl-alpha-alkyl acrolein derivatives | Mark A. Sprecker, Philip T. Klemarczyk | 1985-01-08 |
| 4487701 | Process of augmenting or enhancing the aroma of fabric softeners and detergents using cyclohexenyl-alpha-alkyl acrolein derivatives | Mark A. Sprecker, Philip T. Klemarczyk | 1984-12-11 |
| 4480647 | Use of cyclohexenyl-alkyl acrolein derivatives in augmenting or enhancing the aroma or taste of smoking tobacco compositions and smoking tobacco articles | Mark A. Sprecker, Philip T. Klemarczyk | 1984-11-06 |
| 4480136 | Norbornyl oxyacetaldehyde, organoleptic uses thereof and process for preparing same | Richard M. Boden, Marie R. Hanna | 1984-10-30 |
| 4478743 | Organoleptic uses of norbornyl oxyacetaldehyde | Richard M. Boden, Marie R. Hanna | 1984-10-23 |
| 4476042 | Mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives, organoleptic uses thereof and processes for preparing same | Mark A. Sprecker, Marie R. Hanna, Richard J. Tokarzewski, Hugh Watkins, Manfred H. Vock | 1984-10-09 |