Issued Patents All Time
Showing 26–50 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7115553 | Acetonide fragrance compound | Michael G. Monteleone, Manfred Pawlak, Catherine Marie Smith, Mark A. Sprecker | 2006-10-03 |
| 7026279 | Use of 3-(methoxymethyl)-2-pentylcyclopenta derivatives in perfume compositions | Michael G. Monteleone, Matthew J. Clements, Louis J. Croce, Manfred Pawlak | 2006-04-11 |
| 6919477 | Fruity musk compositions | James O. Bledsoe, Jr., Michael Britten-Kelly, Mark A. Sprecker, Manfred Pawlak, Michael G. Monteleone | 2005-07-19 |
| 6774260 | Fruity musk compositions | James O. Bledsoe, Jr., Michael Britten-Kelly, Mark A. Sprecker, Manfred Pawlak, Michael G. Monteleone | 2004-08-10 |
| 6362141 | Indanyl derivatives | Mark A. Sprecker, Richard A. Weiss, Ellen Ann Molner | 2002-03-26 |
| 6342612 | Indane aldehydes and derivatives | Mark A. Sprecker, Richard A. Weiss, Ellen Ann Molner | 2002-01-29 |
| 6303798 | Methylene dioxy tetrahydroindane derivative | Mark A. Sprecker, Charles E. J. Beck | 2001-10-16 |
| 5693828 | Process for preparing lactones and intermediates therefor | — | 1997-12-02 |
| 5378685 | Process for preparing mixture of trimethyl and dimethylmethylene propyl polyhydropyrans, products produced thereby perfumery uses of such product | Mark A. Sprecker, Marie R. Hanna | 1995-01-03 |
| 5137869 | Methyl substituted tetrahydroindanone and perfumery uses thereof | Mark A. Sprecker, Eleanor Fox, Alphonsus P. M. Maas, Djurre Sijbren Postma | 1992-08-11 |
| 5097046 | Process for preparing alkyl substituted tetra- or hexahydrobenzopyran derivatives | Mark A. Sprecker, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato | 1992-03-17 |
| 5077273 | Epoxyoctahydrodimethylacetonaphthones, and perfumery uses thereof | Mark A. Sprecker, Kathleen E. Boardwick | 1991-12-31 |
| 5030618 | Alkyl-substituted tetra- or hexahydrobenzopyran derivatives, organoleptic uses thereof and process for preparing same | Mark A. Sprecker, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato | 1991-07-09 |
| 5023352 | Alkyl-substituted tetra- or hexahydrobenzopyran derivatives, organoleptic uses thereof and process for preparing same | Mark A. Sprecker, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato | 1991-06-11 |
| 4999439 | Alkyl-substituted tetra- or hexahydrobenzopyran derivatives, organoleptic uses thereof and process for preparing same | Mark A. Sprecker, Marie R. Hanna, Charles E. J. Beck, Salvatore M. Brucato | 1991-03-12 |
| 4962090 | 2,4-disubstituted and 2,2,4-trisubstituted tetrahydropyranyl-4-ethers, process for preparing same and perfumery uses thereof | Mark A. Sprecker, Salvatore M. Brucato, Charles E. J. Beck, Marie R. Hanna | 1990-10-09 |
| 4933320 | 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 | 1990-06-12 |
| 4933319 | Substituted tetrahydroindane derivatives and organoleptic uses of substituted tetrahydroindanes | Mark A. Sprecker, Charles E. J. Beck | 1990-06-12 |
| 4933321 | Triisobutylene alcohols and esters, uses thereof in perfumery and halogenated intermediates useful for preparing same | Mark A. Sprecker, Marie R. Hanna | 1990-06-12 |
| 4933488 | Triisobutylene alcohols and esters, uses thereof in perfumery and halogenated intermediates useful for preparing same | Mark A. Sprecker, Marie R. Hanna | 1990-06-12 |
| 4924026 | Triisobutylene alcohols and esters, uses thereof in perfumery and halogenated intermediates useful for preparing same | Mark A. Sprecker, Marie R. Hanna | 1990-05-08 |
| 4902840 | Substituted tetrahydroindane derivatives and organoleptic uses of substituted tetrahydroindanes | Mark A. Sprecker, Charles E. J. Beck | 1990-02-20 |
| 4902672 | Polyalkyl indanyl n-propyl and allyl ethers and perfumery uses thereof | Mark A. Sprecker, Ronald S. Fenn | 1990-02-20 |
| 4780564 | Allyl 4-cyclooctenyl glycolate, organoleptic uses thereof, process for preparing same and intermediates useful in said process | Mark A. Sprecker, William L. Schreiber | 1988-10-25 |
| 4772583 | Beta-alkylidene phenethyl alcohol esters and ethers, organoleptic uses thereof and processes for preparing same | Mark A. Sprecker, Richard M. Boden, Marie R. Hanna | 1988-09-20 |