Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5538018 | Cigarette smoking products containing a vanillin-release additive | W. Geoffrey Chan, Ernst K. Just, Makram H. Meshreki, Susan S. Tafur | 1996-07-23 |
| 5301693 | Smoking compositions containing an .alpha.-alkylcinnamaldehyde-release additive | W. Geoffrey Chan, William B. Edwards, III, Harvey J. Grubbs, Charles R. Howe, John D. Naworal +5 more | 1994-04-12 |
| 5228461 | Smoking compositions containing a vanillin-release additive | W. Geoffrey Chan, Harvey J. Grubbs, Kenneth F. Podraza, Edward B. Sanders | 1993-07-20 |
| 5218118 | Smoking compositions containing a pyrazine-ethanol flavorant-release additive | W. Geoffrey Chan | 1993-06-08 |
| 5199450 | Smoking compositions containing a tartrate salt flavorant-release additive | John D. Naworal | 1993-04-06 |
| 5174308 | Smoking compositions containing a pyrazineethanol flavorant-release additive | W. Geoffrey Chan | 1992-12-29 |
| 5172704 | Smoking compositions containing a vanillin-release additive | W. Geoffrey Chan, Harvey J. Grubbs, Kenneth F. Podraza, Edward B. Sanders | 1992-12-22 |
| 5148817 | Smoking compositions | Harvey J. Grubbs | 1992-09-22 |
| 5129954 | Beta-hydroxyesters for use as vanillin-release additives in smoking compositions | W. Geoffrey Chan, John B. Paine, III, Kenneth F. Podraza | 1992-07-14 |
| 5120368 | Vanillin 5-hydroxyesters and smoking compositions containing a vanillin-release additive | Kenneth F. Podraza, Everett W. Southwick | 1992-06-09 |
| 5080719 | Smoking compositions containing a heteroaromatic flavorant-release additive | Henry V. Secor, Jeffrey I. Seeman | 1992-01-14 |
| 4872918 | Heterocyclic esters and smoking compositions containing a heterocyclic ester flavorant-release additive | Kenneth F. Podraza | 1989-10-10 |
| 4859775 | Process for preparing acylpyrazine ethers | David L. Williams, Everett W. Southwick | 1989-08-22 |
| 4728738 | Smoking compositions containing acylpyrazine ether flavorants | David L. Williams, Everett W. Southwick | 1988-03-01 |
| 4701282 | .beta.-hydroxy-.gamma.-ketoester flavorant-release additives | W. Geoffrey Chan | 1987-10-20 |
| 4635652 | Smoking composition containing a novel monoacylpyrazine flavorant | Everett W. Southwick, David L. Williams | 1987-01-13 |
| 4620004 | Polyheterocyclic compounds | Edward B. Sanders | 1986-10-28 |
| 4607118 | Flavor-release .beta.-hydroxy-ester compositions | Harvey J. Grubbs | 1986-08-19 |
| 4592373 | Smoking compositions | Harvey J. Grubbs | 1986-06-03 |
| 4588813 | 1-pyrazinyl-1-propanone derivatives useful as flavorants in smoking compositions | Everett W. Southwick, David L. Williams | 1986-05-13 |
| 4561451 | 1,4-Diacylpiperazine flavored smoking compositions | William B. Edwards, III | 1985-12-31 |
| 4540004 | Smoking compositions containing a flavorant-release additive | Kenneth F. Podraza | 1985-09-10 |
| 4538627 | Smoking compositions containing a .beta.-hydroxy-.gamma.-ketoester flavorant-release additive | W. Geoffrey Chan | 1985-09-03 |
| 4535791 | Smoking compositions containing acylpyrazine ether flavorants | David L. Williams, Everett W. Southwick | 1985-08-20 |
| 4509537 | Smoking compositions | Kenneth F. Podraza | 1985-04-09 |