Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5574163 | Process for the preparation of N-oxyl hindered amine esters | — | 1996-11-12 |
| 5439955 | 2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydrox y-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions | Robert A. Falk, Gregory R. Coughlin | 1995-08-08 |
| 5387691 | 2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydroxy-3-benzoyl-6-alko xybenzyl)phenols and stabilized compositions | Robert A. Falk, Gregory R. Coughlin | 1995-02-07 |
| 5198134 | Substituted naphthalenediamine stabilizers | David H. Steinberg | 1993-03-30 |
| 5147568 | Substituted 2,3-dihydroperimidine stabilizers | David H. Steinberg | 1992-09-15 |
| 5012003 | Process for preparing dithiobisphenols | David H. Steinberg | 1991-04-30 |
| 4898980 | Process for preparing dithiobisphenols | Linda A. Benjamin, Stephen D. Pastor | 1990-02-06 |
| 4618440 | Substituted 4-hydroxybenzylthio aldehyde and ketone stabilizers | David H. Steinberg, Frank P. Cortolano | 1986-10-21 |
| 4534874 | Anti-oxidative, anti-thermal, and anti-actinic degradation amides of hydroxyphenylalkylthio alkanoic acids, compositions, and method of use therefor | David H. Steinberg, Raymond Seltzer, Frank P. Cortolano | 1985-08-13 |
| 4219464 | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chester E. Ramey | 1980-08-26 |
| 4208522 | Substituted piperazine diones | Chester E. Ramey | 1980-06-17 |
| 4191682 | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chester E. Ramey | 1980-03-04 |
| 4191829 | Hindered piperidine carboxylic acids and metal salts thereof | Chester E. Ramey | 1980-03-04 |