Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5750786 | Process for the preparation of unsubstituted and substituted diaryl phenylenediamines | — | 1998-05-12 |
| 5504159 | High molecular weight amine containing antiozonants | Joseph A. Kuczkowski, Paul Harry Sandstrom, George Frank Balogh | 1996-04-02 |
| 5280071 | High molecular weight amine containing antiozonants | Joseph A. Kuczkowski, Paul Harry Sandstrom, George Frank Balogh | 1994-01-18 |
| 5155148 | Ester derivatives from p-hydroxydiphenylamine | Dane K. Parker | 1992-10-13 |
| 5069819 | Thioesters and antioxidant compositions containing the same | Joseph A. Kuczkowski | 1991-12-03 |
| 4735980 | Methylene bis(alkylsulfides) as antioxidant synergists in rubber | Joseph A. Kuczkowski, Joel Muse, Jr. | 1988-04-05 |
| 4707300 | Autosynergistic phenolic antioxidant reaction product | Joseph A. Kuczkowski | 1987-11-17 |
| 4683332 | Para-nitrodiphenylamine synthesis | — | 1987-07-28 |
| 4435599 | Para-nitrodiphenylamine synthesis | — | 1984-03-06 |
| 4350818 | Preparation of 2-(isopropylsulfinyl)benzothiazole | Roger J. Hopper, Joseph F. Geiser | 1982-09-21 |
| 4280967 | Vulcanization of rubber with 2-(alkylsulfinyl)-benzothiazoles | Roger J. Hopper, Joseph F. Geiser | 1981-07-28 |