Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5925758 | HALS phosphites and HALS phosphoramides as stabilizers | — | 1999-07-20 |
| 5844024 | Cyclic diphenylacetonitriles as stabilizers | — | 1998-12-01 |
| 5817821 | Mixtures of polyalkylpiperidin-4-yl dicarboxylic acid esters as stabilizers for organic materials | Andreas Valet | 1998-10-06 |
| 5777008 | Oligomeric hals phosphites and hals phosphonites as stabilisers | — | 1998-07-07 |
| 5777113 | Hals phosphorinanes as stabilisers | — | 1998-07-07 |
| 5710198 | Cyclic diphenylacetonitriles as stabilizers | — | 1998-01-20 |
| 5670642 | Hals phosphoramides as stabilisers | — | 1997-09-23 |
| 5665273 | Hals phosphonites as stabilizers | Michael Rasberger | 1997-09-09 |
| 5654430 | Oligomeric aliphatic HALS phosphites and HALS phosphonites as stabilizers | — | 1997-08-05 |
| 5616780 | Bisphenol ester derivatives | Bernard Gilg | 1997-04-01 |
| 5602196 | Bisphenol ester derivatives | Bernard Gilg | 1997-02-11 |
| 5521237 | Alkanolamine esters of acyclic phosphites in polyolefin compositions | Raymond Seltzer, Wha Chen, Roswell E. King, III, Paul A. Odorisio, Sai P. Shum | 1996-05-28 |
| 5510402 | Carboxylic acid esters of hydroxyphenylalkanols as stabilizers | Paul Dubs | 1996-04-23 |
| 5473003 | Alkanediphenols | Paul Dubs, Bernard Gilg | 1995-12-05 |
| 5449777 | Phenolic s-triazines | — | 1995-09-12 |
| 5442067 | Tetra-[N-alkyl-2,2,6,6,-tetramethylpiperidin-4-yl]-4,4'-diphenylbis phosphonite | — | 1995-08-15 |
| 5405891 | Oligomeric HALS phosphites and HALS phosphonites as stabilisers | — | 1995-04-11 |
| 5401845 | Asymmetric aryl phosphites | Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke | 1995-03-28 |
| 5356976 | 2,4-dialkyl-6-sec- alkylphenols | Paul Dubs | 1994-10-18 |
| 5322871 | Asymmetric aryl phosphites | Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke | 1994-06-21 |
| 5177246 | Hydroxphenylcarboxylic acid esters as stabilizers | — | 1993-01-05 |
| 5175312 | 3-phenylbenzofuran-2-ones | Paul Dubs | 1992-12-29 |
| 5167846 | Sulfoxides of bisthiomethylated and tristhiomethylated phenols | Hans-Rudolf Meier | 1992-12-01 |
| 5098945 | 2,4-dimethyl-6-s-alkylphenols | Paul Dubs | 1992-03-24 |
| 4820756 | Thioether substituted phenols and their use as stabilizers | Paul Dubs | 1989-04-11 |