Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403954 | Preparation of methyltris(m-sulfonatophenyl) phosphonium iodide trisodium salt and use thereof in carbonylation reactions to prepare carboxylic acids and/or their esters | Peter Heymanns, Andreas Seidel, Hermann Berwe | 1995-04-04 |
| 5380929 | Process for the preparation of acetic acid and acetic anhydride | Heinz Erpenbach, Klaus Gehrmann, Georg Kohl | 1995-01-10 |
| 5326897 | Process for the stabilization of ethanolic ethylmagnesium carbonate solutions | Andreas Seidel, Karen Pottkamper | 1994-07-05 |
| 5306398 | Process for the purification of waste acetic acid | Andreas Seidel, Alfred Hauser | 1994-04-26 |
| 5166452 | Process for inhibiting and destroying peroxides in dialkyl ethers | Reinhard Gradl, Heinz Erpenbach, Norbert Weferling | 1992-11-24 |
| 5124290 | Process for removing metallic corrosion products from carbonylation reactions carried out under anhydrous conditions | Heinz Erpenbach, Reinhard Gradl, Andreas Seidel, Peter Prinz | 1992-06-23 |
| 5075485 | Process for the preparation of N-acylphosphinothricin diesters | Manfred Bohshar, Heinz Erpenbach, Hanss-Jerg Kleiner, Hans-Peter Koll | 1991-12-24 |
| 4898966 | Process for the preparation of phenylalanine n-propyl ester hydrochloride | Heinz Erpenbach, Klaus Gehrmann, Peter Horstermann, Georg Kohl | 1990-02-06 |
| 4529560 | Process for making acetic anhydride | Wilhelm Vogt, Hermann Glaser | 1985-07-16 |
| 4497747 | Process for making acetic anhydride | Wilhelm Vogt, Hermann Glaser | 1985-02-05 |