Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7635785 | Process for preparation of dialkylphosphinic salts | Harald Bauer, Werner Krause, Martin Sicken | 2009-12-22 |
| 7446140 | Dialkylphosphinic salts, their use, and a process for their preparation | Harald Bauer, Werner Krause, Martin Sicken | 2008-11-04 |
| 7420007 | Dialkylphosphinic salts | Harald Bauer, Werner Krause, Martin Sicken | 2008-09-02 |
| 7348396 | Modified polyethylenephosphinic acids and their salts | Martin Sicken, Werner Krause, Hans-Peter Schmitz | 2008-03-25 |
| 7129320 | Modified polyethylenephosphinic acids and their salts | Martin Sicken, Werner Krause, Hans-Peter Schmitz | 2006-10-31 |
| 6815558 | Process for preparing (metal) alkylphosphonites II | — | 2004-11-09 |
| 6806383 | Process for preparing (metal) alkylphosphonites I | Martin Sicken | 2004-10-19 |
| 6770779 | Process for preparing alkylphosphonite esters | Martin Sicken, Hans-Peter Schmitz, Gunter Kolbe | 2004-08-03 |
| 6727335 | Polymeric phosphinic acids and salts thereof | Martin Sicken, Hans-Peter Schmitz | 2004-04-27 |
| 6583315 | Process for preparing ethanebis(alkylphosphinic) acids | Martin Sicken, Hans-Peter Schmitz | 2003-06-24 |
| 6569974 | Polymeric phosphinic acids and salts thereof | Martin Sicken, Hans-Peter Schmitz | 2003-05-27 |
| 6534673 | Process for preparing salts of dialkylphosphinic acids | Hans-Peter Schmitz, Gunter Kolbe | 2003-03-18 |
| 6420598 | Process for preparing alkylphosphonic acids | Martin Sicken, Hans-Peter Schmitz | 2002-07-16 |
| 6359171 | Process for preparing dialkylphosphinic acids and their salts | Martin Sicken, Gunter Kolbe, Hans-Peter Schmitz | 2002-03-19 |
| 6355832 | Processing for preparing salts of dialkylphosphinic acids | Hans-Peter Schmitz, Gunter Kolbe | 2002-03-12 |
| 6329544 | Process for preparing dialkylphosphinic acids | Hans-Peter Schmitz, Gunter Kolbe | 2001-12-11 |
| 6300516 | Process for preparing dialkylphosphinic acids | Hans-Peter Schmitz, Gunter Kolbe | 2001-10-09 |
| 6278012 | Process for preparing phosphinate esters | Sebastian Hörold, Heinz-Peter Breuer, Martin Sicken | 2001-08-21 |
| 6242642 | Process for preparing arylalphosphinic acids | Hans-Peter Schmitz | 2001-06-05 |
| 6232493 | Process for preparing metal salts of arylalkylphosphinic acids | Hans-Peter Schmitz | 2001-05-15 |
| 6090967 | Process for preparing phosphonous esters | Sebastian Hörold, Heinz-Peter Breuer | 2000-07-18 |
| 6090968 | Process for preparing phosphinic esters | Sebastian Hörold, Heinz-Peter Breuer | 2000-07-18 |
| 6011172 | Process for alkylating elemental phosphorus | Othmar Stelzer, Gunter Kolbe | 2000-01-04 |
| 5973194 | Process for preparing dialkylphosphinate salts | Hans-Peter Schmitz, Gunter Kolbe | 1999-10-26 |
| 5925785 | Secondary and tertiary phosphines and processes for their preparation | Othmar Stelzer, Oliver Herd | 1999-07-20 |