Issued Patents All Time
Showing 51–75 of 145 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5600006 | Bis(diarylalkyl)phosphines | Dieter Regnat | 1997-02-04 |
| 5587243 | Epoxy resin mixtures containing phosphonic/phosphinic acid anhydride adducts | Wolfgang von Gentzkow, J urgen Huber, Heinrich Kapitza, Wolfgang Rogler, Dieter Wilhelm | 1996-12-24 |
| RE35389 | Process for the preparation of N-phosphonomethylglycine | — | 1996-12-03 |
| 5510554 | Process for preparing 1,1'-binaphthyls | Dieter Regnat | 1996-04-23 |
| 5502231 | Process for the preparation of cyclic vinylphosphonic esters | Fritz Engelhardt, Ulrich Riegel | 1996-03-26 |
| 5502261 | Process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl | Dieter Regnat, Horst Ro/ schert | 1996-03-26 |
| 5498797 | Bis(phosphinozlkoxy)biaryl compounds and a process for their preparation | Dieter Regnat | 1996-03-12 |
| 5498741 | Alkyl aryl arylphosphonites, process for the preparation thereof and use thereof | — | 1996-03-12 |
| 5494993 | Low-pill, low-flammability polyesters, production thereof and structures formed therefrom | Volker Freudenberger, Peter Klein | 1996-02-27 |
| 5481017 | Method for preparing 6H-dibenzo[c,e][1,2]oxaphosphorin-6-one | — | 1996-01-02 |
| 5432291 | Preparation of acylaminomethanephosphonic acids and acylaminomethanephosphinic acids | — | 1995-07-11 |
| 5407969 | Acyl-(2'-hydroxybiphenyl-2-yl)-phosphinic acid salts, their preparation and use | Joachim Gersdorf, Udo Bastian | 1995-04-18 |
| 5391798 | Process for preparing 6-chloro-(6H)-dibenz [C,-E][1,2]- oxaphosphorin | — | 1995-02-21 |
| 5356967 | 6-aryl-6H-dibenzo[c,e][1,2]oxaphosphorine stabilizers for plastics | Manfred Bohshar, Gerhard Pfahler | 1994-10-18 |
| 5319138 | Process for the preparation of pure propanephosphonic anhydride | Gunter Roscher, Harald Berger, Manfred Schmidt, Rainer Uhmann, Dirk Bottger | 1994-06-07 |
| 5298541 | Aryl phosphonites, a process for their production and their use for stabilizing plastics | Manfred Bohshar, Gerhard Pfahler | 1994-03-29 |
| 5298644 | Aryl phosphinites | Dieter Regnat | 1994-03-29 |
| 5283350 | Aryl esters of phosphonous halides and a process for the preparation thereof | Manfred Bohshar | 1994-02-01 |
| 5281640 | Diarylphosphinous acid aryl esters, a process for their preparation and their use for stabilizing plastics | Dieter Regnat, Manfred Bohshar, Gerhard Pfahler | 1994-01-25 |
| 5225243 | Fiber-reinforced composite materials and process for their preparation | Martin Bruck, Tilo Vaahs, Marcellus Peuckert | 1993-07-06 |
| 5219972 | Process for the preparation of polymeric chlorosilazanes | Thilo Vaahs | 1993-06-15 |
| 5210260 | Process for obtaining bis(2,4-di-tert-butylphenyl) halophosphites | Manfred Bohshar | 1993-05-11 |
| 5189132 | Polymeric hydridochlorosilazanes, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufacture | Tilo Vaahs, Thomas Gerdau, Marcellus Peuckert, Martin Bruck | 1993-02-23 |
| 5187252 | Silazane polymers containing SiCl groups, process for their preparation, silicon nitride-containing ceramic materials which can be prepared from them, and their preparation | Tilo Vaahs, Martin Bruck | 1993-02-16 |
| 5176941 | Process of producing a ceramic/fiber composite using a molten polysilazone | Marcellus Peuckert, Martin Bruck, Thomas Gerdau, Tilo Vaahs, Fritz Aldinger | 1993-01-05 |