Issued Patents All Time
Showing 101–125 of 126 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835596 | Transistor with a high collector-emitter breakthrough voltage | — | 1989-05-30 |
| 4816224 | Device for separating plasma or serum from whole blood and analyzing the same | Peter Vogel, Hans-Peter Braun, Dieter Berger | 1989-03-28 |
| 4800128 | Chemical attack-resistant, liquid-tight lining | Eckhard Schacht, Dieter Velte, Albert E. Wolf | 1989-01-24 |
| 4783765 | Bipolar memory cell with cross-connected transistors and an external capacitance | — | 1988-11-08 |
| 4749648 | Agent for the determination of esterolytic and/or proteolytic enzymes | Dieter Berger, Gunter Frey, Wolfgang-Reinhold Knappe, Manfred Kuhr, Walter Rittersdorf | 1988-06-07 |
| 4743559 | Method for the determination of redox reactions using iodate to eliminate ascorbic acid interference | Laszlo Koever, Walter Rittersdorf | 1988-05-10 |
| 4638023 | Process for the production of reagent films and reagent films produced thereby | Heinz-Freidrich Trasch, Anselm Rothe, Bernward Sojka, Hans Wielinger | 1987-01-20 |
| 4605629 | Method of eluting reagent from reagent strips for chemical analyses and reagent strip therefor | Hans Lange, Edda Geisler | 1986-08-12 |
| 4551428 | Agent for the determination of esterolytic and/or proteolytic enzymes | Dieter Berger, Gunter Frey, Wolfgang-Reinhold Knappe, Manfred Kuhr, Walter Rittersdorf | 1985-11-05 |
| 4477575 | Process and composition for separating plasma or serum from whole blood | Peter Vogel, Hans-Peter Braun, Dieter Berger | 1984-10-16 |
| 4469789 | Amino acid and peptide esters of leuko-indoaniline compounds and compositions for the detection of proteolytic enzymes | Dieter Berger, Franz-Josef Braun, Gunter Frey, Wolfgang-Reinhold Knappe, Manfred Kuhr | 1984-09-04 |
| 4385114 | Oxidation indicators comprising 3,3',5,5'-tetraalkylbenzidine compounds | Werner Guthlein, Walter Rittersdorf, Hugo Tiedemann, Peter Vogel | 1983-05-24 |
| 4331760 | Diagnostic agent for the detection of leukocytes and chromogens useful therein | Dieter Berger, Franz-Josef Braun, Gunter Frey, Werner Guthlein | 1982-05-25 |
| 4312834 | Diagnostic agent for the detection of component materials in liquid and process for producing same | Peter Vogel, Hans-Peter Braun, Dieter Berger | 1982-01-26 |
| 4299917 | Diagnostic agents for the detection of leukocytes in body fluids | Dieter Berger, Gunter Frey, Manfred Kuhr | 1981-11-10 |
| 4297271 | Guaiaconic acid A from guaiac resin | Werner Guthlein, Hans Wielinger, Walter Rittersdorf | 1981-10-27 |
| 4278763 | Diagnostic agents for the detection of proteolytic enzymes | Dieter Berger, Franz-Josef Braun, Werner Guthlein, Manfred Kuhr | 1981-07-14 |
| 4260777 | Diagnostic agent for the detection of protein in body fluids | Walter Rittersdorf, Werner Guthlein, Hanz-Georg Rey, Peter Rieckmann | 1981-04-07 |
| 4250256 | Microbiological test device | Hans Wielinger, Walter Rittersdorf, Manfred Bleisteiner, Gerd Zimmermann, Wolfgang Vomel | 1981-02-10 |
| 4245096 | Bis-(2,4-dinitrophenyl)-methyl-pyridinium and quinolinium compounds | Anselm Rothe, Werner Guthlein, Walter Rittersdorf | 1981-01-13 |
| 4224277 | Coated slides and apparatus for coating same | Heinz Macho, Hans Lange, Dieter Berger | 1980-09-23 |
| 4223089 | Process and diagnostic device for the determination of ammonia and of substrates which react with the formation of ammonia | Anselm Rothe, Adolf K. Selle, Hans Lange, Walter Rittersdorf | 1980-09-16 |
| 4220713 | Stabilized diagnostic agent | Walter Rittersdorf, Hugo Tiedmann, Hans Wielinger | 1980-09-02 |
| 4220961 | Monolithic combination of two complementary bipolar transistors | — | 1980-09-02 |
| 4219336 | Diagnostic agent and method for the detection of occult blood in feces | Werner Guthlein, Hans Wielinger, Walter Rittersdorf | 1980-08-26 |