Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5042588 | Lifting strut for a tractor | Paul Herchenbach, Helmut Kamp | 1991-08-27 |
| 5030942 | Process and device for measuring and indicating load conditions in drivelines of agricultural implements | Clemens Nienhaus | 1991-07-09 |
| 4963465 | Color photographic negative recording material | Reinhart Matejec, Ralf Buscher | 1990-10-16 |
| 4953411 | Angular bevel gear drive for agricultural implements | Karl Coenen, Michael Flanhardt | 1990-09-04 |
| 4944354 | Three-point coupling device | Norbert Fartmann, Herbert Coenen | 1990-07-31 |
| 4943519 | Light sensitive, stabilized photographic recording material | Gunter Helling, Johannes Sobel | 1990-07-24 |
| 4939079 | Photographic recording material | Erich Wolff, Wolfgang Himmelmann, Gunter Helling | 1990-07-03 |
| 4859368 | Process for the containment of materials in a ceramic matrix through the chemical precipitation of a hydrosol of the matrix | Erich Zimmer, Kurt Scharf | 1989-08-22 |
| 4756998 | Polymeric couplers and light-sensitive photographic silver halide recording material containing such couplers | Gunter Helling, Friedrich-Wilhelm Kunitz | 1988-07-12 |
| 4749643 | Photographic recording element containing a UV absorbent and a silver halide emulsion layer | Hans Ohlschlager, Johannes Sobel | 1988-06-07 |
| 4738919 | Photosensitive photographic silver halide recording material | Gerd Krauss, Gunter Renner, Erich Wolff, Werner Krafft | 1988-04-19 |
| 4710454 | Photographic recording material and a process for the production of photographic images | Heinz-Dieter Schutz, Ubbo Wernicke, Wolfgang Himmelmann, Gunter Renner | 1987-12-01 |
| 4617255 | Color coupler-containing photographic material | Erich Wolff, Rudolf Braden | 1986-10-14 |
| 4576907 | Color-photographic recording material | Helmut Kampfer, Erwin Ranz | 1986-03-18 |
| 4459130 | Solid preparation of water-soluble acid dye and polymer particles with quaternary ammonium or phosphonium groups | Gunter Helling, Hans hlschlager | 1984-07-10 |
| 4430030 | Operating process for the formation of a steady particle stream of particles conveyed within a flow conduit by a flow medium and arrangement for effectuation of the process | Helmut Ringel | 1984-02-07 |
| 4418142 | Light-sensitive photographic silver halide recording material | Erich Wolff, Erwin Ranz | 1983-11-29 |
| 4414309 | Photographic recording material containing an aldehyde remover | Lothar Rosenhahn, Erich Wolff | 1983-11-08 |
| 4368259 | Color photographic recording material containing an emulsified, hydrophilic color-forming compound | Fritz Nittel, Erwin Ranz | 1983-01-11 |
| 4366221 | Photographic recording material and new merocyanines | Hans Ohlschlager | 1982-12-28 |
| 4236299 | Method and device for winding spiral fins onto oval tubing | Alfred Joekel, Peter Denner | 1980-12-02 |
| 4224258 | Method and apparatus for producing spherical particles of uniform size of nuclear fuels or breeder materials | Paul Naefe, Helmut Ringel | 1980-09-23 |
| 4218159 | Multiple-part hobbing cutter | — | 1980-08-19 |
| 4193953 | Hydrosol droplet casting process for production of nuclear fuel and breeder material granules | Helmut Ringel, Erich Zimmer | 1980-03-18 |