Issued Patents All Time
Showing 51–75 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999588 | Integratable amplitude-regulated oscillator circuit | — | 1991-03-12 |
| 4969907 | Metal bone implant | Otto Frey | 1990-11-13 |
| 4969904 | Bone implant | Erhard Heisig | 1990-11-13 |
| 4961748 | Sleeve for an acetabulum | Otto Frey | 1990-10-09 |
| 4955911 | Bone implant | Otto Frey | 1990-09-11 |
| 4955908 | Metallic intervertebral prosthesis | Otto Frey | 1990-09-11 |
| 4944763 | Fixing stem for a prosthesis | Hans-Georg Willert | 1990-07-31 |
| 4944761 | Blade-like stem for a femoral head prosthesis | Karl-Gerhart Stuhmer | 1990-07-31 |
| 4938770 | Stem for a femoral head prosthesis | Otto Frey | 1990-07-03 |
| 4932969 | Joint endoprosthesis | Otto Frey, Heinrich Planck | 1990-06-12 |
| 4923473 | Hemispherical acetabulum | Peter Griss | 1990-05-08 |
| 4919677 | Prosthetic acetabulum | Karl-Gerhart Stubmer, Otto Frey | 1990-04-24 |
| 4919676 | Metal shell for an artificial hip joint socket | K. Zweymuller | 1990-04-24 |
| 4917704 | Intervertebral prosthesis | Otto Frey | 1990-04-17 |
| 4908033 | Hip joint acetabulum | Otto Frey | 1990-03-13 |
| 4906943 | Differential operational amplifier with common mode feedback | — | 1990-03-06 |
| 4883492 | Metal bone implant | Otto Frey | 1989-11-28 |
| 4841222 | Switched Current source | — | 1989-06-20 |
| 4795466 | Artificial crucial ligament for a knee joint | Karl-Gerhart Stuhmer, Otto Frey | 1989-01-03 |
| 4793335 | Bone implant for fixing artificial tendons or ligaments with application and extraction means | Otto Frey | 1988-12-27 |
| 4787909 | Shank for a femur head prosthesis | Otto Frey | 1988-11-29 |
| 4776328 | Bone nail and an instrument for implanting a bone nail | Otto Frey | 1988-10-11 |
| 4745914 | Medullary cavity barrier | Otto Frey | 1988-05-24 |
| 4717869 | Controlled current source apparatus for signals of either polarity | Eberhard Schmid | 1988-01-05 |
| 4670005 | Centrifuge with a self-emptying drum | Werner Kohlstette | 1987-06-02 |