Birkholz; Ulrich
Patent Applications and Registrations
Patent applications and USPTO patent grants for Birkholz; Ulrich.The latest application filed is for "plug connection for jaw stump models".
- Birkholz; Ulrich - Grosskrotzenburg DE
- Birkholz; Ulrich - Bayreuth DE
- Birkholz; Ulrich - Nurenberg DE
| Patent | Date |
|---|---|
| Plug connection for jaw stump models Grant 6,672,869 - Rabenstein , et al. January 6, 2 | 2004-01-06 |
| Plug connection for jaw stump models App 20020049009 - Rabenstein, Norbert ; et al. | 2002-04-25 |
| Apparatus for srewing a cover onto a screw neck of a hearing aid Grant 4,840,249 - Birkholz , et al. June 20, 1 | 1989-06-20 |
| Method and apparatus for producing an ear impression Grant 4,834,927 - Birkholz , et al. May 30, 1 | 1989-05-30 |
| Method and apparatus for the manufacture of an otoplastic shell Grant 4,828,777 - Birkholz May 9, 1 | 1989-05-09 |
| Hearing aid Grant 4,739,512 - Hartl , et al. April 19, 1 | 1988-04-19 |
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