Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866087 | Calixarene derivatives, their preparation process and their use for extracting actinides and lanthanides | Jean-François Dozol, Hélène Rouquette, Volker Bohmer, Cordula Gruttner, Ralf A. Jakobi +1 more | 1999-02-02 |
| 4981064 | Fingerboard for plucked and stringed instruments | — | 1991-01-01 |
| 4723469 | Fret for the fingerboard of plucked stringed instruments | — | 1988-02-09 |
| 4620470 | Fingerboard for stringed instruments | — | 1986-11-04 |