Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665211 | Electrolysis apparatus for producing hydrogen | Jyrki Rainer Leppanen | 1997-09-09 |
JN
Jukka-Pekka Nieminen
Overall (1997): #124,349 of 185,788Top 70%
1
Patents 1997