Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665211 | Electrolysis apparatus for producing hydrogen | Jukka-Pekka Nieminen | 1997-09-09 |
JL
Jyrki Rainer Leppanen
Overall (1997): #123,923 of 185,788Top 70%
1
Patents 1997