Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651923 | Heat extractor | Dan Ben-Shmuel | 1987-03-24 |
| 4606399 | Heat recovery system with combustion gas accelerator | — | 1986-08-19 |
| 4497439 | Heat extractor | Dan Ben-Shmuel | 1985-02-05 |
| 4340572 | Process for recovering heat from stack or flue gas | Dan Ben-Shmuel | 1982-07-20 |