Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674324 | Method for highly efficient heating system of hydrocarbon contaminated soils and effective removal of volatile hydrocarbons | — | 1997-10-07 |
| 5534158 | Method for clean-up of soils or refuse materials contaminated with highly viscous coal or petroleum derived tars/oils | — | 1996-07-09 |
| 5338322 | Process for converting heavy oil deposited on coal to distillable oil in a low severity process | Otto P. Strausz, Boleslaw Ignasiak, Jerzy S. Janiak, Wanda Pawlak, Kazimierz Szymocha +1 more | 1994-08-16 |
| 5019245 | Method for recovery of hydrocarbons form contaminated soil or refuse materials | Ali A. Turak, Wanda Pawlak, Boleslaw Ignasiak, Carlos R. Guerra, Melvin L. Zwillenberg | 1991-05-28 |