Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338322 | Process for converting heavy oil deposited on coal to distillable oil in a low severity process | Teresa Ignasiak, Otto P. Strausz, Boleslaw Ignasiak, Jerzy S. Janiak, Wanda Pawlak +1 more | 1994-08-16 |
| 5019245 | Method for recovery of hydrocarbons form contaminated soil or refuse materials | Teresa Ignasiak, Wanda Pawlak, Boleslaw Ignasiak, Carlos R. Guerra, Melvin L. Zwillenberg | 1991-05-28 |
| 4966608 | Process for removing pyritic sulfur from bituminous coals | Wanda Pawlak, Jerzy S. Janiak, Boleslaw Ignasiak | 1990-10-30 |
| 4854940 | Method for providing improved solid fuels from agglomerated subbituminous coal | Jerzy S. Janiak, Wanda Pawlak, Boleslaw Ignasiak | 1989-08-08 |