Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415959 | Upgrading residues, heavy oils and plastics | Leonard James Humphreys | 2025-09-16 |
| 12409437 | Biorefining method | Robert Downie, Leonard James Humphreys, Thomas Maschmeyer | 2025-09-09 |
| 12286592 | Process and apparatus for converting polymers into products | Richard Daley | 2025-04-29 |
| 11834783 | Integrated kraft pulp mill and thermochemical conversion system | Leonard James Humphreys, Robert William Clayton Thew, James Allan Spankie, Victor Charles Uloth, Paul Watson +1 more | 2023-12-05 |
| 11826722 | Biorefining method | Robert Downie, Leonard James Humphreys, Thomas Maschmeyer | 2023-11-28 |
| 11339330 | Method and apparatus for producing biofuel | Leonard James Humphreys | 2022-05-24 |
| 11306435 | Integrated Kraft pulp mill and thermochemical conversion system | Leonard James Humphreys, Robert William Clayton Thew, James Allan Spankie, Victor Charles Uloth, Paul Watson +1 more | 2022-04-19 |
| 10751690 | Biorefining method | Robert Downie, Leonard James Humphreys, Thomas Maschmeyer | 2020-08-25 |
| 10450701 | Pulping liquors and uses thereof | Leonard James Humphreys, Robert Downie, Paul Watson | 2019-10-22 |
| 10427132 | Biorefining method | Robert Downie, Leonard James Humphreys, Thomas Maschmeyer | 2019-10-01 |
| 5034554 | Polysiloxane oils and process for their preparation | Peter Leslie Timms | 1991-07-23 |