Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919898 | Particulate solids cracking apparatus | Richard C. Norton | 1990-04-24 |
| 4820494 | Solids feeding device and system | Herman N. Woebcke | 1989-04-11 |
| 4814067 | Particulate solids cracking apparatus and process | Richard C. Norton | 1989-03-21 |
| 4663019 | Olefin production from heavy hydrocarbon feed | Axel Johnson, Joseph L. Ross, Dennis A. Duncan | 1987-05-05 |
| 4585544 | Hydrocarbon pretreatment process for catalytic cracking | Axel Johnson, Joseph L. Ross, Dennis A. Duncan, Edwin J. Bassler | 1986-04-29 |
| 4556541 | Low residence time solid-gas separation device and system | Herman N. Woebcke | 1985-12-03 |
| 4552645 | Process for cracking heavy hydrocarbon to produce olefins and liquid hydrocarbon fuels | Axel Johnson, Joseph L. Ross | 1985-11-12 |
| 4544480 | Low residence time solid-gas separation process | Herman N. Woebcke | 1985-10-01 |
| 4437979 | Solids quench boiler and process | Herman N. Woebcke, Arju H. Bhojwani | 1984-03-20 |
| 4433984 | Low residence time solid-gas separation device and system | Herman N. Woebcke | 1984-02-28 |
| 4426359 | Solids quench boiler | Herman N. Woebcke, Arju H. Bhojwani | 1984-01-17 |
| 4390502 | Solids feeding device and system | Herman N. Woebcke | 1983-06-28 |
| 4370303 | Thermal regenerative cracking (TRC) apparatus | Herman N. Woebcke, Arju H. Bhojwani, Axel Johnson | 1983-01-25 |
| 4356151 | Solids quench boiler | Herman N. Woebcke, Arju H. Bhojwani | 1982-10-26 |
| 4352728 | Solids feeding device and system | Herman N. Woebcke | 1982-10-05 |
| 4351275 | Solids quench boiler and process | Arju H. Bhojwani, Herman N. Woebcke | 1982-09-28 |
| 4348364 | Thermal regenerative cracking apparatus and separation system therefor | Herman N. Woebcke | 1982-09-07 |
| 4338187 | Solids feeding device and system | Herman N. Woebcke | 1982-07-06 |
| 4318800 | Thermal regenerative cracking (TRC) process | Herman N. Woebcke, Arju H. Bhojwani, Axel Johnson | 1982-03-09 |
| 4300998 | Pre-heat vaporization system | — | 1981-11-17 |
| 4288235 | Low residence time solid-gas separation device and system | Herman N. Woebcke | 1981-09-08 |
| 4264432 | Pre-heat vaporization system | — | 1981-04-28 |