Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132918 | Method for control of a distillation process | — | 1992-07-21 |
| 4747912 | Cracking furnace control | William S. Stewart, Guy S. Pennington, Jr. | 1988-05-31 |
| 4731175 | Preheat control for a fractional distillation process | Terrence A. Davis, Bruce A. Jensen | 1988-03-15 |
| 4726893 | Catalytic crackins process control | William S. Stewart, Guy S. Pennington, Jr. | 1988-02-23 |
| 4717468 | Distillation process control for maximum recovery using minimum energy | — | 1988-01-05 |
| 4713774 | Alkylation reactor quality control | William B. Bard | 1987-12-15 |
| 4671908 | Extrusion control process and apparatus | J. S. Gwinn | 1987-06-09 |
| 4655277 | Process control for parallel heat exchangers | William S. Stewart, Guy S. Pennington, Jr. | 1987-04-07 |
| 4642766 | Method and means of control for multi-source feedstock distribution system including optimization of supplies | Robert D. Terhune, Cheryl C. Kania, Robert H. Kallenberger | 1987-02-10 |
| 4598669 | Control of a system for supplying heat | — | 1986-07-08 |
| 4586126 | Feed rate control | James D. Voelkers | 1986-04-29 |
| 4545971 | Control process for an ammonia manufacturing process | Terry E. Bland | 1985-10-08 |
| 4543637 | Generation of a set point for process control | Dexter E. Smith, William S. Steward | 1985-09-24 |
| 4530738 | Constraint control of a fractional distillation process | — | 1985-07-23 |
| 4485070 | Control apparatus for an ammonia manufacturing process | Terry E. Bland | 1984-11-27 |
| 4482969 | Control of an alkylation reactor | James Anthony Feldman | 1984-11-13 |
| 4473442 | Acid regenerator control | James Anthony Feldman | 1984-09-25 |
| 4437977 | Control of a catalytic cracking unit | — | 1984-03-20 |
| 4400784 | Control of a cracking furnace | Warren Huang, William S. Stewart | 1983-08-23 |
| 4392877 | Constraint control of a fractional distillation process | — | 1983-07-12 |
| 4386623 | Nonlinear control of liquid level | William S. Stewart | 1983-06-07 |
| 4381814 | Control of heat transfer from heat exchangers in parallel | — | 1983-05-03 |
| 4371944 | Ethylene process control | William S. Stewart, Dexter E. Smith | 1983-02-01 |
| 4360882 | Process control system | William S. Stewart | 1982-11-23 |
| 4318178 | Control of a cracking furnace | William S. Stewart, Warren Huang | 1982-03-02 |