Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D770880 | Cylinder lock plug | — | 2016-11-08 |
| 5837128 | Method for grading cylindrical catalyst particles in a bed to reduce pressure drop | George A. Huff, Jr., Frederick T. Clark | 1998-11-17 |
| 5347475 | Method for transferring spectral information among spectrometers | Jay C. Knepper | 1994-09-13 |
| 5312543 | Resid hydrotreating using solvent extraction and deep vacuum reduction | William I. Beaton, Bernard Y. C. So, Jeffrey John Kolstad | 1994-05-17 |
| 5258117 | Means for and methods of removing heavy bottoms from an effluent of a high temperature flash drum | Jeffrey John Kolstad, William I. Beaton | 1993-11-02 |
| 5242578 | Means for and methods of deasphalting low sulfur and hydrotreated resids | Jeffrey John Kolstad, William I. Beaton | 1993-09-07 |
| 5228978 | Means for and methods of low sulfur and hydrotreated resids as input feedstreams | William I. Beaton, Jeffrey John Kolstad | 1993-07-20 |
| 5223715 | Process for spectrophotometric analysis | — | 1993-06-29 |
| 5206701 | Apparatus for near-infrared spectrophotometric analysis | Ronald L. Cutshall, Ernest H. Baughman | 1993-04-27 |
| 5186904 | Laboratory simulator of reactor for a petroleum refinery | David Lyzinski, Robert D. Buttke, William M. Hall | 1993-02-16 |
| 5124025 | Process for deasphalting resid, recovering oils, removing fines from decanted oil and apparatus therefor | Jeffrey John Kolstad, William I. Beaton | 1992-06-23 |
| 5124026 | Three-stage process for deasphalting resid, removing fines from decanted oil and apparatus therefor | William I. Beaton, Jeffrey John Kolstad | 1992-06-23 |
| 5124027 | Multi-stage process for deasphalting resid, removing catalyst fines from decanted oil and apparatus therefor | William I. Beaton, Jeffrey John Kolstad, Brian S. Kennedy, Robert D. Hughes | 1992-06-23 |
| 5059303 | Oil stabilization | Albert L. Hensley, Jr., John M. Forgac, David F. Tatterson | 1991-10-22 |
| 5030846 | Zener diode detector circuit | — | 1991-07-09 |
| 5027530 | Drying apparatus | Frederick E. Vollmer | 1991-07-02 |
| 5013427 | Resid hydrotreating with resins | James F. Mosby, Lawrence B. Peck, William I. Beaton | 1991-05-07 |
| 4994175 | Syncrude dedusting extraction | Jay T. Hargreaves | 1991-02-19 |
| 4940529 | Catalytic cracking with deasphalted oil | William I. Beaton, Lawrence B. Peck, James F. Mosby | 1990-07-10 |
| 4858732 | Brake shoe | — | 1989-08-22 |
| 4842735 | Oil skimming apparatus | Calvin L. Hollis | 1989-06-27 |
| 4670104 | Polar solvent dedusting | — | 1987-06-02 |
| 4569424 | Brake shoe construction | — | 1986-02-11 |
| 4544477 | Polar solvent extraction and dedusting process | — | 1985-10-01 |
| 4441347 | Lock assembly with interchangeable noses for safe deposit boxes | — | 1984-04-10 |