Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500135 | Method for effecting gas-liquid contact | David T. R. Ellenor, John N. Harbinson | 1996-03-19 |
| 5500130 | Method for effecting gas-liquid contact | David T. R. Ellenor, John N. Harbinson | 1996-03-19 |
| 5413765 | Method and apparatus for effecting gas-liquid contact | David T. R. Ellenor, John N. Harbinson | 1995-05-09 |
| 5407646 | Dual impeller method and apparatus for effecting chemical conversion | Nim Y. Lee | 1995-04-18 |
| 5403567 | Dual impeller method and apparatus for effecting chemical conversion | Nim Y. Lee | 1995-04-04 |
| 5366698 | Apparatus for effecting gas liquid contact | David T. R. Ellenor, John N. Harbinson | 1994-11-22 |
| 5360325 | Gear pump with reduced fluid-borne noise | John W. Henry, IV, William F. Flickinger, Joseph F. Dolinar, Jr., Francisco A. Rodriguez, Rocco J. Gabriele, Jr. | 1994-11-01 |
| 5352421 | Method and apparatus for effecting gas-liquid contact | David T. R. Ellenor, John N. Harbinson | 1994-10-04 |
| 5326433 | Multi-level sulfide content white liquor production and utilization in cellulose pulping | Rolf Ryham, Jian E. Jiang, Kaj Henricson | 1994-07-05 |
| 5265150 | Automatically configuring wireless PBX system | David J. Helmkamp | 1993-11-23 |
| 5243641 | Extended range cordless telephone system | James G. Evans, Gregory Panagopoulos, Steve E. Witta | 1993-09-07 |
| 5174973 | Method and apparatus for effecting gas-liquid contact | David T. R. Ellenor, John N. Harbinson | 1992-12-29 |
| 4919914 | Removal of hydrogen sulphide from gaseous streams | Robert Barton, Cyril H. Knight, deceased | 1990-04-24 |
| 4872205 | Radio communication system having autonomously selected transmission frequencies | — | 1989-10-03 |
| 4850036 | Radio communication system using synchronous frequency hopping transmissions | — | 1989-07-18 |
| 4686723 | Semi-fluidized bed | — | 1987-08-18 |
| 4668353 | Method and apparatus for acid mist reduction | John J. Davis | 1987-05-26 |
| 4584082 | Method and apparatus for acid mist reduction | — | 1986-04-22 |
| 4561075 | Method and apparatus for selecting inverse power weighting prior to vertically stacking acquired seismic data for suppressing noise | Jerry W. Ehlers | 1985-12-24 |
| 4520233 | Telephone line security apparatus | — | 1985-05-28 |