Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790363 | Radial motorcycle tires | Peter Ingley, Gerald A. Griffiths | 1988-12-13 |
| 4787453 | Permeability stabilization in subterranean formations containing particulate matter | Gregory S. Hewgill, Leonard J. Kalfayan | 1988-11-29 |
| 4776378 | Pneumatic tire and wheelrim for a motorcycle | Gerald A. Griffiths, Peter Ingley | 1988-10-11 |
| 4775489 | Self-breaking foamed oil in water emulsion for stimulation of wells blocked by paraffinic deposits | Edward J. O'Donnell | 1988-10-04 |
| 4739833 | Method of acidizing high-temperature subterranean formations | David J. Watanabe | 1988-04-26 |
| 4737296 | Foaming acid-containing fluids | — | 1988-04-12 |
| 4708207 | Scale removal treatment | Leonard J. Kalfayan, Gregory S. Hewgill | 1987-11-24 |
| 4646835 | Acidizing method | Leonard J. Kalfayan, Gregory S. Hewgill | 1987-03-03 |
| 4614236 | Self-breaking foamed oil-in-water emulsion for stimulation of wells blocked by paraffinic deposits | Edward J. O'Donnell | 1986-09-30 |
| 4580633 | Increasing the flow of fluids through a permeable formation | Leonard J. Kalfayan | 1986-04-08 |
| 4572296 | Steam injection method | — | 1986-02-25 |
| 4549609 | Treating fines-containing earthen formations | Robert K. Knight, Donald C. Young, Leonard J. Kalfayan | 1985-10-29 |
| 4498538 | Method for maintaining the permeability of fines-containing formations | Leonard J. Kalfayan | 1985-02-12 |
| 4479543 | Method for deeper penetrating acidizing of siliceous formations | Leonard J. Kalfayan | 1984-10-30 |
| 4475595 | Method of inhibiting silica dissolution during injection of steam into a reservoir | David J. Watanabe | 1984-10-09 |