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Bartlesville, OK, United States of America

Howard B Irvin

USPTO Granted Patents = 15

Average Co-Inventor Count = 1.3

ph-index = 6

Forward Citations = 170(Granted Patents)

Company Filing History:

15 out of 5,071

Phillips Petroleum Company

Years Active: 1976-1986

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4604216 - Drilling fluids (1986-08-05),

2. 4548982 - Drilling fluids (1985-10-22),

3. 4418191 - Solvent purification (1983-11-29),

4. 4408039 - Separation of polymer of conjugated diene from a solution polymerization (1983-10-04),

5. 4406750 - Solvent removal from polymer solution utilizing flashed vapor as a heat (1983-09-27),

6. 4388444 - Preparing blends of a synthetic rubber with a poly(arylene oxide) by (1983-06-14),

7. 4320091 - Apparatus for two stage catalytic hydrogenation of olefinically (1982-03-16),

8. 4278506 - Polymer solution purification (1981-07-14),

9. 4263228 - Two stage catalytic hydrogenation of olefinically unsaturated dinitriles (1981-04-21),

10. 4232137 - Cooling an alpha-methylstyrene polymerization mass (1980-11-04),

11. 4177250 - Method of removing acetylene and sulfur compounds from gases by (1979-12-04),

12. 4121029 - Polyolefin reactor system (1978-10-17),

13. 4086288 - Acetylenes removal from olefin streams for alkylation by dimethyl (1978-04-25),

14. 4060520 - Continuous reaction for preparation of arylene sulfide polymer (1977-11-29),

15. 4000044 - Fractionation of immiscible liquids of equal density (1976-12-28),

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