Cheng; Paul J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Paul J..The latest application filed is for "method for producing carbide products".
- Cheng; Paul J. - Bartlesville OK
| Patent | Date |
|---|---|
| Method for producing carbide products Grant 5,165,916 - Cheng , et al. November 24, 1 | 1992-11-24 |
| Pitch conversion Grant 4,704,333 - Elkins , et al. November 3, 1 | 1987-11-03 |
| Method for producing carbon black Grant 4,490,346 - Cheng December 25, 1 | 1984-12-25 |
| Carbon black manufacture Grant 4,446,108 - Cheng May 1, 1 | 1984-05-01 |
| Apparatus for producing carbon black Grant 4,439,400 - Cheng , et al. March 27, 1 | 1984-03-27 |
| Auto-preseparation of carbon black Grant 4,396,590 - Cheng August 2, 1 | 1983-08-02 |
| Process and apparatus for making carbon black Grant 4,383,973 - Cheng May 17, 1 | 1983-05-17 |
| Carbon black manufacture Grant 4,339,422 - Cheng July 13, 1 | 1982-07-13 |
| Method for producing carbon black Grant 4,328,199 - Cheng , et al. May 4, 1 | 1982-05-04 |
| Process for making carbon black Grant 4,327,069 - Cheng April 27, 1 | 1982-04-27 |
| Method for vortex flow carbon black production Grant 4,321,248 - Cheng March 23, 1 | 1982-03-23 |
| Process for producing carbon black Grant 4,315,901 - Cheng , et al. February 16, 1 | 1982-02-16 |
| Apparatus and method for producing carbon black Grant 4,302,423 - Cheng , et al. November 24, 1 | 1981-11-24 |
| Carbon black production Grant 4,299,797 - Cheng November 10, 1 | 1981-11-10 |
| Carbon black process and reactor Grant 4,294,814 - Cheng October 13, 1 | 1981-10-13 |
| Carbon black production from solid carbonaceous feedstock Grant 4,279,881 - Cheng July 21, 1 | 1981-07-21 |
| Apparatus and method for producing carbon black Grant 4,247,530 - Cheng , et al. January 27, 1 | 1981-01-27 |
| Method of producing pelleted carbon black Grant 4,228,143 - Cheng , et al. October 14, 1 | 1980-10-14 |
| Filtering apparatus Grant 4,058,379 - Cheng November 15, 1 | 1977-11-15 |
| Process to produce carbon black Grant 4,046,864 - Cheng September 6, 1 | 1977-09-06 |
| Combustors and methods of operating same Grant 4,007,001 - Schirmer , et al. February 8, 1 | 1977-02-08 |
| Carbon black reactor and process Grant 3,984,528 - Cheng , et al. October 5, 1 | 1976-10-05 |
| Multistage cyclonic separator Grant 3,925,045 - Cheng December 9, 1 | 1975-12-09 |
| Production of carbon black Grant 3,915,653 - Cheng October 28, 1 | 1975-10-28 |
| Carbon black apparatus Grant 3,877,876 - Cheng April 15, 1 | 1975-04-15 |
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