Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824643 | Apparatus for producing carbon black | Mark L. Gravley | 1989-04-25 |
| 4822588 | Process for producing carbon black | Mark L. Gravley | 1989-04-18 |
| 4765964 | Carbon black reactor having a reactor throat | Mark L. Gravley | 1988-08-23 |
| 4689210 | Separation of ash and char in the formation of carbon black from coal | — | 1987-08-25 |
| 4664901 | Process for producing carbon black | — | 1987-05-12 |
| 4588557 | Oil tube positioner for radial oil carbon black reaction | — | 1986-05-13 |
| 4568258 | Apparatus for particulating materials | — | 1986-02-04 |
| 4540560 | Carbon blacks | Mark L. Gravley | 1985-09-10 |
| 4526731 | Particulating materials | — | 1985-07-02 |