Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690786 | Process for the treatment of pulp with oxygen and steam using ejectors | John Frederick Cirucci, Jeffrey A. Knopf, Jr., William P. Schmidt | 1997-11-25 |
| 5500085 | Method for producing fully oxidized white liquor | Varin Ayala, John Frederick Cirucci | 1996-03-19 |
| 5472568 | Method for controlling the viscosity of Kraft black liquor | Walter T. Mullen | 1995-12-05 |
| 5397434 | Method for distributing cellulosic pulp through a reactor at a constant upward velocity | Danilo S. Costa, Pedro M. Pita | 1995-03-14 |
| 5382322 | Selective white liquor oxidation | Ronald C. Naddeo, Varin Ayala, John Frederick Cirucci, Virgil G. Fox, Jr. | 1995-01-17 |
| 5372679 | Reactor system for treating cellulosic pulp at a constant upward flow velocity | Danilo S. Costa, Pedro M. Pita | 1994-12-13 |
| 5368938 | Oxidation resistant carbon and method for making same | Robert A. Holzl, Benjamin H. Tilley, Robert E. Benander, Paul N. Dyer | 1994-11-29 |
| 5338401 | Oxygen detackification in secondary fiber recovery | Ronald C. Naddeo, Konstantinos Hristofas | 1994-08-16 |
| 5332471 | Dye stripping by oxygen in secondary fiber recovery | Ronald C. Naddeo, Konstantinos Hristofas | 1994-07-26 |
| 5330838 | Coated carbonaceous articles and method for making same | Paul N. Dyer, Robert Edward Stevens | 1994-07-19 |
| 5324390 | Dye stripping by oxygen and peroxide in secondary fiber recovery | Ronald C. Naddeo, Konstantinos Hristofas | 1994-06-28 |
| 5304397 | Oxidation resistant carbon and method for making same | Robert A. Holzl, Benjamin H. Tilley, Robert E. Benander, Paul N. Dyer | 1994-04-19 |
| 5286565 | Oxidation resistant carbon and method for making same | Robert A. Holzl, Paul N. Dyer, Howard Paul Withers, Jr. | 1994-02-15 |
| 5260096 | Structral articles | Robert A. Holzl, Yvonne R. DeKay, Richard E. Tressler, Paul N. Dyer | 1993-11-09 |
| 5213661 | Oxygen alkali detackification in secondary fiber recovery | Ronald C. Naddeo, Konstantinos Hristofas | 1993-05-25 |
| 5211809 | Dye removal in oxygen color stripping of secondary fibers | Ronald C. Naddeo, Konstantinos Hristofas | 1993-05-18 |
| 4435249 | Process for the oxygen delignification of pulp mill rejects | Larry D. Markham, Andrew Martin, Edward F. Elton, Scott A. Wallick | 1984-03-06 |
| 4431480 | Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction | Larry D. Markham | 1984-02-14 |
| 4416727 | Process for recovering fiber from wet-strength resin coated paper | Edward F. Elton | 1983-11-22 |
| 4384920 | Method and apparatus for oxygen delignification | Larry D. Markham, Edward F. Elton | 1983-05-24 |