Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11124407 | Mobile distribution station having onboard fluid storage tank | Garrett Walther | 2021-09-21 |
| 6063336 | Method and apparatus for wood chip pasteurization | Garth L. Tomic | 2000-05-16 |
| 5066362 | Extended delignification in pressure diffusers | — | 1991-11-19 |
| 5021127 | Extended delignification in pressure diffusers | — | 1991-06-04 |
| 5021125 | Pistonless accumulator | Joseph R. Phillips, John Weston | 1991-06-04 |
| 5013460 | Centrifugal washer for paper pulp with means to feed pulp as a thin sheet | — | 1991-05-07 |
| 4927312 | Chip gates with air lock | Joseph R. Phillips, Richard O. Laakso, C. Bertil Stromberg | 1990-05-22 |
| 4902381 | Method of bleaching pulp with ozone-chlorine mixtures | — | 1990-02-20 |
| 4684442 | Oxygen reactor deaeration tank and system | Joseph Bentvelzen, Marvin F. Jordan | 1987-08-04 |
| 4310384 | Reducing chemical transfer between treatment stages | Louis L. Edwards, Jr., Keith T. Van Scotter | 1982-01-12 |
| 4303470 | Method and apparatus for mixing gases with a wood pulp slurry | Jozef M. Bentvelzen, Henry Bepple | 1981-12-01 |
| 4298426 | Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence | Louis O. Torregrossa, Jozef M. Bentvelzen, Gerald D. Crosby, Jr., Henry Bepple | 1981-11-03 |
| 4298427 | Method and apparatus for intimately mixing oxygen and pulp while using an alkali to extract bleaching by-products | Jozef M. Bentvelzen, Louis O. Torregrossa, Henry Bepple | 1981-11-03 |
| 4295925 | Treating pulp with oxygen | Jozef M. Bentvelzen, Henry Bepple, Louis O. Torregrossa, Howard R. Battan, Dennis H. Justice | 1981-10-20 |
| 4295926 | Method and apparatus for treating pulp with oxygen | Jozef M. Bentvelzen, Henry Bepple, Louis O. Torregrossa, Howard R. Battan, Dennis H. Justice | 1981-10-20 |
| 4295927 | Method and apparatus for treating pulp with oxygen and storing the treated pulp | Jozef M. Bentvelzen, Henry Bepple, Louis O. Torregrossa, Howard R. Battan, Dennis H. Justice | 1981-10-20 |
| 4288288 | Apparatus for mixing chemicals into pulp at a refiner inlet | John A. Fleck | 1981-09-08 |
| 4229252 | Additives for ozone bleaching | — | 1980-10-21 |
| 4216054 | Low-consistency ozone delignification | Jozef M. Bentvelzen, Steven L. Bogart, Maharaj K. Gupta, William T. McKean, Louis O. Torregrossa | 1980-08-05 |