| Classification | Number | Url | PMD | Priority | Assignee | Assignee Loc | Inventor(s) | Inventor Loc(s) | Filing Date | Issued Date |
| classification-0 | 6,692,578 | Hydrolysis of biomass material | 6,692,578 | No | Battelle Memorial Institute | Richland, WA | Schmidt; Andrew J.:Orth; Rick J.:Franz; James A.:Alnajjar; Mikhail | Richland, WA:Kennewick, WA:Kennewick, WA:Richland, WA | February 23, 2001 | February 17, 2004 |
| classification-0 | 6,423,145 | Dilute acid/metal salt hydrolysis of lignocellulosics | 6,423,145 | No | Midwest Research Institute | Kansas City, MO | Nguyen; Quang A.:Tucker; Melvin P. | Golden, CO:Lakewood, CO | August 9, 2000 | July 23, 2002 |
| classification-0 | 6,228,177 | Aqueous fractionation of biomass based on novel carbohydrate hydrolysis kinetics | 6,228,177 | Yes
| Midwest Research Institute | Kansas City, MO | Torget; Robert W. | Littleton, CO | April 14, 1999 | May 8, 2001 |
| classification-0 | 5,730,837 | Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars | 5,730,837 | No | Midwest Research Institute | Kansas City, MO | Black; Stuart K.:Hames; Bonnie R.:Myers; Michele D. | Denver, CO:Westminster, CO:Dacono, CO | December 2, 1994 | March 24, 1998 |
| classification-0 | 5,705,369 | Prehydrolysis of lignocellulose | 5,705,369 | Yes
| Midwest Research Institute | Kansas City, MO | Torget; Robert W.:Kadam; Kiran L.:Hsu; Teh-An:Philippidis; George P.:Wyman; Charles E. | Littleton, CO:Golden, CO:Golden, CO:Highlands Ranch, CO:Lakewood, CO | May 18, 1995 | January 6, 1998 |
| classification-0 | 5,424,417 | Prehydrolysis of lignocellulose | 5,424,417 | No | Midwest Research Institute | Kansas City, MO | Torget; Robert W.:Kadam; Kiran L.:Hsu; Teh-An:Philippidis; George P.:Wyman; Charles E. | Littleton, CO:Golden, CO:Golden, CO:Highlands Ranch, CO:Lakewood, CO | September 24, 1993 | June 13, 1995 |
| classification-0 | 4,615,742 | Progressing batch hydrolysis process | 4,615,742 | No | The United States of America as represented by the Department of Energy | Washington, DC | Wright; John D. | Denver, CO | January 10, 1985 | October 7, 1986 |