John Wold has a total of 1 patent(s) in the database.
* Some patents in this database have one or more inventors, not all of whom may be from Wyoming.
Patent Number: 5911959 View patent at USPTO Title: METHOD FOR PURIFICATION AND PRODUCTION OF SALINE MINERALS FROM TRONA Assignee: Environmental Projects, Inc. Issue Date: June 15, 1999 Inventor(s): Wayne C. Hazen, Denver, CO
Rudolph Pruszko, Green River, WY
Roland Schmidt, Lakewood, CO
John S. Wold, Casper, WY