Johnson; Calvin K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson; Calvin K..The latest application filed is for "foundry binder and process".
- Johnson; Calvin K. - Lockport IL
- Johnson; Calvin K. - Palos Heights IL
| Patent | Date |
|---|---|
| Foundry binder and process Grant 6,509,392 - Jhaveri , et al. January 21, 2 | 2003-01-21 |
| Binders for cores and molds Grant 6,299,677 - Johnson , et al. October 9, 2 | 2001-10-09 |
| Water soluble and storage stable resole-melamine resin Grant 5,952,440 - Walisser , et al. September 14, 1 | 1999-09-14 |
| Bisphenol-containing resin coating articles and methods of using same Grant 5,916,933 - Johnson , et al. June 29, 1 | 1999-06-29 |
| Bisphenol-containing resin coating articles and methods of using same Grant 5,639,806 - Johnson , et al. June 17, 1 | 1997-06-17 |
| Method for easy removal of sand cores from castings Grant 5,126,089 - Johnson , et al. June 30, 1 | 1992-06-30 |
| Foundry shell core and mold composition Grant 4,713,294 - Armbruster , et al. December 15, 1 | 1987-12-15 |
| Particles covered with a cured infusible thermoset film and process for their production Grant 4,439,489 - Johnson , et al. March 27, 1 | 1984-03-27 |
| Foundry Core Compositions Grant 3,755,229 - Johnson , et al. August 28, 1 | 1973-08-28 |
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