Issued Patents 2011
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D631982 | Molded surface of a concrete product | Jay J. Johnson | 2011-02-01 |
| D631984 | Molded surfaces of a concrete product | Jay J. Johnson | 2011-02-01 |
| D631983 | Molded surface of a concrete product | Jay J. Johnson | 2011-02-01 |
| 7862763 | Methods of quality control in concrete block production | Paul Randal Tufts, Paul Johnson | 2011-01-04 |