Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12043976 | Masonry block | Geoffrey S. Parrington, Dion T. DeMeyer | 2024-07-23 |
| 11053656 | Method of making molded concrete blocks having simulated brick or stone outer surfaces | Geoffrey S. Parrington, Dion T. DeMeyer | 2021-07-06 |
| 10895055 | Molded concrete blocks having simulated brick or stone outer surfaces | Geoffrey S. Parrington, Dion T. DeMeyer | 2021-01-19 |
| 9758943 | Molded concrete blocks having simulated brick or stone outer surfaces and method of making same | Geoffrey S. Parrington, Dion T. DeMeyer | 2017-09-12 |
| 8282869 | Method for making precast concrete meter pit | Geoffery S. Parrington, Eugene J. Pelchat, JR. | 2012-10-09 |
| 7506813 | Resonator use in the print field | David F. Christofferson, John C. Geres, William T. Graushar | 2009-03-24 |
| 7272466 | Electronic ID's for printed products | William T. Graushar, John C. Geres | 2007-09-18 |
| 6829521 | Printed products | William T. Graushar, John C. Geres | 2004-12-07 |
| 6675062 | Logs of printed products | William T. Graushar, John C. Geres | 2004-01-06 |
| 5672202 | Pigment compositions | John A. Stirling, Carol Jean Farnocchi | 1997-09-30 |
| 5482548 | Pigment compositions | John A. Stirling, Carol Jean Farnocchi | 1996-01-09 |