Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8715557 | Dimensional control of concrete blocks | Paul Johnson, Jimmie L. Mugge, Ronald J. Scherer | 2014-05-06 |
| 8689806 | Illuminated nails | Donald Richard Swanson | 2014-04-08 |
| 8246892 | Methods of quality control in concrete block production | Jimmie L. Mugge, Paul Johnson | 2012-08-21 |
| 7862763 | Methods of quality control in concrete block production | Jimmie L. Mugge, Paul Johnson | 2011-01-04 |
| 7743574 | System of blocks for use in forming a free standing wall | Gene R. Karjala | 2010-06-29 |
| 7674420 | Dimensional control of concrete blocks | Paul Johnson, Jimmie L. Mugge, Ronald J. Scherer | 2010-03-09 |
| 7037047 | Retaining wall block system | Robert John Lundell | 2006-05-02 |
| 6953309 | Concrete block with batter indicators | Michael Lidbom | 2005-10-11 |