Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D783222 | Conveyor belt scraper blade base member | Paul B. Harrison, Rudolf Beer | 2017-04-04 |
| D783223 | Conveyor belt scraper blade | Paul B. Harrison, Rudolf Beer | 2017-04-04 |
| 9340366 | Bulk material conveyor belt scraper and method of forming the same | Paul B. Harrison, Rudolf Beer | 2016-05-17 |
| D748885 | Base portion of a conveyor belt scraper blade | Paul B. Harrison | 2016-02-02 |
| 9169081 | Bulk material conveyor belt scraper and method of forming the same | Paul B. Harrison | 2015-10-27 |
| D740514 | Conveyor belt scraper blade | Paul B. Harrison | 2015-10-06 |
| D739635 | Conveyor belt scraper blade base member | Paul B. Harrison | 2015-09-22 |
| 8782960 | Method of securing a cable to a roof | Malcolm Brent Nark, Bronson Rumsey | 2014-07-22 |
| 7308980 | Method for distributing a conveyor belt cleaner | Robert Todd Swinderman | 2007-12-18 |
| 4953689 | Conveyor belt cleaner | Harold M. Stetson, Robert Todd Swinderman | 1990-09-04 |