Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834469 | Utility line support member | Bruce Blumentritt | 2004-12-28 |
| 6223454 | Method of drying moist organic material | Donald W. Eickhoff | 2001-05-01 |
| 6126147 | Fence post apparatus | Gerhard Ray Hylland, Lawrence Lester Lange | 2000-10-03 |
| 6032384 | Method of drying moist organic material | Donald W. Eickhoff | 2000-03-07 |
| 5697600 | Fence post apparatus | Gerhard Ray Hylland, Lawrence Lester Lange | 1997-12-16 |
| 5605017 | Pultruded utility line support structure and method | William J. O'Brien | 1997-02-25 |
| 5492583 | Apparatus and method for in-line coating of pultrusion profiles | John Fingerson | 1996-02-20 |
| 5105563 | Apparatus for harvesting and drying crops | Donald W. Eickhoff | 1992-04-21 |
| 4944520 | Arrow shaft end adaptor apparatus and balance pin apparatus and method | Bruce A. Nelson, Dennis L. Carlson, Robert D. Eickhoff | 1990-07-31 |
| 4939618 | Lightning protected electric fence controller system and method | Andrew McKean, Robert D. Eickhoff | 1990-07-03 |
| 4874180 | Arrow shaft end adaptor apparatus and balance pin apparatus and method | Dennis L. Carlson, Bruce A. Nelson, Robert D. Eickhoff | 1989-10-17 |
| 4836504 | Rail-type fence using electricity | Robert D. Eickhoff | 1989-06-06 |
| 4522009 | Lock rod system for flooring grating and method for assembling same | — | 1985-06-11 |