| D1006928 |
Golf tee |
— |
2023-12-05 |
| 11135488 |
Multi-purpose golf tee |
— |
2021-10-05 |
| 7169831 |
Pavement marking composition comprising ceramic fibers |
Randall H. Helland |
2007-01-30 |
| 6841223 |
Composite pavement markings |
Thomas P. Heblom |
2005-01-11 |
| 6561309 |
Gas flow generator and apparatus for using the same |
Robert J. Gustafson |
2003-05-13 |
| 6479132 |
Pavement marking articles having enhanced retroreflectivity under dry or wet conditions and method for making same |
Thomas P. Hedblom, Terry L. Bescup, Joseph M. McGrath |
2002-11-12 |
| 6431788 |
Wear resistant pavement marking |
Thomas P. Hedblom, Curtis W. Meverden, Gregory E. Gilligan, Thomas Krech |
2002-08-13 |
| 6365262 |
Pavement marking articles having enhanced retroreflectivity under dry or wet conditions and method for making same |
Thomas P. Hedblom, Terry L. Bescup, Joseph M. McGrath |
2002-04-02 |
| 6247818 |
Method for making retroreflective elements having enhanced retroreflectivity under dry and/or wet conditions |
Thomas P. Hedblom |
2001-06-19 |
| 6101808 |
Cryogenic solid hybrid rocket engine and method of propelling a rocket |
William H. Knuth, Darin R. Kohles, Christopher P. St. Clair, Daniel J. Gramer |
2000-08-15 |
| 6051297 |
Self-contrasting retroreflective pavement marking tapes |
Gary W. Maier |
2000-04-18 |
