Top Inventors at Construction Specialties All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Thomas A. Shreiner | 18 |
| 2 | Gary F. Bartlett | 10 |
| 3 | Robert W. Olsen | 10 |
| #4 | Roger W. Barr | 7 |
| #5 | Howard J. Williams | 5 |
| #6 | James G. Fenstermacher | 4 |
| #7 | John Leavitt Gard | 4 |
| #8 | Nancy Jane Perkins | 4 |
| #9 | Paul Moulton | 3 |
| #10 | William Vincent | 3 |
| #11 | David M. Lynn-Jones | 2 |
| #12 | Keijo Juhani Nurmentaus | 2 |
| #13 | Robert Kreitz | 2 |
| #14 | Wendy Duckham | 2 |
| #15 | William L. Bussler | 2 |
| #16 | Brian Mincemoyer | 1 |
| #17 | James R. Olson | 1 |
| #18 | Kenneth H. Betts | 1 |
| #19 | Lee Allen PEEKSTOK | 1 |
| #20 | Nathan Morris | 1 |
| #21 | R. Gordon Stewart | 1 |
| #22 | Richard C. Wallace | 1 |
| #23 | Thomas F. Donnelly | 1 |
| #24 | Alexandra A. Porumbescu | 1 |
| #25 | Jack Geortner | 1 |
| #26 | Todd Norman Bartlett | 1 |