Patents per Year
Top Inventors at Ideal Security Hardward All Time
Showing 1–10 of 10 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Cardell E. Miller | 5 |
| 2 | Russell W. Waldo | 4 |
| 3 | George L. Engstrom | 3 |
| 3 | Leo F. Wildgen | 3 |
| #5 | Louis D. Huot | 2 |
| #6 | Walter Arneberg | 1 |
| #6 | Cardel E. Miller | 1 |
| #6 | Gene A. Tracy | 1 |
| #6 | Harvey F. Berg | 1 |
| #6 | John Thorson | 1 |
Most Valuable Patents
| Patent | Est. Value | Year |
|---|---|---|
| Looped rod safety stop | $215K | 1984 |
| Method and apparatus for closing a door | $175K | 1987 |
| Locking apparatus for use with a panel slideable in a plane | $167K | 1986 |
| Segmented door opener | $149K | 1986 |
| Reversible adjustable torsion door closer | $144K | 1985 |