Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6999886 | Vehicle speed estimation using inductive vehicle detection systems | — | 2006-02-14 |
| 6988052 | Normalization of inductive vehicle detector outputs | Geoffrey Yerem | 2006-01-17 |
| 6917308 | Surface-mount traffic sensors | — | 2005-07-12 |
| 6911829 | Inductive signature measurement circuit | Michael J. Roberts, Geoffrey Yerem | 2005-06-28 |
| 6876949 | Normalization of inductive vehicle detector outputs | Geoffrey Yerem | 2005-04-05 |
| 6838886 | Method and apparatus for measuring inductance | Geoffrey W. Hilliard | 2005-01-04 |
| 6771064 | Inductive sensor apparatus and method for deploying | Lawrence P. Leibowitz | 2004-08-03 |
| 6639521 | Inductive sensor and method of use | Geoffrey W. Hilliard | 2003-10-28 |
| 6611210 | Automotive vehicle classification and identification by inductive signature | Geoffrey W. Hilliard | 2003-08-26 |
| 6590400 | Inductive signature measurement circuit | Michael J. Roberts, Geoffrey Yerem | 2003-07-08 |
| 6417784 | Automotive vehicle classification and identification by inductive signature | Geoffrey W. Hilliard | 2002-07-09 |
| 6380868 | Permeability-modulated carrier referencing | Geoffrey W. Hilliard | 2002-04-30 |
| 6342845 | Automotive vehicle classification and identification by inductive signature | Geoffrey W. Hilliard | 2002-01-29 |
| 6337602 | Method and apparatus for active isolation in inductive loop detectors | Geoffrey W. Hilliard | 2002-01-08 |