Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902939 | Penetrometer sampler system for subsurface spectral analysis of contaminated media | John H. Ballard, Ernesto R. Cespedes | 1999-05-11 |
| 5635710 | Subsurface penetrometer radiaton sensor probe and system | Bobby Reed, Bryan A. Register, John H. Ballard, John C. Morgan | 1997-06-03 |
| 5411653 | Separated electrode system in electrolytically setting or hardening reactive cement pastes | Cameron L. Young, Fred E. Causey, Philip G. Malone, William N. Brabston | 1995-05-02 |