| 12210134 |
Environmental monitoring system |
David A. Drake, Glen A. Hill, Lawrence B Merchell |
2025-01-28 |
| 12111200 |
Phased array radar for fluid sensing |
David A. Drake, David B Rees, Lawrence B Merchell |
2024-10-08 |
| 11709222 |
Manhole cover roadway electromagnetic safety device |
David A. Drake |
2023-07-25 |
| 11686082 |
Detection and monitoring system for the management of combined sewer systems |
David A. Drake, David B Rees, Lawrence B Merchell, John D. Boyd |
2023-06-27 |
| 11346096 |
Detection and monitoring system for the management of combined sewer systems |
David A. Drake, David B Rees, Lawrence B Merchell, John D. Boyd |
2022-05-31 |
| 10901068 |
Manhole cover roadway radar safety device |
David A. Drake |
2021-01-26 |
| 10612228 |
Detection and monitoring system for the management of combined sewer systems |
David A. Drake, David B Rees, Lawrence B Merchell, John D. Boyd |
2020-04-07 |
| 9482568 |
Detecting a sediment condition in a conduit |
David A. Drake, Lawrence B Merchell |
2016-11-01 |
| 9297684 |
Estimating flow rates of a liquid in a conduit |
David A. Drake, Lawrence B Merchell, Justin H. Hobbs |
2016-03-29 |
| 8607654 |
Platform for suspended sensor stabilization |
Justin H. Hobbs, Daryl Norval, David A. Drake |
2013-12-17 |
| 7948215 |
Methods and apparatuses for power generation in enclosures |
David A. Drake |
2011-05-24 |
| 7944352 |
Remote sensing and communication system |
David A. Drake |
2011-05-17 |
| 7598858 |
Methods, apparatuses, and systems for monitoring environmental parameters within an enclosure |
David A. Drake |
2009-10-06 |
| 7589630 |
Remote sensing and communication system |
David A. Drake |
2009-09-15 |
| 7292143 |
Remote sensing and communication system |
David A. Drake |
2007-11-06 |
| 7072038 |
Particle ID with narrow angle detectors |
Hanno Ix |
2006-07-04 |
| 7057724 |
Particulate info to field units |
Donald C. Mead |
2006-06-06 |
| 6972424 |
High detection rate particle identifier |
Donald C. Mead, Hanno Ix |
2005-12-06 |
| 6774995 |
Identification of particles in fluid |
Hanno Ix |
2004-08-10 |
| 6628386 |
Particle detection beam |
Clay Davis, Donald C. Mead |
2003-09-30 |
| 6590652 |
Flow through light scattering device |
Craig R. Tisserat |
2003-07-08 |
| 6519033 |
Identification of particles in fluid |
Hanno Ix |
2003-02-11 |
| 4710025 |
Process for characterizing suspensions of small particles |
Philip J. Wyatt |
1987-12-01 |
| 4548500 |
Process and apparatus for identifying or characterizing small particles |
Philip J. Wyatt |
1985-10-22 |