Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12407109 | Underground monopole antenna shell | — | 2025-09-02 |
| 11940468 | Modular AMI/AMR in-ground meter box | — | 2024-03-26 |
| 9170127 | AMR/AMI pit lid antenna bracket | Howard Johnson | 2015-10-27 |
| 8978202 | Leg cap and caster mounting hardware | — | 2015-03-17 |
| 8215058 | Drip emitter with seed packet | — | 2012-07-10 |
| 7619878 | Meter cover for automated meter reading | — | 2009-11-17 |
| 7429933 | Bracket system and method for use with remote-reading water meters | Michael Timothy Brennan | 2008-09-30 |
| 7197866 | Control approach for use with dual mode oxygen sensor | Richard E. Soltis, Alex D. Colvin, Jessy W. Grizzle | 2007-04-03 |
| 6840036 | Control of oxygen storage in a catalytic converter | Giovanni Fiengo, Jessy W. Grizzle | 2005-01-11 |
| 6564769 | Method and system for operating a direct injection spark internal combustion engine having variable compression ratio modes | Ilya Kolmanovsky, Jing Sun | 2003-05-20 |
| 6553949 | Engine knock prevention system and method | Ilya Kolmanovsky, Julia Helen Buckland, Jing Sun | 2003-04-29 |
| 6389352 | Torque control apparatus for lean-burn engine | Jing Sun, Ilya Kolmanovsky | 2002-05-14 |
| 6360713 | Mode transition control scheme for internal combustion engines using unequal fueling | Ilya Kolmanovsky, Jing Sun | 2002-03-26 |
| 6321157 | Hybrid modeling and control of disc engines | Jing Sun, Ilya Kolmanovsky | 2001-11-20 |
| 6079204 | Torque control for direct injected engines using a supplemental torque apparatus | Jing Sun, Ilya Kolmanovsky | 2000-06-27 |
| 5950603 | Vapor recovery control system for direct injection spark ignition engines | Narayanan Sivashankar, Jing Sun | 1999-09-14 |
| 5654501 | Engine controller with air meter compensation | Jessy W. Grizzle | 1997-08-05 |
| 5515828 | Method and apparatus for air-fuel ratio and torque control for an internal combustion engine | Jessy W. Grizzle | 1996-05-14 |
| 5452576 | Air/fuel control with on-board emission measurement | Douglas R. Hamburg, Richard E. Soltis, Eleftherios M. Logothetis, Jacobus Hendrik Visser | 1995-09-26 |
| 5383333 | Method for biasing a hego sensor in a feedback control system | Eleftherios M. Logothetis, Douglas R. Hamburg, Lajos Rimai | 1995-01-24 |
| 5379590 | Air/fuel control system with hego current pumping | Douglas R. Hamburg, Eleftherios M. Logothetis, Lajos Rimai | 1995-01-10 |
| 5377654 | System using time resolved air/fuel sensor to equalize cylinder to cylinder air/fuel ratios with variable valve control | Julian A. LoRusso, Peter Szpak, Jessy W. Grizzle | 1995-01-03 |
| 5329764 | Air/fuel feedback control system | Douglas R. Hamburg, Eleftherios M. Logothetis | 1994-07-19 |
| 5313791 | Method for detecting catalyst malfunctions | Douglas R. Hamburg | 1994-05-24 |
| 5291673 | Oxygen sensor system with signal correction | Douglas R. Hamburg, Wayne J. Johnson, Louis J. Sherry | 1994-03-08 |