Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281605 | Exhaust gas aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur | 2025-04-22 |
| 11982219 | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, Roy W. Detra, Mihai Chiruta | 2024-05-14 |
| 11761365 | Exhaust gas and reductant mixer for an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Mannannur | 2023-09-19 |
| 11753975 | Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters | Changsheng C. Su, A. Carl McDonald, Ramakrishna Gopal Dontha, Nathan A. Ottinger, Z. Gerald Liu +2 more | 2023-09-12 |
| 11585253 | Converging liquid reductant injector nozzle in selective catalytic reduction systems | Z. Gerald Liu, Achuth Munnannur | 2023-02-21 |
| 11542847 | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, Roy W. Detra, Mihai Chiruta | 2023-01-03 |
| 11519310 | Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters | Changsheng C. Su, A. Carl McDonald, Ramakrishna Gopal Dontha, Nathan A. Ottinger, Z. Gerald Liu +2 more | 2022-12-06 |
| 11136910 | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, Roy W. Detra, Mihai Chiruta | 2021-10-05 |
| 10792626 | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, David Dunnuck | 2020-10-06 |
| 10632430 | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system | Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, David Dunnuck | 2020-04-28 |
| 10082062 | Systems and methods for enhancing catalytic efficiency of SCR catalysts | Nathan A. Ottinger, Z. Gerald Liu, Yuanzhou Xi, Rebecca A. Veele, Changsheng C. Su | 2018-09-25 |
| 9938875 | Urea injection systems valves | Andrew Myer, Chetan Ponnathpur, John K. Heichelbech, George L. Muntean, Stephen M. Holl +5 more | 2018-04-10 |
| 9422850 | Urea injection systems valves | Andrew Myer, Chetan Ponnathpur, John K. Heichelbech, George L. Muntean, Stephen M. Holl +5 more | 2016-08-23 |