| 12264950 |
Method and apparatus for mass flow verification |
Junhua Ding |
2025-04-01 |
| 11513542 |
Method and apparatus for pulse gas delivery using an external pressure trigger |
Mark J. Quaratiello, Junhua Ding |
2022-11-29 |
| 11404290 |
Method and apparatus for pulse gas delivery |
Junhua Ding |
2022-08-02 |
| 10969799 |
System for and method of fast pulse gas delivery |
Junhua Ding, Tseng-Chung Lee |
2021-04-06 |
| 10725484 |
Method and apparatus for pulse gas delivery using an external pressure trigger |
Mark J. Quaratiello, Junhua Ding |
2020-07-28 |
| 10698426 |
Methods and apparatus for multiple channel mass flow and ratio control systems |
Junhua Ding, Wayne Cole |
2020-06-30 |
| 10649471 |
Method and apparatus for pulse gas delivery with isolation valves |
Junhua Ding, Gordon Hill |
2020-05-12 |
| 10514712 |
Method and apparatus for pressure-based flow measurement in non-critical flow conditions |
Junhua Ding |
2019-12-24 |
| 10353408 |
System for and method of fast pulse gas delivery |
Junhua Ding, Tseng-Chung Lee |
2019-07-16 |
| 10126760 |
System for and method of fast pulse gas delivery |
Junhua Ding, Tseng-Chung Lee |
2018-11-13 |
| 10031004 |
Methods and apparatus for wide range mass flow verification |
Junhua Ding, Wayne Cole |
2018-07-24 |
| 9471066 |
System for and method of providing pressure insensitive self verifying mass flow controller |
Junhua Ding |
2016-10-18 |
| 8997791 |
Multiple-channel flow ratio controller |
Junhua Ding, David D'Entremont |
2015-04-07 |
| 7706925 |
Integrated pressure and flow ratio control system |
Junhua Ding, Kaveh Zarkar, William R. Clark |
2010-04-27 |
| 7467027 |
Compensation for thermal siphoning in mass flow controllers |
Junhua Ding, Kaveh Zarkar |
2008-12-16 |
| 7296465 |
Vertical mount mass flow sensor |
Junhua Ding, Kaveh Zarkar |
2007-11-20 |
| 7000465 |
Attitude error self-correction for thermal sensors of mass flow meters and controllers |
Mark J. Quaratiello, Ronald H. Bouley |
2006-02-21 |
| 6955072 |
System and method for in-situ flow verification and calibration |
Kaveh Zarkar, Mark J. Quaratiello |
2005-10-18 |