Chan; Kwong-Onn
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chan; Kwong-Onn.The latest application filed is for "electrically insulated tubing hanger system".
- Chan; Kwong-Onn - Calgary CA
- Chan; Kwong-Onn - Edmonton N/A CA
- - Edmonton CA
| Patent | Date |
|---|---|
| Electrically insulated tubing hanger system Grant 10,605,032 - Ayres , et al. | 2020-03-31 |
| Electrically Insulated Tubing Hanger System App 20180010409 - Ayres; Ana Karoline ; et al. | 2018-01-11 |
| Flowline and Injection Tee for Frac System App 20160208570 - Ayres; Ana ; et al. | 2016-07-21 |
| Method and apparatus for launching multiple balls in a well Grant 9,103,183 - He , et al. August 11, 2 | 2015-08-11 |
| Scalloped landing ring Grant 8,919,453 - He , et al. December 30, 2 | 2014-12-30 |
| Scalloped landing ring Grant 08919453 - | 2014-12-30 |
| Scalloped Landing Ring App 20130092397 - He; Henry ; et al. | 2013-04-18 |
| Method And Apparatus For Launching Multiple Balls In A Well App 20130032327 - He; Henry X. ; et al. | 2013-02-07 |
| Wellhead isolation sleeve assembly Grant 7,823,634 - Chan , et al. November 2, 2 | 2010-11-02 |
| Wellhead Isolation Sleeve Assembly App 20090090515 - Chan; Kwong Onn ; et al. | 2009-04-09 |
| System, method, and apparatus for degassing tool for coal bed methane gas wells App 20070062693 - Chan; Kwong-Onn ; et al. | 2007-03-22 |
| Wellhead production pumping tree with access port Grant 6,736,208 - Riddell , et al. May 18, 2 | 2004-05-18 |
| Wellhead production pumping tree with access port App 20030196792 - Riddell, Daniel J. ; et al. | 2003-10-23 |
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