Wong; Tak-Yiu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wong; Tak-Yiu.The latest application filed is for "hydrant valve with internal shut-off valve".
- Wong; Tak-Yiu - Long Beach CA
- Wong; Tak-Yiu - Cerritos CA
- Wong; Tak-Yiu - Duarte CA
| Patent | Date |
|---|---|
| Hydrant valve with internal shut-off valve Grant 11,415,235 - Wong August 16, 2 | 2022-08-16 |
| Hydrant Valve With Internal Shut-off Valve App 20210088150 - Wong; Tak-Yiu | 2021-03-25 |
| Hydrant valve with internal shut-off valve Grant 10,865,898 - Wong December 15, 2 | 2020-12-15 |
| Hydrant Valve With Internal Shut-off Valve App 20190136993 - Wong; Tak-Yiu | 2019-05-09 |
| Hydrant valve with internal shut-off valve Grant 10,203,040 - Wong Feb | 2019-02-12 |
| Hydrant Valve With Internal Shut-off Valve App 20180073648 - Wong; Tak-Yiu | 2018-03-15 |
| Locking mechanism for unisex ball valve coupling Grant 9,851,017 - Wong December 26, 2 | 2017-12-26 |
| Locking Mechanism For Unisex Ball Valve Coupling App 20170102093 - Wong; Tak-Yiu | 2017-04-13 |
| Locking mechanism for unisex ball valve coupling Grant 9,371,949 - Wong June 21, 2 | 2016-06-21 |
| Locking mechanism for unisex ball valve coupling Grant 9,341,294 - Wong May 17, 2 | 2016-05-17 |
| Locking Mechanism For Unisex Ball Valve Coupling App 20150097131 - Wong; Tak-Yiu | 2015-04-09 |
| Locking Mechanism For Unisex Ball Valve Coupling App 20150021504 - Wong; Tak-Yiu | 2015-01-22 |
| Locking mechanism for unisex ball valve coupling Grant 8,857,790 - Wong October 14, 2 | 2014-10-14 |
| Locking mechanism for unisex ball valve coupling Grant 8,814,137 - Wong August 26, 2 | 2014-08-26 |
| Locking Mechanism For Unisex Ball Valve Coupling App 20130193361 - Wong; Tak-Yiu | 2013-08-01 |
| Locking Mechanism For Unisex Ball Valve Coupling App 20120007007 - Wong; Tak-Yiu | 2012-01-12 |
| Aviation fueling hydrant coupler with internal actuating collar lock Grant 8,006,713 - Wong August 30, 2 | 2011-08-30 |
| Hydrant valve pilot with detachable actuator Grant 7,762,274 - Wong July 27, 2 | 2010-07-27 |
| Aviation Fueling Hydrant Coupler With Internal Actuating Collar Lock App 20100065132 - WONG; TAK-YIU | 2010-03-18 |
| Fluid contaminant detection device Grant 7,574,899 - Minott , et al. August 18, 2 | 2009-08-18 |
| Fluid Contaminant Detection Device App 20080174442 - Minott; Bruce Ross ; et al. | 2008-07-24 |
| Hydrant Valve Pilot With Detachable Actuator App 20070186977 - Wong; Tak-Yiu | 2007-08-16 |
| Inwardly opening mechanical vent system Grant 6,708,723 - Wong , et al. March 23, 2 | 2004-03-23 |
| Inwardly opening mechanical vent system App 20020157714 - Wong, Tak-Yiu ; et al. | 2002-10-31 |
| Self-contained connectors for standard tubes Grant 4,699,403 - Wong October 13, 1 | 1987-10-13 |
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