Houston, Texas
United States
13
2023-02-23
The entities that hold a legal rights for patent applications filed by inventor PARK Do Seo:
Do Seo PARK from Houston, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Anti-rotation fluid injection dart
#2 | 2021-05-06Downhole device including a fluid propulsion system
#3 | 2021-04-15CHECK VALVE
#4 | 2020-09-17Anti-rotation fluid injection dart
#5 | 2020-01-30Fluid injection valve
#6 | 2019-12-26Axial and rotational alignment system and method
#7 | 2019-03-28Flexible protector and method
#8 | 2018-12-20Pressurized seat check valve
#9 | 2016-12-08Cable retainer and method
#10 | 2014-11-13Chain service indicator
#11 | 2014-11-13Quick-release gripping insert assembly
#12 | 2014-03-20Modular coiled tubing unit
#13 | 2012-10-04Tubing reel assembly for coiled tubing systems
690796 ⎘