Dundee
United Kingdom
7
2022-03-03
The entities that hold a legal rights for patent applications filed by inventor INGLIS Peter Derek Walter:
Peter Derek Walter INGLIS from Dundee, GB has applied for patents for these inventions. The list has both pending applications and granted patents:
Downhole power generating apparatus
#2 | 2020-06-04Annular safety valve
#3 | 2018-09-06Downhole Tool with Multiple Pistons
#4 | 2018-07-05METAL TO METAL SINGLE BALL SEAT SYSTEM
#5 | 2013-11-21Elongated trunnion for high pressure ball valves
#6 | 2013-06-27Unequal load collet and method of use
#7 | 2012-10-18Ball valve safety plug
306406 ⎘