Paderborn
Germany
4
2023-06-08
The entities that hold a legal rights for patent applications filed by inventor ENGEL Waldemar:
Waldemar ENGEL from Paderborn, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
PERFORATING GUN TUBE AND PERFORATING GUN
#2 | 2021-06-24Tube product, hollow carrier of perforating gun and method of manufacturing the tube product
#3 | 2018-06-28Outer tube for a perforating gun
#4 | 2017-10-26Outer tube for a perforating gun
2020686 ⎘