Inventor
STACHOWIAK JR JOHN
US3 patents
⚠️ This page may combine multiple inventors who share the name “STACHOWIAK JR JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD TECH HOLDINGS LLC
2 patentsUS10385663B2Aug 20, 2019
Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filter
WEATHERFORD TECH HOLDINGS LLC7 citations79
US11255171B2Feb 22, 2022
Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plunger
WEATHERFORD TECH HOLDINGS LLC0 citations57