Inventor

KALMAN KEVIN

CA2 patents

⚠️ This page may combine multiple inventors who share the name “KALMAN KEVIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FIRST CHOICE DRILLING

1 patent

US9670737B2Jun 6, 2017

Mud motor with integrated reamer

FIRST CHOICE DRILLING0 citations34

EVOLUTION ENGINEERING INC

1 patent

US9810030B2Nov 7, 2017

Mud motor with integrated abrasion-resistant structure

EVOLUTION ENGINEERING INC0 citations33