Inventor

SAWYER DONALD M

US4 patents

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

(unassigned)

2 patents

US6216802B1Apr 17, 2001

Gravity oriented directional drilling apparatus and method

107 citations92

US6273190B1Aug 14, 2001

Wellbore sidetrack plug

16 citations78

RIVAL DOWNHOLE TOOLS LC

1 patent

US11008809B2May 18, 2021

Bent housing drilling motor with counter-rotating lower end

RIVAL DOWNHOLE TOOLS LC2 citations71

SAWYER DONALD M

1 patent

US6978850B2Dec 27, 2005

Smart clutch

SAWYER DONALD M10 citations65