Inventor
WELCH ROBERT M
US10 patents
⚠️ This page may combine multiple inventors who share the name “WELCH ROBERT M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WELCH ROBERT M
4 patentsUS5071115ADec 10, 1991
Exercise device for simulating walking and stair climbing
WELCH ROBERT M74 citations93
US8720609B2May 13, 2014
Drill bit with continuously sharp edge cutting elements
WELCH ROBERT M4 citations71
USD367675SMar 5, 1996
Educational model
WELCH ROBERT M13 citations71
US9540884B2Jan 10, 2017
Drill bit with continuously sharp edge cutting elements
WELCH ROBERT M0 citations51
BAKER HUGHES INC
4 patentsUS7810588B2Oct 12, 2010
Multi-layer encapsulation of diamond grit for use in earth-boring bits
BAKER HUGHES INC28 citations91
US8020641B2Sep 20, 2011
Drill bit with continuously sharp edge cutting elements
BAKER HUGHES INC8 citations83
US7836979B2Nov 23, 2010
Drill bits and tools for subterranean drilling
BAKER HUGHES INC6 citations61
US7779936B2Aug 24, 2010
Staggered compact row on same land
BAKER HUGHES INC4 citations59