Inventor
TIBBITS GORDON A
US2 patents
Patents
2 patentsUS6655481B2Dec 2, 2003
Methods for fabricating drill bits, including assembling a bit crown and a bit body material and integrally securing the bit crown and bit body material to one another
BAKER HUGHES INC181 citations96
US6454030B1Sep 24, 2002
Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same
BAKER HUGHES INC180 citations96