Inventor
SULT DONALD B
US4 patents
⚠️ This page may combine multiple inventors who share the name “SULT DONALD B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMVEST SYSTEMS INC
3 patentsUS6612655B2Sep 2, 2003
Mining system and method featuring a bread loaf shaped borehole
AMVEST SYSTEMS INC37 citations86
US6409276B1Jun 25, 2002
Water-jet assisted drum-type mining system
AMVEST SYSTEMS INC7 citations70
US6293628B1Sep 25, 2001
Hydraulic scroll auger mining system and method of using the same
AMVEST SYSTEMS INC5 citations59