Inventor
JOHNSON DONALD W
US17 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON DONALD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MICROCHEM CORP
3 patentsUS6391523B1May 21, 2002
Fast drying thick film negative photoresist
MICROCHEM CORP60 citations94
US7449280B2Nov 11, 2008
Photoimageable coating composition and composite article thereof
MICROCHEM CORP12 citations76
US6303260B1Oct 16, 2001
Dissolution rate modifiers for lift-off resists
MICROCHEM CORP7 citations67
NAT OILWELL LP
3 patentsUS7293607B2Nov 13, 2007
Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
NAT OILWELL LP30 citations89
US7546869B2Jun 16, 2009
Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
NAT OILWELL LP8 citations80
US8006751B2Aug 30, 2011
Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig
NAT OILWELL LP16 citations79