Inventor

KEEFE JOHN

US5 patents

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

INKTREE INC

2 patents

US7723600B2May 25, 2010

Display device

INKTREE INC4 citations54

US7723599B2May 25, 2010

Learning device

INKTREE INC2 citations50

GSI GROUP CORP

1 patent

US8379204B1Feb 19, 2013

System and method for automatic laser beam alignment

GSI GROUP CORP21 citations91

KEEFE JOHN

1 patent

US4445277AMay 1, 1984

Universal programmable lock installation device

KEEFE JOHN60 citations90

POWERTROL INC

1 patent

US5138184AAug 11, 1992

Solid state static power transfer mechanism

POWERTROL INC52 citations86