P

Inventor

DUGAN JOHN P

US6 patents
⚠️ This page may combine multiple inventors who share the name “DUGAN JOHN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SPECTRA PHYSICS LASERPLANE INC

3 patents
US5257279AOct 26, 1993

Adjustable focus technique and apparatus using a moveable weak lens

SPECTRA PHYSICS LASERPLANE INC35 citations90
US5225928AJul 6, 1993

Focus compensating lens for use in extreme temperatures

SPECTRA PHYSICS LASERPLANE INC40 citations90
US5335244AAug 2, 1994

Technique and apparatus using a moveable weak lens

SPECTRA PHYSICS LASERPLANE INC12 citations68

WATT WILLIAM JAMES

1 patent
US8444369B2May 21, 2013

System and method for unloading items

WATT WILLIAM JAMES95 citations93

AMAZON TECH INC

1 patent
US9517899B2Dec 13, 2016

System for unloading items

AMAZON TECH INC41 citations92

SPECTRA PHYSICS

1 patent
US4971440ANov 20, 1990

Projection of two orthogonal reference light planes

SPECTRA PHYSICS9 citations72