Inventor

EBSTEIN STEVEN

US4 patents

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

(unassigned)

1 patent

US5468971ANov 21, 1995

Verification device for currency containing an embedded security thread

114 citations96

NORTH EAST RESEARCH ASSOCIATES

1 patent

US5091801AFeb 25, 1992

Method and apparatus for adjusting the focal length of a optical system

NORTH EAST RESEARCH ASSOCIATES243 citations93

LEXITEK INC

1 patent

US5734502AMar 31, 1998

Achromatic diffractive optic

LEXITEK INC29 citations88

HARVARD COLLEGE

1 patent

US7715003B2May 11, 2010

Metalized semiconductor substrates for raman spectroscopy

HARVARD COLLEGE4 citations61