Gary E. Sommargren — 34 Patents at Zygo

Gary E. Sommargren has been granted 34 US patents while listed as an inventor at Zygo. The first was granted in 1982 and the most recent in June 2005. Gary E. Sommargren ranks #100,737 of 4,157,543 US inventors in our database (top 2.4%). Patent records list Gary E. Sommargren in Livermore, CA, US.

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6909510	Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses	Eugene W. Campbell	2005-06-21
6876456	Absolute calibration of optical flats	—	2005-04-05
6704112	Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses	Eugene W. Campbell	2004-03-09
6177993	Inspection of lithographic mask blanks for defects	—	2001-01-23
6014264	Embedded fiducials in optical surfaces	—	2000-01-11
5969848	Micromachined electrostatic vertical actuator	Abraham P. Lee, Charles F. McConaghy, Peter Krulevitch	1999-10-19
5933236	Phase shifting interferometer	—	1999-08-03
5586133	Apparatus for increasing the frequency difference and stability of orthogonally polarized beams from a Zeeman split laser	—	1996-12-17
5548403	Phase shifting diffraction interferometer	—	1996-08-20
5218424	Flying height and topography measuring interferometer	—	1993-06-08	$296,000
5133599	High accuracy linear displacement interferometer with probe	—	1992-07-28	$280,000
5028137	Angular displacement measuring interferometer	Earl William Ebert	1991-07-02	$334,000
5022061	An image focusing means by using an opaque object to diffract x-rays	H. Joseph Weaver	1991-06-04
4963022	Method and apparatus for generating a straight reference line	—	1990-10-16	$214,000
4950078	High accuracy differential plane mirror interferometer	—	1990-08-21	$282,000
4881815	Linear and angular displacement measuring interferometer	—	1989-11-21	$115,000
4859066	Linear and angular displacement measuring interferometer	—	1989-08-22	$212,000
4807997	Angular displacement measuring interferometer	—	1989-02-28	$267,000
4802765	Differential plane mirror having beamsplitter/beam folder assembly	Peter S. Young	1989-02-07	$270,000
4802764	Differential plane mirror interferometer having beamsplitter/beam folder assembly	Peter S. Young	1989-02-07
4787747	Straightness of travel interferometer	Peter S. Young	1988-11-29	$245,000
4752133	Differential plane mirror interferometer	—	1988-06-21	$274,000
4746216	Angle measuring interferometer	—	1988-05-24	$315,000
4733967	Apparatus for the measurement of the refractive index of a gas	—	1988-03-29	$287,000
4717250	Angle measuring interferometer	—	1988-01-05	$263,000

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Gary E. Sommargren — 34 Patents

Issued Patents All Time

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