Robert M. Perchak

Person

Dayton, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Wide angle surface generator and target
- Patent number 7,920,337
- Issue date Apr 5, 2011
- Mirage Holography Ltd.
- Robert M. Perchak
- G02 - OPTICS
Information Patent Grant
Multi-axis bubble vial device
- Patent number 7,497,021
- Issue date Mar 3, 2009
- Trimble Navigation Limited
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Optical angle finder and coaxial alignment device
- Patent number 6,628,405
- Issue date Sep 30, 2003
- Mirage Development, Ltd.
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Penta assembly skew compensator
- Patent number 6,515,783
- Issue date Feb 4, 2003
- Mirage Development, Ltd.
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Laser receiver with out-of-plumb indication and compensation
- Patent number 6,292,258
- Issue date Sep 18, 2001
- Spectra Precision, Inc.
- Richard D'Alessandro
- G01 - MEASURING TESTING
Information Patent Grant
Bi-lateral shearing interferometer with beam convergence/divergence...
- Patent number 6,081,333
- Issue date Jun 27, 2000
- Mirage Development, Ltd.
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Beam centering system
- Patent number 6,054,717
- Issue date Apr 25, 2000
- Mirage Development Ltd.
- Robert M. Perchak
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Position leveling sensor for a laser transmitter
- Patent number 5,994,688
- Issue date Nov 30, 1999
- Spectra Precision, Inc.
- Jonathan Appleget Jackson
- G01 - MEASURING TESTING
Information Patent Grant
Bi-lateral shearing interferometer
- Patent number 5,923,426
- Issue date Jul 13, 1999
- Mirage Development, Ltd.
- Robert M. Perchak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Thin lightguide target for laser alignment
- Patent number 5,896,475
- Issue date Apr 20, 1999
- Mirage Development, Ltd.
- Robert M. Perchak
- G02 - OPTICS
Information Patent Grant
Laser leveling target with fresnel lens system
- Patent number 5,818,633
- Issue date Oct 6, 1998
- Mirage Development, Ltd.
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Target for laser leveling systems
- Patent number 5,760,932
- Issue date Jun 2, 1998
- Mirage Development Ltd.
- Robert M. Perchak
- G02 - OPTICS
Information Patent Grant
Target for laser leveling systems
- Patent number 5,710,647
- Issue date Jan 20, 1998
- Robert M. Perchak
- G02 - OPTICS
Information Patent Grant
Non-contact measurement of displacement and changes in dimension of...
- Patent number 5,448,362
- Issue date Sep 5, 1995
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Grant
Deactivatable electronic article surveillance tags, tag webs and me...
- Patent number 5,059,950
- Issue date Oct 22, 1991
- Monarch Marking Systems, Inc.
- Robert Perchak
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Wide angle surface generator & target
- Publication number 20080165433
- Publication date Jul 10, 2008
- Robert M. Perchak
- G02 - OPTICS
Information Patent Application
Multi-axis bubble vial device
- Publication number 20070169362
- Publication date Jul 26, 2007
- Robert M. Perchak
- G01 - MEASURING TESTING
Information Patent Application
Wide angle surface generator & target
- Publication number 20040051982
- Publication date Mar 18, 2004
- Robert M. Perchak
- G02 - OPTICS
Information Patent Application
Penta assembly skew compensator
- Publication number 20020030880
- Publication date Mar 14, 2002
- Mirage Development, Ltd.
- Robert M. Perchak
- G01 - MEASURING TESTING

Robert M. Perchak

Person

Patents Grantslast 30 patents

Wide angle surface generator and target

Multi-axis bubble vial device

Optical angle finder and coaxial alignment device

Penta assembly skew compensator

Laser receiver with out-of-plumb indication and compensation

Bi-lateral shearing interferometer with beam convergence/divergence...

Beam centering system

Position leveling sensor for a laser transmitter

Bi-lateral shearing interferometer

Thin lightguide target for laser alignment

Laser leveling target with fresnel lens system

Target for laser leveling systems

Target for laser leveling systems

Non-contact measurement of displacement and changes in dimension of...

Deactivatable electronic article surveillance tags, tag webs and me...

Patents Applicationslast 30 patents

Wide angle surface generator & target

Multi-axis bubble vial device

Wide angle surface generator & target

Penta assembly skew compensator