Robert M. Perchak has been granted 16 US patents while listed as an inventor at Mirage Development . The first was granted in 1983 and the most recent in April 2011. Robert M. Perchak ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Robert M. Perchak in Dayton, OH, US.
Patents per Year Patents granted per year, 1983 to 2011 Bar chart with a peak of 3 patents in 1998. peak 3 1983: 1 patents 1983 1991: 1 patents 1991 1995: 1 patents 1995 1998: 3 patents 1998 1999: 3 patents 1999 2000: 2 patents 2000 2001: 1 patents 2001 2003: 2 patents 2003 2009: 1 patents 2009 2011: 1 patents 2011
Issued Patents All Time
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Showing 1–16 of 16 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7920337
Wide angle surface generator and target
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2011-04-05
7497021
Multi-axis bubble vial device
Robin McCarty
2009-03-03
$9,024,000
6628405
Optical angle finder and coaxial alignment device
—
2003-09-30
6515783
Penta assembly skew compensator
—
2003-02-04
6292258
Laser receiver with out-of-plumb indication and compensation
Richard D'Alessandro , Jonathan A Jackson , Edward E. Hart
2001-09-18
6081333
Bi-lateral shearing interferometer with beam convergence/divergence indication
—
2000-06-27
6054717
Beam centering system
—
2000-04-25
5994688
Position leveling sensor for a laser transmitter
Jonathan A Jackson , Ayman Hajmousa , John P. Dugan
1999-11-30
5923426
Bi-lateral shearing interferometer
—
1999-07-13
5896475
Thin lightguide target for laser alignment
—
1999-04-20
5818633
Laser leveling target with fresnel lens system
—
1998-10-06
5760932
Target for laser leveling systems
—
1998-06-02
5710647
Target for laser leveling systems
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1998-01-20
5448362
Non-contact measurement of displacement and changes in dimension of elongated objects such as filaments
—
1995-09-05
5059950
Deactivatable electronic article surveillance tags, tag webs and method of making tag webs
—
1991-10-22
$12,862,000
4402185
Thermoelectric (peltier effect) hot/cold socket for packaged I.C. microprobing
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1983-09-06
$6,806,000