Frank A. Chambers has been granted 10 US patents while listed as an inventor at Amoco . The first was granted in 1987 and the most recent in August 2001. Frank A. Chambers ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Frank A. Chambers in West Chicago, IL, US.
Patents per Year Patents granted per year, 1987 to 2001 Bar chart with a peak of 2 patents in 1994. peak 2 1987: 1 patents 1987 1994: 2 patents 1994 1995: 1 patents 1995 1996: 1 patents 1996 1997: 1 patents 1997 1999: 2 patents 1999 2000: 1 patents 2000 2001: 1 patents 2001
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6271954 Waveguide absorption modulator with integral optical isolator — 2001-08-07
6055043 Method and apparatus for using phase modulation to reduce coherence/polarization noise in reflectometers — 2000-04-25
5993074 High speed electro-optical signal translator R. Gilbert Kaufman , Melvin C. Schmidt , Michael G. Ressl , John G. Kwasegrock 1999-11-30
5872624 Method and apparatus for retroreflectively reducing coherence/polarization noise in reflectometers Gary D. Bridge 1999-02-16
5644668 High speed electro-optical signal translator R. Gilbert Kaufman , Melvin C. Schmidt , Michael G. Ressl , John G. Kwasegrock 1997-07-01
5522005 High power waveguide absorption modulator Anthony L. Moretti 1996-05-28
5422972 Techniques for illuminating internal surfaces of a high speed electro-optical signal translator R. Gilbert Kaufman , Melvin C. Schmidt , Michael G. Ressl , John G. Kwasegrock 1995-06-06
5375182 Techniques for planar alignment of high speed electro-optical signal translator components R. Gilbert Kaufman 1994-12-20
$50,036,000
5276756 High speed electro-optical signal translator R. Gilbert Kaufman , Melvin C. Schmidt , Michael G. Ressl , John G. Kwasegrock 1994-01-04
$44,275,000
4672169 Apparatus and method for heating materials with a laser heat source — 1987-06-09
$115,867,000