Michel A. Duguay has been granted 11 US patents while listed as an inventor at Université Laval . The first was granted in 1983 and the most recent in September 2010. Michel A. Duguay ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Michel A. Duguay in Fair Haven, NJ, US.
Patents per Year Patents granted per year, 1983 to 2010 Bar chart with a peak of 2 patents in 1983. peak 2 1983: 2 patents 1983 1987: 1 patents 1987 1988: 1 patents 1988 1991: 1 patents 1991 1997: 2 patents 1997 2001: 1 patents 2001 2006: 2 patents 2006 2010: 1 patents 2010 Issued Patents All Time
Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7800024 Lithic wireless warming table and portable heaters Philippe Faucher 2010-09-21
6999662 Segmented waveguide array grating filters Etienne Grondin 2006-02-14
6993224 Segmented waveguide array gratings (SWAG)-based archival optical memory — 2006-01-31
6201914 Tapered waveguide for optical dispersion compensation Dominique Brichard , Vincent Delisle , Uwe Langbein , Udo Trutschel 2001-03-13
5692076 Antiresonant waveguide apparatus for periodically selecting a series of at least one optical wavelength from an incoming light signal Vincent Delisle , Udo Trutschel 1997-11-25
5671304 Two-dimensional optoelectronic tune-switch — 1997-09-23
4989933 Guided light diffuser Melanie L. Light 1991-02-05
4763019 Apparatus comprising harmonic generation means Joseph S. Weiner 1988-08-09
4715672 Optical waveguide utilizing an antiresonant layered structure Thomas L. Koch , Yasuo Kokubun , Loren N. Pfeiffer 1987-12-29
$189,208,000
4395769 Tunable semiconductor laser Theodoor C. Damen 1983-07-26
$18,090,000
4378599 Semiconductor laser having broadband laser gain Theodoor C. Damen , Julian Stone 1983-03-29
$35,082,000
