Frederic Berthault has been granted 5 US patents while listed as an inventor at Alcatel Espace . The first was granted in 1997 and the most recent in March 2015. Frederic Berthault ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Frederic Berthault in Paris, FR.
Patents per Year Patents granted per year, 1997 to 2015 Bar chart with a peak of 2 patents in 1997. peak 2 1997: 2 patents 1997 2000: 1 patents 2000 2004: 1 patents 2004 2015: 1 patents 2015
Issued Patents All Time
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Showing 1–5 of 5 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8988659 Optoelectronic device for observing and/or aiming at a scene, comprising a rangefinder, and related range-finding method Philippe Patry , Thibault Augey 2015-03-24
6738480 Method and device for cancelling stereophonic echo with frequency domain filtering François Capman 2004-05-18
$23,801,000
6038447 Method of handing off traffic in a low orbit satellite communication system serving terminals and communication system using a method of this kind Denis Rouffet , Michel Mazzella , Yannick Tanguy 2000-03-14
$6,292,000
5668556 Low-orbit satellite communications system for terminals Denis Rouffet , Michel Mazzella , Yannick Tanguy 1997-09-16
$3,131,000
5625867 Method of handing off traffic in a low orbit satellite communication system serving terminals and communication system using a method of this kind Denis Rouffet , Michel Mazzella , Yannick Tanguy 1997-04-29
$1,051,000