Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Frederic Leising — 25 Patents

CHChryso: 8 patents #1 of 43Top 3%
RCRhone-Poulenc Chimie: 7 patents #45 of 660Top 7%
RCRhone-Poulenc Specialities Chimiques: 4 patents #28 of 169Top 20%
ITInstitut National Polytechnique De Toulouse: 2 patents #8 of 190Top 5%
IAInstitut National De La Recherche Agronomqiue: 2 patents #67 of 760Top 9%
RCRhodia Chimie: 2 patents #147 of 584Top 30%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
FTFlamel Technologies: 1 patents #32 of 39Top 85%
RHRhodia: 1 patents #99 of 236Top 45%
Senlis, FR: #2 of 116 inventorsTop 2%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Frederic Leising has been granted 25 US patents while listed as an inventor at Chryso. The first was granted in 1985 and the most recent in December 2025. Frederic Leising ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Frederic Leising in Senlis, FR.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12503395 Fluidizing compounds for hydraulic compositions Antoine COLAS, Vincent Froidevaux 2025-12-23
10822272 Copolymers having gem-bisphosphonate groupings Kamel Chougrani 2020-11-03
10533066 Block copolymers that can be used as plasticisers Lucia FERRARI 2020-01-14
10081572 Copolymers having gem-bisphosphonate groupings Kamel Chougrani 2018-09-25
10071952 Alpha/alpha-prime-alkoxylated glycerol linear carbonic esters Zephirin Mouloungui 2018-09-11
9950988 Method for the synthesis of alpha/alpha-prime-alcoxylated glycerol linear carbonic esters Zephirin Mouloungui 2018-04-24
9371424 Copolymers having gem-acetophone groups Kamel Chougrani 2016-06-21
9181127 Agents for inerting clays in hydraulic compositions 2015-11-10
9012589 Plasticizers for aqueous suspensions of mineral particles and hydraulic binder pastes Philippe Maitrasse, Bruno Pellerin, Loïc Lemiegre, Nicolas Noiret, Nathanael Olivi 2015-04-21
7247688 Method for synthesis of block polymers by controlled free radical polymerization Mathias Destarac, Yves Gnanou, Daniel Taton, Alex Dureault 2007-07-24 $196,000
6890980 Synthesis of block polymers obtained by controlled free radical polymerization Mathias Destarac, Alex Dureault, Daniel Taton, Yves Gnanou, Ramiro Guerrero-Santos 2005-05-10 $1,025,000
6653432 Condensation polymerization method for isocyanates Frédéric Dallemer, Jean-Marie Bernard, Denis Revelant 2003-11-25 $130,000
6376721 Process for alkoxylation in the presence of rare earth triflimides Christian Priou, Paul-Joel Derian 2002-04-23 $85,000
5783718 Process for the preparation of polyorganosiloxanes by hydrolysis of organohalosilanes Loic Doguet, Patricia Fompeyrine, Etienne Foucher 1998-07-21
5292798 Cyclopentadienyl and/or cyclopentadienylene and/or dicyclopentadienylene substituted polyorganosiloxanes crosslinkable into elastomeric state Jean-Marc Frances 1994-03-08 $751,000
5194489 Organopolysiloxane composition containing a cyclopentenyl radical and crosslinkable to give an elastomer Jean-Marc Frances 1993-03-16 $480,000
5156774 Thiophene-related compounds active in nonlinear optics, materials and devices containing them Remi Meyrueix, Gerard Mignani 1992-10-20
5118724 Silane and organopolysiloxane containing a cyclopentenyl radical and obtainable by a michael reaction Jean-Marc Frances 1992-06-02 $6,391,000
5108636 Magnetizable composite particles based on crosslinked organopolysiloxane, process for preparation thereof and their application in biology Ghislaine Torres 1992-04-28 $10,278,000
5034145 Process for the preparation of magnetizable microspheres based on polysiloxane and their biological application Bernard Chauvel, Ghislaine Torres 1991-07-23 $3,973,000
4985166 Magnetizable composite particles based on cross-linked organopolysiloxane, process for preparation thereof and their application in biology Ghislaine Torres 1991-01-15 $7,485,000
4857585 Stable amphoteric aqueous dispersions of synthetic polymers 1989-08-15 $1,581,000
4791161 Cationic latices of copolymers based on conjugated dienes 1988-12-13 $6,684,000
4528322 Aqueous cationic dispersions of synthetic polymers 1985-07-09 $2,781,000
4525519 Stable amphoteric latices of copolymers based on conjugated dienes 1985-06-25 $2,020,000