Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
FS

Fritz Schwertfeger — 21 Patents

CACabot: 8 patents #71 of 601Top 15%
Hoechst Gmbh: 3 patents #1,206 of 4,020Top 30%
WAWacker Chemie Ag: 3 patents #307 of 1,324Top 25%
Basf Se: 1 patents #8,065 of 13,826Top 60%
HAHoescht Aktiengesellschaft: 1 patents #26 of 159Top 20%
Würzburg, DE: #12 of 435 inventorsTop 3%
Overall (All Time): #211,049 of 4,157,543Top 6%
21 Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
7674476 Use of aerogels in agriculture Andreas Zimmermann, Gerhard Frisch 2010-03-09
7470725 Organically modified aerogels, processes for their preparation by surface modification of the aqueous gel, without prior solvent exchange, and subsequent drying, and their use Dierk Frank 2008-12-30
7468205 Multilayer composite materials with at least one aerogel-containing layer and at least one other layer, process for producing the same and their use Marc Schmidt, Dierk Frank 2008-12-23
7297718 Method of producing substantially spherical lyogels in water insoluble silylating agents Uwe Baumler 2007-11-20
7178366 Method for the production of an internally vitrified SiO2 crucible Jens Guenster, Sven Engler, Juergen Heinrich 2007-02-20
6946030 Method for the production of a silica glass crucible with crystalline regions from a porous silica glass green body Holger Szillat, Christoph Frey, Ulrich Lambert, Axel Frauenknecht 2005-09-20
6699808 High-solids SiO2 dispersions, process for producing them, and their use Johann Weis, Peter Ritter, Achim Molter, Wolfgang Schweren, Volker Frey +1 more 2004-03-02
6598358 Use of aerogels for deadening structure-borne and/or impact sounds Marc Schmidt, Dierk Frank 2003-07-29
6475561 Method of producing silicon tetrachloride-based and organically modified aerogels 2002-11-05
6365638 Process for preparation of hydrophilic or partially hydrophilic inorganic aerogels Andreas Zimmermann 2002-04-02
6316092 Aerogel-coated sheet Dierk Frank, Andreas Zimmermann 2001-11-13
6280744 Use of inorganic aerogels in pharmacy Andreas Zimmermann, Harald Krempel 2001-08-28
6210751 Process for preparing organically modified aerogels in which the salts formed are precipitated out 2001-04-03
6191173 Process for the production of organofunctionalized aerogels Andreas Zimmermann 2001-02-20
6159539 Process for preparing organically modified aerogels and use thereof Andreas Zimmermann 2000-12-12
6156386 Method for the preparation of organically modified aerogels 2000-12-05
6143400 Aerogel and adhesive-containing composite, process for its production and its use Andreas Zimmerman, Johann Wonner, Frank Scholl, Marc Schmidt 2000-11-07
6140377 Process for preparing organically modified aerogels using alcohols Andreas Zimmermann 2000-10-31
6129949 Process for preparing organically modified aerogels using alcohols, wherein the resultant salts are precipitated Andreas Zimmermann 2000-10-10
5888425 Process for the preparation of modified aerogels, and their use Andreas Zimmermann 1999-03-30
5587107 SiO.sub.2 aerogels containing carbon particles and their preparation Ulrich Schubert, Elisabeth Seyfried, Joachim Kuhn, Jochen Fricke, Manfred Mielke 1996-12-24