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USPTO Patent Rankings Data through Dec 31, 2025
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Ralph Weber — 21 Patents

KOKortec: 8 patents #2 of 14Top 15%
CACovestro Deutschland Ag: 3 patents #190 of 964Top 20%
VOVoest-Alpine: 3 patents #48 of 348Top 15%
KAKorf-Stahl Ag: 3 patents #2 of 17Top 15%
BABayer Materialscience Ag: 1 patents #483 of 1,035Top 50%
CPCovestro Intellectual Property: 1 patents #95 of 267Top 40%
LGLanxess Deutschland Gmbh: 1 patents #212 of 576Top 40%
TLTechnological Resources Pty Limited: 1 patents #84 of 192Top 45%
KGKorf Engineering Gmbh: 1 patents #11 of 19Top 60%
Leichlingen, DE: #22 of 270 inventorsTop 9%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Ralph Weber has been granted 21 US patents while listed as an inventor at Kortec. The first was granted in 1982 and the most recent in October 2023. Ralph Weber ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Ralph Weber in Leichlingen, DE.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
11795260 Bulk material comprising solid diisocyanates and prepolymers containing urethane groups obtainable therefrom Michael Merkel, Anna-Marie Zorn, Rainer Bellinghausen, Pascal Scherpian 2023-10-24
10307727 Method for processing hydrogen chloride from isocyanate preparation Martin Ehrig, Johannes Leonhäuser, Dirk Weiβenberg 2019-06-04
10294198 Method for producing xylylene diisocyanates in the gaseous phase Reinhard Halpaap, Josef Sanders, Frank Richter, Elsa Karoline Schadlich, Armin Schymura +3 more 2019-05-21
9422162 Carbon nanotube agglomerate Heiko Hocke, Elmar Bramer-Weger 2016-08-23
8398949 Carbon nanotube powder, carbon nanotubes, and processes for their production Helmut Meyer, Heiko Hocke, Martin Schmid, Elmar Bramer-Weger, Matthias Voetz +4 more 2013-03-19
7425234 Iron oxide pigments Leslaw Mleczko, Ulrich Meisen, Georg Lamp 2008-09-16
6322745 Direct smelting vessel and direct smelting process David Leigh, Peter Damian Burke, Cecil Peter Bates 2001-11-27
5571475 Reducing and smelting furnace having filter layer 1996-11-05
5403378 Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace William Wells 1995-04-04
5364448 Process for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the process 1994-11-15
4949940 Charging arrangement for shaft furnaces, in particular blast furnaces 1990-08-21
4946498 Process for the production of steel from fine ore hot briquetted after fluidized bed reduction 1990-08-07
4881972 Process for feeding heat energy into a molten metal bath William Wells 1989-11-21
4852858 Charging material preheater for preheating charging material for a metallurgical smelting unit 1989-08-01
4736930 Closure apparatus for a tap hole William Wells 1988-04-12
4586897 Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation Herbert Rothe 1986-05-06
4448402 Apparatus for directly making liquid pig-iron from coarse iron ore Bernt Rollinger, Rolf Hauk, Michael J. Nagle, Jr., Bernhard Rinner 1984-05-15
4409023 Process for directly making liquid pig-iron from coarse iron ore Bernt Rollinger, Rolf Hauk, Michael Nagl, Bernhard Rinner 1983-10-11
4392637 Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions Bernt Rollinger, Michael Nagl, Bernhard Rinner 1983-07-12
4389043 Metallurgical melting and refining unit William Wells 1983-06-21
4317677 Process for producing liquid crude iron and reduction gas Emil Elsner, Walter Maschlanka, Bernt Rollinger, Gerhard Sanders 1982-03-02