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

Horst Fischer — 40 Patents

UNUnknown: 6 patents #2,010 of 83,584Top 3%
MAMannesmann Rexroth Ag: 5 patents #17 of 201Top 9%
DADeutsche Aerospace Ag: 3 patents #5 of 117Top 5%
CSCarl Zeiss Stiftung: 2 patents #166 of 654Top 30%
DADaimler-Benz Aerospace Ag: 2 patents #13 of 147Top 9%
GGG. L. Rexroth Gmbh: 2 patents #5 of 21Top 25%
AGAstrium Gmbh: 2 patents #42 of 305Top 15%
AIAkzona Incorporated: 2 patents #67 of 274Top 25%
SKSew-Eurodrive Gmbh & Co. Kg: 2 patents #129 of 331Top 40%
Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
KAKm-Kabelmetal Aktiengesellschaft: 1 patents #4 of 11Top 40%
A&Alcatel Kabel Ag &: 1 patents #9 of 30Top 30%
MGMesserschmitt Bolkow Blohm Gmbh: 1 patents #178 of 531Top 35%
T&Th. Kieserling & Albrecht Gmbh &: 1 patents #7 of 19Top 40%
EGEads Astrium Gmbh: 1 patents #3 of 21Top 15%
ALAlcatel: 1 patents #1,083 of 2,861Top 40%
KAKabel- Und Metallwerke Gutehoffnungshutte Ag: 1 patents #19 of 73Top 30%
Herne, DE: #4 of 216 inventorsTop 2%
Overall (All Time): #78,996 of 4,157,543Top 2%
40 Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
4950137 Radial piston machine having pivoted control means engaging cam ring Gunter Fischer, Rainer Knoll 1990-08-21
4927332 Vane pump Karl Staub 1990-05-22
4856947 Cutting curved mold surfaces Werner Wichmann, Gernot Wilhelms, Guenter Wiltmann 1989-08-15
4813703 Fork lift truck 1989-03-21
4780069 Directlly actuated vane-type pump Jorg Dantlgraber, Josef Budel, Karl Staub, Albert Muller 1988-10-25
4634323 Apparatus for guiding workpieces Ralf Wagner, Fritz Heider 1987-01-06
4615592 Coupling for the drive of a mechanical stage Wolfgang Schob 1986-10-07
4502415 Floor covering for stables Udo Schwarzkopff 1985-03-05
4490025 Specimen holder for microscopes Klaus Weber, Siegfried Werner Gerber 1984-12-25
4436385 Specimen holder for inverted microscopes Friedrich K. Mollring 1984-03-13
RE31345 Floor covering sheet for stables Udo Schwartzkopff 1983-08-16
4386892 Hydrostatic meshing gear machine with arcuate tooth flanks Bodo Stich, Helmut Schulz 1983-06-07
4382585 Cooling plate for furnaces Hermann Bunemann, Bernhard Henneken, Bruno Kammerling 1983-05-10
4318306 Centering apparatus for toothed drives 1982-03-09
4257750 Radial piston pump Jorg Dantlgraber, Horst Krämer 1981-03-24