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USPTO Patent Rankings Data through Dec 31, 2025
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Herbert Durr — 8 Patents

UNUnknown: 6 patents #2,010 of 83,584Top 3%
DGDraiswerke Gmbh: 3 patents #5 of 17Top 30%
MEMaschinenfabrik Gustav Eirich: 2 patents #2 of 13Top 20%
MKMaschinenfabrik Gustav Eirich Gmbh & Co. Kg: 1 patents #14 of 29Top 50%
Viernheim, DE: #12 of 133 inventorsTop 10%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Herbert Durr has been granted 8 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in March 2005. Herbert Durr ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Herbert Durr in Viernheim, DE.

Patents per Year

Patents granted per year, 1980 to 2005Bar chart with a peak of 3 patents in 1991.peak 31980: 1 patents19801983: 1 patents19831985: 1 patents19851991: 3 patents19911997: 1 patents19972005: 1 patents2005

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6860313 Method and device for the preparation of foundry sand Uwe Greissing, Dieter Adelmann, Paul Eirich, Winfried Diem 2005-03-01
5694413 Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods Paul Eirich 1997-12-02
5016361 Method of extracting liquid from wet material — 1991-05-21
4998678 Agitator ball mill — 1991-03-12
4997357 Apparatus for treatment of power station residues Hubert Eirich, Paul Eirich, Walter Eirich 1991-03-05
4514833 Dispersing machine with container holding device — 1985-04-30
4390285 Method and apparatus for mixing solids with liquids, in particular for gluing wood chips Werner Christen, Helmut Muller 1983-06-28
4190371 Apparatus for discontinuous mixing of at least two materials Helmut Muller 1980-02-26

Frequent Collaborators

Paul Eirich3 shared
Helmut Muller2 shared
Dieter Adelmann1 shared
Uwe Greissing1 shared
Hubert Eirich1 shared
Winfried Diem1 shared

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