Inventor
Hans-Otto Henrich
Inventor
Heidenheim, DE
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D21Bprimary
D21BFibrous raw materials or their mechanical treatment42%
B01FMixing, e.g. dissolving, emulsifying or dispersing8%
B03DFlotation8%
B24DTools for grinding, buffing or sharpening8%
B27LRemoving bark or vestiges of branches8%
D21DTreatment of the materials before passing to the paper-making machine8%
D21FPaper-making machines8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
5,407,268'Kneader for the treatment of fibrous pulp suspensions'19954,840,317'Wood pulp grinder'19894,726,897'Flotation container or cell'19884,710,287'Fibrous suspension pressurized sorter'19874,456,182'Pulp grinder with liquid retention'19844,401,277'Apparatus for producing mechanical wood pulp'19834,351,486'Process and a grinding stone for preparing mechanical wood pulp'19824,257,563'Apparatus and process for producing wood pulp in a pressurized wood grinder'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1995Patents assigned to VOITH GMBH J M (8)· patent assignee history
1981–1995Based in Heidenheim, DE· patent location history
1989Based in Hiedenheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VOITH GMBH J M | 8 | 1981–1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Heidenheim, DE | 7 | 1981–1995 |
| Hiedenheim, DE | 1 | 1989 |