Inventor
Ludwig Muhlhaus
Inventor
Iserlohn, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry27%
C01BNon-metallic elements18%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
C02FTreatment of water, waste water, sewage, or sludge9%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials9%
F23GCremation furnaces9%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application9%
PatentTitleYear
4,742,623'Process and equipment for the indirect drying of sludge, especially for the drying of wastewater sludge'19884,681,157'Crossflow heat exchanger'19874,591,335'Process for reheating and conveying a granular heat carrier'19864,576,924'Process for the desorption of spent solid absorbent'19864,071,612'Process for the incineration of contaminated salt-bearing solutions'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to UHDE GMBH FRIEDRICH (1)· patent assignee history
1978Based in Iserlohn-Hennen, DE· patent location history
1986–1988Patents assigned to UHDE GMBH (4)· patent assignee history
1986–1988Based in Iserlohn, DE· patent location history
1986Based in Nothweg, DE· patent location history
1987Based in Dortmund, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UHDE GMBH | 4 | 1986–1988 |
| UHDE GMBH FRIEDRICH | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Iserlohn, DE | 2 | 1986–1988 |
| Dortmund, DE | 1 | 1987 |
| Nothweg, DE | 1 | 1986 |
| Iserlohn-Hennen, DE | 1 | 1978 |