Inventor
Hubert Coenen
Inventor
Essen, DE
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation22%
C02FTreatment of water, waste water, sewage, or sludge11%
C10GCracking hydrocarbon oils8%
C07DHeterocyclic compounds5%
C10MLubricating compositions5%
E21BEarth or rock drilling5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A23FCoffee3%
A23JProtein compositions for foodstuffs3%
PatentTitleYear
5,500,118'Biogas reactor for the anaerobic treatment of waste water'19965,338,575'Process for the quasi-continuous decaffeination of raw coffee'19945,190,672'Method for thermal disposal of sewage sludge'19935,182,406'Process and apparatus for recovering vegetable fats and oils from oil-containing natural substances'19935,154,830'Process of removing phosphorus and suspended matter from waste water'19924,898,990'Process for the extraction of vanillin'19904,828,702'Process for separating a solid substance from a liquid mixture of substances'19894,812,233'Apparatus for separating a solid substance from a liquid mixture of substances'19894,797,198'Process for the working up of salvage oil'19894,652,686'Process for producing hydrocarbons from biological sludge'19874,642,401'Process for the production of liquid hydrocarbons'19874,581,166'Method for isolating and purifying antibiotics'19864,560,513'Process for the recovery of lecithin'19854,532,992'Method for recovering petroleum'19854,522,707'Method for processing used oil'19854,485,003'Supercritical extraction and simultaneous catalytic hydrogenation of coal'19844,446,921'Method for underground gasification of solid fuels'19844,400,398'Method for obtaining aromatics and dyestuffs from bell peppers'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1990Patents assigned to KRUPP GMBH (12)· patent assignee history
1983–1994Based in Essen, DE· patent location history
1989Patents assigned to KRUPP KOPPERS GMBH (1)· patent assignee history
1992–1996Patents assigned to PASSAVANT WERKE (3)· patent assignee history
1993Patents assigned to DORR OLIVER DEUTSCHLAND (1)· patent assignee history
1993–1996Based in Aarbergen, DE· patent location history
1994Patents assigned to KOHIENSAEURE WERKE RUD BUSE GM (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KRUPP GMBH | 12 | 1983–1990 |
| PASSAVANT WERKE | 3 | 1992–1996 |
| DORR OLIVER DEUTSCHLAND | 1 | 1993 |
| KOHIENSAEURE WERKE RUD BUSE GM | 1 | 1994 |
| KRUPP KOPPERS GMBH | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Essen, DE | 16 | 1983–1994 |
| Aarbergen, DE | 2 | 1993–1996 |