Inventor
John Kahsnitz
Inventor
Haltern, DE
Overview
Patents· 7 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 chemistry24%
C02FTreatment of water, waste water, sewage, or sludge18%
C07HSugars12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
B01DSeparation6%
B22DCasting of metals6%
C01BNon-metallic elements6%
C07CAcyclic or carbocyclic compounds6%
C22CAlloys6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
8,038,961'Apparatus and process for preparing silanes'20116,270,676'Process for removing ethers and/or polycyclic aromatic hydrocarbons from water containing them'20016,117,331'Processes for the purification of waters containing organic constituents'20005,681,476'Process for the purification of groundwater'19975,461,144'Process for the preparation of alkyl polyglycosides'19955,227,480'Process for the preparation of alkyl glycosides and alkyl oligoglycosides'19935,177,229'Process for the preparation of esters'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2000Patents assigned to HUELS CHEMISCHE WERKE AG (5)· patent assignee history
1993–2001Based in Haltern, DE· patent location history
2001Patents assigned to DEGUSSA (1)· patent assignee history
2011Patents assigned to EVONIK DEGUSSA GMBH (1)· patent assignee history
2011Based in Haltern am See, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUELS CHEMISCHE WERKE AG | 5 | 1993–2000 |
| DEGUSSA | 1 | 2001 |
| EVONIK DEGUSSA GMBH | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Haltern, DE | 6 | 1993–2001 |
| Haltern am See, DE | 1 | 2011 |