Inventor
Johann H. Schroeder
Inventor
Dortmund, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation27%
C07CAcyclic or carbocyclic compounds27%
F02CGas-turbine plants18%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
5,891,410'Process for the purification of an oxidation off gas'19995,858,808'Process and auxiliary device for fabricating semiconductor devices'19995,614,159'Process for the purification of an oxidation off gas with energy recovery'19975,338,882'Process for the production of DMT-intermediate product of specific purity and pure terephthalic acid'19945,286,896'Process for the production of DMT-intermediate product of specific purity'19944,707,274'Multistage arrangement for countercurrent separation and methods of operating same'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to AMBERGER KAOLINWERKE GMBH (1)· patent assignee history
1987Patents assigned to DYNAMIT NOBEL AG (1)· patent assignee history
1987–1999Based in Dortmund, DE· patent location history
1994–1999Patents assigned to HUELS CHEMISCHE WERKE AG (4)· patent assignee history
1999Patents assigned to ITT IND GMBH DEUTSCHE (1)· patent assignee history
1999Based in Simonswald, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUELS CHEMISCHE WERKE AG | 4 | 1994–1999 |
| AMBERGER KAOLINWERKE GMBH | 1 | 1987 |
| DYNAMIT NOBEL AG | 1 | 1987 |
| ITT IND GMBH DEUTSCHE | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dortmund, DE | 5 | 1987–1999 |
| Simonswald, DE | 1 | 1999 |