Inventor

Friedrich H. Franke

Inventor

Grunstadt, DE

Overview

8→

Patents

1976–1994

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C10Lprimary

C10LFuels not otherwise provided for21%

C10MLubricating compositions14%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions14%

C21BManufacture of iron or steel14%

Y02PClimate change mitigation technologies in the production or processing of goods14%

C07CAcyclic or carbocyclic compounds7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%

C10FDrying or working-up of peat7%

PatentTitleYear

5,364,952'Vanadium(IV) oxide bis(dialkyldithiocarbamates), process for their preparation, and oil compositions containing them'1994 5,308,519'Tungsten hexaldialkyldithiocarbamates, process for their preparation and oil compositions containing them'1994 5,009,671'Process for producing a solid, finely divided fuel based on coal'1991 4,968,324'Process for producing a solid, finely divided fuel based on coal'1990 4,741,278'Solid fuel and a process for its combustion'1988 4,266,968'Process for injecting brown coal into a blast furnace'1981 3,980,447'Process for the manufacture of brown coal briquettes'1976 3,954,444'Process for the direct reduction of iron ores'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to RHEINISCHE BRAUNKOHLENW AG (3)· patent assignee history

1976Based in Aachen, DE· patent location history

1981Based in Cologne, DE· patent location history

1988Based in Elmenhorst-Fischbek, DE· patent location history

1990Patents assigned to BP BENZIN UND PETROLEUM AG (1)· patent assignee history

1990–1991Based in Schonstett, DE· patent location history

1994Patents assigned to FRANKE FRIEDRICH (2)· patent assignee history

1994Patents assigned to HIMMELREICH ROLF (2)· patent assignee history

1994Patents assigned to SPIESS WOLFRAM (2)· patent assignee history

1994Based in Grunstadt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RHEINISCHE BRAUNKOHLENW AG	3	1976–1981
FRANKE FRIEDRICHself	2	1994
HIMMELREICH ROLF	2	1994
SPIESS WOLFRAM	2	1994
BP BENZIN UND PETROLEUM AG	1	1990

Locations

Location	Patents	Span
Grunstadt, DE	2	1994
Schonstett, DE	2	1990–1991
Aachen, DE	2	1976
Elmenhorst-Fischbek, DE	1	1988
Cologne, DE	1	1981