Inventor

Siegfried Pohl

Inventor

Bochum, DE

Overview

22→

Patents

1976–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 22 as inventor

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

C10Jprimary

C10JProduction of producer gas, water-gas, synthesis gas from solid carbonaceous material, or mixtures containing these gases24%

B22DCasting of metals11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

Y02PClimate change mitigation technologies in the production or processing of goods9%

C21BManufacture of iron or steel7%

C10BDestructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials4%

H04MTelephonic communication4%

H04QSelecting4%

Y10TTechnical subjects covered by former us classification4%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%

PatentTitleYear

6,266,989'Method and machine for straightening sections'2001 5,429,283'Immersion nozzle formed of separate members'1995 5,303,905'Refractory ceramic stopper, apparatus for support thereof, and assembly thereof'1994 4,923,225'Assembly for connecting a metal member to a ceramic refractory member'1990 4,860,344'Circuit arrangement for telecommunications switching systems, particularly telephone switching systems, etc.'1989 4,802,205'Circuit arrangement for telecommunications switching systems, particularly for telephone switching systems comprising information-processing sequential logic systems and traffic measuring devices'1989 4,708,196'Shaft cooler for the dry quenching of coke'1987 4,634,685'Refractory article suitable for casting molten metal'1987 4,508,324'Fastening means for a closure plate on a sliding shutter outlet in a vessel which contains molten metal'1985 4,372,754'Ignition system for coal gasifier'1983 4,188,915'Water-cooled, high-temperature gasifier'1980 4,159,447'System for detecting faults in the wall of a high-temperature pressure vessel'1979 4,157,244'Gas-cooling method and apparatus'1979 4,102,674'Method for hardening iron ore pellets'1978 4,098,324'Water-cooled, high-temperature gasifier and method for its operation'1978 4,073,628'Control system for apparatus to gasify fine-grain fuels in a reactor'1978 4,049,394'Control system for a coal gasification plant'1977 4,049,570'Method and apparatus for removing vapors and aerosols from gases produced in a gasification plant'1977 4,043,766'Slag bath generator'1977 4,013,427'Slag bath generator'1977 3,994,700'Apparatus for the low temperature carbonization of fine-grain fuels'1976 3,990,820'Apparatus for discharging hot liquid material from a pressure vessel'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1983Patents assigned to OTTO & CO GMBH DR C (13)· patent assignee history

1976–1987Based in Bochum, DE· patent location history

1979–1983Patents assigned to SAARBERGWERKE AG (4)· patent assignee history

1985–1995Patents assigned to DIDIER WERKE AG (5)· patent assignee history

1987Patents assigned to DANGUILLIER WILHELM (1)· patent assignee history

1987–1995Based in Heidenrod, DE· patent location history

1989Patents assigned to SIEMENS AG (2)· patent assignee history

1989Based in Oberschleissheim, DE· patent location history

1990Based in springen, DE· patent location history

2001Based in Duisburg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OTTO & CO GMBH DR C	13	1976–1983
DIDIER WERKE AG	5	1985–1995
SAARBERGWERKE AG	4	1979–1983
SIEMENS AG	2	1989
DANGUILLIER WILHELM	1	1987

Locations

Location	Patents	Span
Bochum, DE	14	1976–1987
Heidenrod, DE	3	1987–1995
Oberschleissheim, DE	2	1989
Duisburg, DE	1	2001
springen, DE	1	1990