Inventor

Ekkehard Niemann

Inventor

Maintal, DE

Overview

6→

Patents

1990–2002

Patent span

Electricity

Primary field (CPC H)

Patents· 6 as inventor

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

H10Dprimary

H10DInorganic electric semiconductor devices22%

C23CCoating metallic material11%

C30BSingle-crystal growth11%

G03GElectrography11%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation11%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1011%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution11%

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

PatentTitleYear

6,383,902'Method for producing a microelectronic semiconductor component'2002 5,856,231'Process for producing high-resistance silicon carbide'1999 5,747,831'SIC field-effect transistor array with ring type trenches and method of producing them'1998 5,122,249'Method of producing a cover layer of amorphous carbon on a substrate'1992 4,931,412'Method of producing a thin film solar cell having a n-i-p structure'1990 4,900,646'Electrophotographic recording material and method of producing it'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1992Patents assigned to LICENTIA GMBH (3)· patent assignee history

1990–1999Based in Maintal, DE· patent location history

1998–1999Patents assigned to DAIMLER BENZ AG (2)· patent assignee history

2002Patents assigned to DAIMLER CHRYSLER AG (1)· patent assignee history

2002Based in Hanau, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LICENTIA GMBH	3	1990–1992
DAIMLER BENZ AG	2	1998–1999
DAIMLER CHRYSLER AG	1	2002

Locations

Location	Patents	Span
Maintal, DE	5	1990–1999
Hanau, DE	1	2002