Inventor

Hans J. Langer

Inventor

Grafelfing, DE

Overview

14→

Patents

1987–2000

Patent span

Performing operations

Primary field (CPC B)

Patents· 14 as inventor

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

B29Cprimary

B29CShaping or joining of plastics28%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering15%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

Y02PClimate change mitigation technologies in the production or processing of goods8%

B22FWorking metallic powder5%

B66BElevators5%

G02BOptical elements, systems or apparatus5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

B22CFoundry moulding3%

B23KSoldering or unsoldering3%

PatentTitleYear

6,155,331'Method for use in casting technology'2000 5,932,059'Method for producing a three-dimensional object'1999 5,897,825'Method for producing a three-dimensional object'1999 5,832,415'Method and apparatus for calibrating a control apparatus for deflecting a laser beam'1998 5,819,910'Noise reduced step chain sprocket'1998 5,753,171'Method and apparatus for producing a three-dimensional object'1998 5,658,412'Method and apparatus for producing a three-dimensional object'1997 5,647,931'Method and apparatus for producing a three-dimensional object'1997 5,582,876'Stereographic apparatus and method'1996 5,536,467'Method and apparatus for producing a three-dimensional object'1996 5,534,104'Method and apparatus for production of three-dimensional objects'1996 5,460,758'Method and apparatus for production of a three-dimensional object'1995 4,725,089'Stowage compartment'1988 4,669,597'Escalator skirt panel'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1998Patents assigned to OTIS ELEVATOR CO (2)· patent assignee history

1987–1998Based in Hespe, DE· patent location history

1988Patents assigned to GEN MOTORS CORP (1)· patent assignee history

1988Based in Darmstadt, DE· patent location history

1995–2000Patents assigned to EOS ELECTRO OPTICAL SYST (8)· patent assignee history

1995–2000Based in Grafelfing, DE· patent location history

1996–1999Patents assigned to EOS GMBH OPTICAL SYSTEMS (2)· patent assignee history

1996Based in Gr afelfing, DE· patent location history

1999Patents assigned to 3D SYSTEMS INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EOS ELECTRO OPTICAL SYST	8	1995–2000
EOS GMBH OPTICAL SYSTEMS	2	1996–1999
OTIS ELEVATOR CO	2	1987–1998
3D SYSTEMS INC	1	1999
GEN MOTORS CORP	1	1988

Locations

Location	Patents	Span
Grafelfing, DE	10	1995–2000
Hespe, DE	2	1987–1998
Gr afelfing, DE	1	1996
Darmstadt, DE	1	1988