Inventor

Christoph Buchal

Inventor

Julich, DE

Overview

7→

Patents

1992–1999

Patent span

Electricity

Primary field (CPC H)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus21%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%

H01PWaveguides14%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light14%

C23CCoating metallic material7%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation7%

H10NElectric solid-state devices not otherwise provided for7%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%

PatentTitleYear

5,900,057'Planar waveguide and a process for its fabrication'1999 5,882,400'Method of producing a layer structure and the use of the method'1999 5,859,464'Optoelectronic diode and component containing same'1999 5,555,342'Planar waveguide and a process for its fabrication'1996 5,420,101'Structures super conductor tracks and process for making them'1995 5,282,260'Optical waveguide component and formed with rare earth ions'1994 5,174,876'Method of making an optical component by ion implantation'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1999Patents assigned to FORSCHUNGSZENTRUM JUELICH GMBH (5)· patent assignee history

1992–1999Based in Julich, DE· patent location history

1996–1999Patents assigned to LUCENT TECHNOLOGIES INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FORSCHUNGSZENTRUM JUELICH GMBH	5	1992–1999
LUCENT TECHNOLOGIES INC	2	1996–1999

Locations

Location	Patents	Span
Julich, DE	7	1992–1999