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Inventor

Siegfried Kalbitzer

Inventor
Heidelberg, DE

Overview

2→
Patents
1979–1988
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices20%
H10DInorganic electric semiconductor devices20%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1020%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
4,764,432'Photo-mask with regions having a differing optical transmissivities'19884,169,740'Method of doping a body of amorphous semiconductor material by ion implantation'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1988Patents assigned to MAX PLANCK GESELLSCHAFT (2)· patent assignee history
1979–1988Based in Heidelberg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MAX PLANCK GESELLSCHAFT21979–1988
Locations
LocationPatentsSpan
Heidelberg, DE21979–1988