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Inventor

Max Ludwig

Inventor
Munich, DE

Overview

2→
Patents
1988
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G06Qprimary
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes40%
G07FCoin-freed or like apparatus40%
H04MTelephonic communication20%
PatentTitleYear
4,757,186'Method which allows continued use of a credit card which is expired in time or value units'19884,746,786'Method and apparatus for evaluating units stored on credit cards'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to SIEMENS AG (2)· patent assignee history
1988Based in Munich, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SIEMENS AG21988
Locations
LocationPatentsSpan
Munich, DE21988