Inventor · disambiguated record

Max Ludwig

Also filed as: LUDWIG MAX

2 granted patents·65 citations·filing 1986–1986

66Inventor score

Technology areasG07F

Files withSIEMENS AG2

Top patents by PatentIndex Score

2 records

0160US4757186AMethod which allows continued use of a credit card which is expired in time or value unitsSIEMENS AG·Filed 1986·Granted Jul 12, 1988·37 cites·1 claims
0254US4746786AMethod and apparatus for evaluating units stored on credit cardsSIEMENS AG·Filed 1986·Granted May 24, 1988·28 cites·2 claims

Join the waitlist — get patent alerts

Get an alert when Max Ludwig files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →