Inventor · disambiguated record

John D. Langdon

Also filed as: LANGDON JOHN D

2 granted patents·153 citations·filing 1986–1987

70Inventor score

Technology areasE04B F41J

Files withERICO INT CORP1 PIDDE VICTOR S1

Top patents by PatentIndex Score

2 records

0189US4757967ABox supportERICO INT CORP·Filed 1986·Granted Jul 19, 1988·94 cites·18 claims
0281US4807888ADevice for the automatic operation of international metallic silhouette target platformsPIDDE VICTOR S·Filed 1987·Granted Feb 28, 1989·59 cites·5 claims

Join the waitlist — get patent alerts

Get an alert when John D. Langdon 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 →