Inventor · disambiguated record

John Birkmann

Also filed as: BIRKMANN JOHN · BIRKMANN JOHN PATRICK

2 granted patents·5 citations·filing 2014–2015

49Inventor score

Technology areasB61D

Files withAMERICAN RAILCAR IND INC1 UNION PACIFIC RAILROAD CO1

Top patents by PatentIndex Score

2 records

0173US10246106B2Flooring incorporating open and enclosed air ductsUNION PACIFIC RAILROAD CO·Filed 2015·Granted Apr 2, 2019·3 cites·40 claims
0256US9789882B2Door sealing assembly for a railcar and method of assembling the sameAMERICAN RAILCAR IND INC·Filed 2014·Granted Oct 17, 2017·2 cites·10 claims

Join the waitlist — get patent alerts

Get an alert when John Birkmann 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 →