Inventor · disambiguated record
Charles A. Wisniewski
Also filed as: WISNIEWSKI CHARLES A
2 granted patents·1 pending application·2 citations·filing 2009–2016
45Inventor score
Top patents by PatentIndex Score
3 records- 0166US9457821B2Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applicationsWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2015·Granted Oct 4, 2016·1 cites·9 claims
- 0254US2016332645A1Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applicationsWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2016·Application pending·0 cites
- 0342US8989926B2Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applicationsPRETORIUS FRANCOIS·Filed 2009·Granted Mar 24, 2015·1 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when Charles A. Wisniewski 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 →