Inventor · disambiguated record
Steven Heffner
Also filed as: HEFFNER STEVEN · HEFFNER STEVEN P
3 granted patents·3 pending applications·141 citations·filing 1998–2004
76Inventor score
Top patents by PatentIndex Score
6 records- 0189US6446389B1Tandem sliding door operatorWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2000·Granted Sep 10, 2002·51 cites·18 claims
- 0287US6139073ALock assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Oct 31, 2000·74 cites·26 claims
- 0363US6739092B2Transit vehicle door operator and lockWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2002·Granted May 25, 2004·16 cites·11 claims
- 0443US2004159047A1Drive systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2004·Application pending·0 cites
- 0538US2004036596A1Security system and methodsFiled 2003·Application pending·0 cites
- 0636US2002092236A1Drive systemFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →