Inventor · disambiguated record
Mark A. Shumaker
Also filed as: SHUMAKER MARK A
3 granted patents·41 citations·filing 1991–2020
65Inventor score
Top patents by PatentIndex Score
3 records- 0189US11624208B2Door lock having a lighted display when in the locked positionOak Security Group LLC·Filed 2020·Granted Apr 11, 2023·5 cites·22 claims
- 0269US5116170ADrill jig for preparing a door to receive a cylindrical lockBEST LOCK CORP·Filed 1991·Granted May 26, 1992·36 cites·18 claims
- 0339US11946284B2Door lock capable of showing locking or unlocking stateOak Security Group LLC·Filed 2019·Granted Apr 2, 2024·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →