Inventor · disambiguated record
Keith Erwin Boonstra
Also filed as: BOONSTRA KEITH E · BOONSTRA KEITH ERWIN
5 granted patents·11 citations·filing 2010–2023
71Inventor score
Files withBOONSTRA KEITH E1BOONSTRA KEITH ERWIN1NOVA HUMIDITY LLC1ZEELAND WOOD TURNING WORKS1ZEELAND WOOD TURNING WORKS INC1
Top patents by PatentIndex Score
5 records- 0183US8991794B1Humidifier utilizing filtered waterBOONSTRA KEITH E·Filed 2010·Granted Mar 31, 2015·8 cites·20 claims
- 0275US9885487B2Humidifier utilizing filtered waterZEELAND WOOD TURNING WORKS·Filed 2015·Granted Feb 6, 2018·2 cites·20 claims
- 0372US10871297B2Humidifier utilizing filtered waterBOONSTRA KEITH ERWIN·Filed 2018·Granted Dec 22, 2020·1 cites·20 claims
- 0456US11959661B1Humidifier with removable locator moduleNOVA HUMIDITY LLC·Filed 2023·Granted Apr 16, 2024·0 cites·20 claims
- 0536US8978683B1Method of reducing downward flow of air currents on the lee side of exterior structuresZEELAND WOOD TURNING WORKS INC·Filed 2012·Granted Mar 17, 2015·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →