KB

Keith Erwin Boonstra

📍 Holland, MI: #306 of 1,299 inventorsTop 25%
🗺 Michigan: #18,390 of 86,293 inventorsTop 25%
Overall (All Time): #927,605 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11959661 Humidifier with removable locator module 2024-04-16
10871297 Humidifier utilizing filtered water 2020-12-22
9885487 Humidifier utilizing filtered water 2018-02-06
8991794 Humidifier utilizing filtered water 2015-03-31
8978683 Method of reducing downward flow of air currents on the lee side of exterior structures 2015-03-17