DH

Douglas Hanneken

HA Handi-Craft: 3 patents #1 of 5Top 20%
📍 Chesterfield, MO: #60 of 829 inventorsTop 8%
🗺 Missouri: #195 of 2,681 inventorsTop 8%
Overall (2020): #92,533 of 565,922Top 20%
3
Patents 2020

Issued Patents 2020

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D905229 Electric breast pump Amanda Auger 2020-12-15
10799046 Valve assembly for a leak resistant drinking cup Xiangwen Zhang, Bernard J. Kemper 2020-10-13
10750902 Warming apparatus for warming the contents of a foodstuff container 2020-08-25