IH

Ivan B. Helmrich

HI Hallmark Cards, Incorporated: 1 patents #4 of 20Top 20%
📍 Kansas City, MO: #49 of 192 inventorsTop 30%
🗺 Missouri: #607 of 2,337 inventorsTop 30%
Overall (2022): #421,715 of 548,613Top 80%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11499706 Apparatus for producing light and sound Jason Blake Penrod, Douglas L. Krivanek, Christopher J. Shields 2022-11-15