IH

Ivan B. Helmirch

HI Hallmark Cards, Incorporated: 1 patents #130 of 288Top 50%
📍 Kansas City, MO: #987 of 1,876 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #2,868,650 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10352553 Apparatus for producing light and sound Jason Blake Penrod, Douglas L. Krivanek, Christopher J. Shields 2019-07-16