DH

Douglas V. Henderson

HI Hallmark Cards, Incorporated: 1 patents #9 of 22Top 45%
📍 Topeka, KS: #3 of 22 inventorsTop 15%
🗺 Kansas: #344 of 1,136 inventorsTop 35%
Overall (2024): #482,892 of 561,600Top 90%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12139359 Fin belt dump gate system and method Huston Perry Hund, Glen Orrin Coats 2024-11-12