DH

David Helmlinger

MA Mattel: 2 patents #6 of 93Top 7%
📍 Charlotte, NC: #10 of 161 inventorsTop 7%
🗺 North Carolina: #296 of 2,876 inventorsTop 15%
Overall (2005): #59,348 of 245,428Top 25%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6971942 Rotary feedback mechanism for a toy Ernest D. Baker, Leonard R. Clark, Jr., Jesse Dorogusker, Eric Listenberger, Joseph Thomas Moll +2 more 2005-12-06
6960112 Airfoil blade with cushioned edge for powered toy aircraft Gregory Gilbert Garneau, Lee Chun Wah, Chung Jie 2005-11-01