MH

Martha K. Hardwick

MA Mattel: 2 patents #399 of 1,179Top 35%
AS American Hospital Supply: 1 patents #122 of 315Top 40%
📍 Redondo Beach, CA: #492 of 1,594 inventorsTop 35%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,675,145 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4648868 Apparatus for controlling flow and pressure measurement Kelly A. Pike, George D. Evans, Ronald Edwards, Jacob J. Norman 1987-03-10
4355806 Electronic jacks game Gordon H. Buck, Paul W. Cayley, Jr., Daniel J. Shoff 1982-10-26
4296926 Red light - green light game Gordon H. Buck 1981-10-27