David J. Knablein

📍 Fairview, PA: #56 of 90 inventorsTop 65%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,097,417 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4291494	Indoor greenhouse	Chandler D. Rees	1981-09-29