Charles L. Summers

📍 Boxborough, MA: #143 of 320 inventorsTop 45%

🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%

Overall (All Time): #1,541,294 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
10473430	Vision enhancement apparatus	—	2019-11-12
8418395	Vision enhancement apparatus to improve both near and far vision	—	2013-04-16
7886477	Vision enhancement apparatus to improve both near and far vision	—	2011-02-15