Home › 2021 › Inventors › David Alan Putnam

David Alan Putnam — 1 Patent in 2021

West Monroe, LA: #2 of 4 inventorsTop 50%

Louisiana: #161 of 687 inventorsTop 25%

Overall (2021): #480,343 of 548,734Top 90%

1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
11118323	Traffic-compatible vented precipitation guarding manhole cover assemblies	—	2021-09-14