DS

David Spencer

📍 Commerce, MI: #2 of 16 inventorsTop 15%
🗺 Michigan: #2,033 of 10,747 inventorsTop 20%
Overall (2019): #179,224 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D864423 Insert strip for shingled roofs 2019-10-22
D851288 Insert for roof shingle or tile Mark Edgson 2019-06-11