DS

David W. Pehrson, Sr.

📍 Londonderry, NH: #188 of 312 inventorsTop 65%
🗺 New Hampshire: #7,386 of 12,181 inventorsTop 65%
Overall (All Time): #3,665,842 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5977087 Topical preparation for treatment of aphthous ulcers and other lesions Michael P. Romanowsky 1999-11-02