DH

David R. Hallquist

ST Stillpoints: 2 patents #2 of 7Top 30%
Overall (All Time): #1,969,343 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10151105 Acoustic panel Alfonso E. Perez, Paul J. Wakeen 2018-12-11
9702143 Acoustic panel Alfonso E. Perez, Paul J. Wakeen 2017-07-11