BL

Baohai Liu

TP The Protectoseal: 2 patents #4 of 11Top 40%
📍 Carol Stream, IL: #138 of 346 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,206,812 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6629621 Gauge hatch with liquid seal Thomas C. Piotrowski, Martin Clift 2003-10-07
6056005 Vent valve with liquid seal Thomas C. Piotrowski, Martin Clift 2000-05-02