BW

Bill Witherspoon

ES Emseal Joint Systems: 4 patents #2 of 4Top 50%
📍 Guelph, CA: #5 of 82 inventorsTop 7%
Overall (2020): #58,841 of 565,922Top 15%
4
Patents 2020

Issued Patents 2020

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10851542 Fire and water resistant, integrated wall and roof expansion joint seal system Lester Hensley, Walter C. Jones 2020-12-01
10787805 Fire and/or water resistant expansion and seismic joint system Lester Hensley 2020-09-29
10787806 Fire and/or water resistant expansion and seismic joint system Lester Hensley 2020-09-29
10570611 Method of making a water resistant expansion joint system Lester Hensley 2020-02-25