HR

Hal Richardson

WL Waters Investments Limited: 2 patents #41 of 112Top 40%
WT Waters Technologies: 1 patents #248 of 422Top 60%
📍 Westborough, MA: #219 of 500 inventorsTop 45%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,570,111 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7754075 Backflow prevention for high pressure gradient systems Richard W. Andrews 2010-07-13
7396469 Backflow prevention for high pressure gradient systems Richard W. Andrews 2008-07-08
6780315 Backflow prevention for high pressure gradient systems Richard W. Andrews 2004-08-24