JR

John L. de Ris

FR Factory Mutual Research: 2 patents #1 of 5Top 20%
📍 Sharon, MA: #4 of 66 inventorsTop 7%
🗺 Massachusetts: #731 of 6,384 inventorsTop 15%
Overall (2002): #58,684 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6499357 Heat flux measurement pipe and method for determining sprinkler water delivery requirement Ronald L. Alpert, Lawrence Orloff 2002-12-31
6367560 Wet sprinkler system for cold environments Joseph Hankins, Wayne H. Wilke 2002-04-09