Inventor
DAW DAVID E
US16 patents
⚠️ This page may combine multiple inventors who share the name “DAW DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HVAC INVENTORS/SYSTEMATION INC
6 patentsUS11213878B2Jan 4, 2022
Apparatus and method for forming duct flanges and duct work
HVAC INVENTORS/SYSTEMATION INC2 citations67
US11697147B2Jul 11, 2023
Apparatus and method for forming duct flanges and duct work
HVAC INVENTORS/SYSTEMATION INC0 citations56
US9937592B2Apr 10, 2018
Apparatus and method for placement of angle plates in transverse duct flanges
HVAC INVENTORS/SYSTEMATION INC0 citations50
US9925627B2Mar 27, 2018
Apparatus and method for placement of angle plates in transverse duct flanges
HVAC INVENTORS/SYSTEMATION INC0 citations50
US9545695B2Jan 17, 2017
Apparatus and method for placement of angle plates in transverse duct flanges
HVAC INVENTORS/SYSTEMATION INC1 citations50
US12257618B1Mar 25, 2025
Apparatus and method for closing duct seams and for inserting angle plates and closing duct seams
HVAC INVENTORS/SYSTEMATION INC0 citations46
HVAC INVENTORS SYSTEMATION INC
4 patentsUS9151513B1Oct 6, 2015
Apparatus and method for placement of angle plates in transverse duct flanges
HVAC INVENTORS SYSTEMATION INC3 citations71
US9027376B2May 12, 2015
Apparatus and method for inserting angle plates and closing duct seams
HVAC INVENTORS SYSTEMATION INC5 citations71
US8959755B2Feb 24, 2015
Apparatus and method for placement of angle plates in transverse duct flanges
HVAC INVENTORS SYSTEMATION INC3 citations71
US9157653B2Oct 13, 2015
Apparatus and method for inserting angle plates and closing duct seams
HVAC INVENTORS SYSTEMATION INC1 citations50