David J. Livezey

📍 Kent, WA: #370 of 929 inventorsTop 40%

🗺 Washington: #35,300 of 76,902 inventorsTop 50%

Overall (All Time): #2,373,970 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4223659	Forced air heater	—	1980-09-23
4220131	Fireplace air heater	—	1980-09-02