Virginia Beach, Virginia
United States
5
2014-09-18
Patrick E. Keller from Virginia Beach, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Sentinel event reducing safety knobs
#2 | 2014-05-29Suicide prevention device
#3 | 2012-08-09Sentinel event reducing safety knobs
#4 | 2010-04-29Suicide prevention device
#5 | 2010-01-21Sentinel event reducing safety knobs
774307 ⎘