Lakewood, New Jersey
United States
4
2013-06-13
Joseph Eichenstein from Lakewood, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Low-cost door key with switch sensor indicator to detect dead bolt lock status
#2 | 2010-12-30Dead bolt lock reminder using passive receiver
#3 | 2010-12-16Dead bolt lock reminder triggered by proximity detector
#4 | 2010-12-16Low-cost switch sensor remote dead bolt status indicator
279663 ⎘