JH

John A. Helmsderfer

UN Unknown: 9 patents #1,046 of 83,584Top 2%
PL Partners In Innovation Limited: 7 patents #1 of 10Top 10%
MC Mcguire Manufacturing Co.: 3 patents #1 of 4Top 25%
TR Truebro: 2 patents #3 of 4Top 75%
📍 East Liverpool, OH: #1 of 49 inventorsTop 3%
🗺 Ohio: #644 of 73,341 inventorsTop 1%
Overall (All Time): #47,606 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
D378966 Platform for a baby diaper changing station 1997-04-29
5586568 Cover assembly and method for covering undersink piping 1996-12-24
5564463 Cover assembly for covering undersink piping 1996-10-15
5341830 Cover assembly and method for covering undersink piping T. Michael McRoberts 1994-08-30