RH

Robert H. Hofeldt

WC W.R. Grace & Co.-Conn.: 3 patents #242 of 1,045Top 25%
W& W. R. Grace &: 2 patents #100 of 433Top 25%
📍 Littleton, MA: #95 of 347 inventorsTop 30%
🗺 Massachusetts: #20,307 of 88,656 inventorsTop 25%
Overall (All Time): #852,714 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9017222 Machine for testing and training jumping and reaching ability Albert John Hofeldt 2015-04-28
5227411 Sealed containers and sealing compositions for them Steven White 1993-07-13
5204389 Sealed containers and sealing compositions for them Stephen A. White 1993-04-20
5106886 Sealed containers and sealing compositions for them Stephen A. White 1992-04-21
4485192 Plastisol sealing gaskets puffed with hollow discrete spheres David A. Gibbs, Charles A. Billings 1984-11-27
4278718 Sealing compositions for minimizing soluble iron migration Charles A. Billings 1981-07-14