Inventor

HOPSTOCK DAVID M

US8 patents

⚠️ This page may combine multiple inventors who share the name “HOPSTOCK DAVID M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MINNESOTA MINING & MFG

2 patents

US5853846ADec 29, 1998

Conformable magnetic articles underlaid beneath traffic-bearing surfaces

MINNESOTA MINING & MFG96 citations96

US5378384AJan 3, 1995

Process of making hexagonal magnetic ferrite pigment for high density magnetic recording applications

MINNESOTA MINING & MFG11 citations72

IMATION CORP

2 patents

US5626956AMay 6, 1997

Hexagonal magnetic ferrite pigment for high density magnetic recording applications

IMATION CORP9 citations72

US5616414AApr 1, 1997

Hexagonal magnetic ferrite pigment for high density magnetic recording applications

IMATION CORP16 citations72

3M INNOVATIVE PROPERTIES CO

1 patent

US6468678B1Oct 22, 2002

Conformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use

3M INNOVATIVE PROPERTIES CO92 citations95

UNIV MINNESOTA

1 patent

US6253924B1Jul 3, 2001

Magnetic separator apparatus and methods regarding same

UNIV MINNESOTA61 citations95

CORNING INC

1 patent

US6650815B2Nov 18, 2003

Optical fiber encoded with data signal

CORNING INC36 citations92

US INTERIOR

1 patent

US4192738AMar 11, 1980

Process for scavenging iron from tailings produced by flotation beneficiation and for increasing iron ore recovery

US INTERIOR50 citations86