Inventor

JOHNSON ROGER S

US3 patents

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

CIPHER DATA PROD

2 patents

US4704645ANov 3, 1987

Transport for tape cartridge with leader block

CIPHER DATA PROD31 citations89

US4809099AFeb 28, 1989

Transport for tape cartridge with leader block

CIPHER DATA PROD8 citations69

SWIFT BRIAN L

1 patent

US9403703B2Aug 2, 2016

Guanidine-based polymers for separation processes

SWIFT BRIAN L2 citations59