Inventor

ECKERT ROBERT C

US8 patents

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

INT PAPER CO

4 patents

US4427490AJan 24, 1984

Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives

INT PAPER CO64 citations94

US4372812AFeb 8, 1983

Chlorine free process for bleaching lignocellulosic pulp

INT PAPER CO85 citations94

US4141786AFeb 27, 1979

Manganic ion delignification of lignocellulosic material

INT PAPER CO13 citations72

US4134787AJan 16, 1979

Delignification of lignocellulosic material with an alkaline liquor containing a cyclic amino compound

INT PAPER CO4 citations61

WEYERHAEUSER NR CO

2 patents

US7794824B2Sep 14, 2010

Carbon fibers from kraft softwood lignin

WEYERHAEUSER NR CO25 citations91

US7678358B2Mar 16, 2010

Carbon fibers from kraft softwood lignin

WEYERHAEUSER NR CO33 citations91

WESTVACO CORP

2 patents

US4119486AOct 10, 1978

Process for bleaching wood pulp with ozone in the presence of a cationic surfactant

WESTVACO CORP27 citations80

US3975232AAug 17, 1976

Three stage process for pulping lignocellulosic materials including a cyanide ion containing first stage

WESTVACO CORP0 citations50