Inventor

ROHANNA JOHN C

US4 patents

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

ROHM & HAAS

2 patents

US10428163B2Oct 1, 2019

Sulfonation process

ROHM & HAAS0 citations47

US10138124B2Nov 27, 2018

Treating sulfuric acid

ROHM & HAAS0 citations47

DOW GLOBAL TECHNOLOGIES LLC

1 patent

US9486798B2Nov 8, 2016

Method for making anion exchange and chelant resins including aliphatic amino functional groups

DOW GLOBAL TECHNOLOGIES LLC0 citations48

DDP SPECIALTY ELECTRONIC MAT US INC

1 patent

US11370852B2Jun 28, 2022

Making low-sodium resin

DDP SPECIALTY ELECTRONIC MAT US INC0 citations47