Inventor

LEMMA YOHANNES K

US3 patents

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

GCP APPLIED TECH INC

2 patents

US10577284B2Mar 3, 2020

Early strength enhancing concrete admixture

GCP APPLIED TECH INC3 citations65

US9624130B2Apr 18, 2017

Optimizing polycarboxylate admixtures for cementitious compositions

GCP APPLIED TECH INC1 citations45

W R GRACE & CO -CONN

1 patent

US9546110B2Jan 17, 2017

Superplasticizing admixture for cementitious compositions

W R GRACE & CO -CONN4 citations67