Inventor

PETTIGREW DENIS

CA3 patents

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

PREMIER TECH 2000 LTEE

1 patent

US7097768B2Aug 29, 2006

Coconut mesocarp-based biofilter material and its use in a wastewater treatment system

PREMIER TECH 2000 LTEE7 citations68

PREMIER TECH EAU ET ENVIRONNEMENT LTEE

1 patent

US12570558B2Mar 10, 2026

Biofilter block and use thereof for wastewater treatment

PREMIER TECH EAU ET ENVIRONNEMENT LTEE0 citations53

PREMIER TECH TECHNOLOGIES LTEE

1 patent

US7790035B2Sep 7, 2010

Tertiary system and process for treating a liquid effluent from an onsite domestic secondary treatment unit

PREMIER TECH TECHNOLOGIES LTEE2 citations52