Assignee
ELJEN CORP
US8 patents
Top patents by PatentIndex Score
US4787772ANov 29, 1988
Device for detecting leaks in underground fluid tanks
ELJEN CORP50 citations92
US4917536AApr 17, 1990
Fluid storage system
ELJEN CORP34 citations89
US4878421ANov 7, 1989
Radon venting system for existing structures
ELJEN CORP12 citations70
US12595191B2Apr 7, 2026
Wastewater unit with internal sandwiched connector
ELJEN CORP0 citations61
US12343661B2Jul 1, 2025
Fluid drainage system with textured core sheets
ELJEN CORP0 citations61
US12023606B2Jul 2, 2024
Textured core sheets for fluid drainage unit
ELJEN CORP0 citations61
US11254587B1Feb 22, 2022
Internal connector for modular fluid treatment system
ELJEN CORP1 citations59
US12352032B2Jul 8, 2025
Chamber for subsoil fluid treatment
ELJEN CORP0 citations51