Inventor

PUTMAN GEORGE W

US4 patents

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

TERRAN RESEARCH INC

2 patents

US4981394AJan 1, 1991

Method of sealing permeable unconsolidated materials

TERRAN RESEARCH INC28 citations87

US4869621ASep 26, 1989

Method of sealing permeable earth surface or subsurface materials having alkaline conditions by induced precipitation of carbonates

TERRAN RESEARCH INC22 citations77

BIRD JOHN M

2 patents

US7381014B1Jun 3, 2008

Natural analog system for reducing permeability of ground

BIRD JOHN M10 citations81

US9022698B2May 5, 2015

Natural analog system for reducing permeability of ground

BIRD JOHN M0 citations49