Inventor

HERRIES JOHN

US3 patents

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

WELLDOG INC

1 patent

US6678050B2Jan 13, 2004

In-situ detection and analysis of methane in coal bed methane formations with spectrometers

WELLDOG INC73 citations93

POPE JOHN

1 patent

US7821635B2Oct 26, 2010

In-situ detection and analysis of methane in coal bed methane formations with spectrometers

POPE JOHN19 citations89

POPE JOHN M

1 patent

USRE44728EJan 28, 2014

In-situ detection and analysis of methane in coal bed methane formations with spectrometers

POPE JOHN M13 citations88