Inventor

DUGAN JOHN J

CA6 patents

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

IMP OIL ENTERPRISES LTD

2 patents

US4147611AApr 3, 1979

Regeneration of alkali metal sulfides from alkali metal hydrosulfides

IMP OIL ENTERPRISES LTD21 citations77

US4147612AApr 3, 1979

Regeneration of alkali metal sulfides from alkali metal hydrosulfides

IMP OIL ENTERPRISES LTD22 citations77

EXXON RESEARCH ENGINEERING CO

2 patents

US5632867AMay 27, 1997

Recovering a relatively volatile component of a solution from a less volatile component, e.g. as in solvent recovery

EXXON RESEARCH ENGINEERING CO17 citations71

US4054512AOct 18, 1977

Deasphalting with liquid hydrogen sulfide

EXXON RESEARCH ENGINEERING CO15 citations70

DUGAN AIR TECHNOLOGIES INC

1 patent

US6161797ADec 19, 2000

Method and apparatus for reducing airplane noise

DUGAN AIR TECHNOLOGIES INC101 citations91

(unassigned)

1 patent

US6427801B1Aug 6, 2002

Apparatus for reducing noise in the jet engine

10 citations70