David J. Shannon

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Lincoln, NE, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydrogen sulfide analyzer
- Patent number 5,981,289
- Issue date Nov 9, 1999
- Isco, Inc.
- Paul G. Wright
- G05 - CONTROLLING REGULATING
Information Patent Grant
Water distillation unit
- Patent number D314225
- Issue date Jan 29, 1991
- Pure Water, Inc.
- David G. Palmer
- D23 - Environmental heating and cooling
Information Patent Grant
Water purification method and apparatus with conductivity sensing c...
- Patent number 4,975,154
- Issue date Dec 4, 1990
- Pure Water, Inc.
- David G. Palmer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Control for modular water distiller
- Patent number 4,943,353
- Issue date Jul 24, 1990
- Pure Water, Inc.
- David J. Shannon
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Water distillation unit
- Patent number D306338
- Issue date Feb 27, 1990
- Pure Water, Inc.
- Dale A. Rempe
- D23 - Environmental heating and cooling
Information Patent Grant
Water purification method and apparatus
- Patent number 4,888,097
- Issue date Dec 19, 1989
- Pure Water, Inc.
- David G. Palmer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE