Richard E. Keefer

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Lincoln, NE, US

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Patents Grantslast 30 patents

Information Patent Grant
Aerial work platform apparatus with anti-tipping supplement
- Patent number 6,425,459
- Issue date Jul 30, 2002
- Snorkel International, Inc.
- Richard E. Keefer
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Fluid sampling apparatus having a universal base
- Patent number 5,726,360
- Issue date Mar 10, 1998
- Isco, Inc.
- Richard Eugene Keefer
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Fluid sampling apparatus having a universal base
- Patent number 5,546,818
- Issue date Aug 20, 1996
- Isco, Inc.
- Richard E. Keefer
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL