Mark D. Ankeny

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Ames, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Means and method for measurement of porous materials
- Patent number 5,299,140
- Issue date Mar 29, 1994
- Daniel B. Stephens & Associates, Inc.
- Mark D. Ankeny
- G01 - MEASURING TESTING
Information Patent Grant
Means and method of soil water desorption
- Patent number 5,161,407
- Issue date Nov 10, 1992
- Iowa State University Research Foundation, Inc.
- Mark D. Ankeny
- G01 - MEASURING TESTING
Information Patent Grant
Automated ponded infiltrometer
- Patent number 5,157,959
- Issue date Oct 27, 1992
- Iowa State University Research Foundation, Inc.
- Mark D. Ankeny
- G01 - MEASURING TESTING
Information Patent Grant
Automated tension infiltrometer
- Patent number 4,884,436
- Issue date Dec 5, 1989
- Iowa State University Research Foundation, Inc.
- Mark D. Ankeny
- G01 - MEASURING TESTING