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Inventor

ANKENY MARK D

US8 patents
⚠️ This page may combine multiple inventors who share the name “ANKENY MARK D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DANIEL B STEPHENS & ASSOCIATES

4 patents
US6749368B2Jun 15, 2004

Design, monitoring and control of soil carburetors for degradation of volatile compounds

DANIEL B STEPHENS & ASSOCIATES102 citations93
US6467994B1Oct 22, 2002

Apparatus and method for beneficial use or handling of run-off or collected water

DANIEL B STEPHENS & ASSOCIATES72 citations92
US5421672AJun 6, 1995

Means and method for hydraulically isolating unsaturated zones in soil

DANIEL B STEPHENS & ASSOCIATES44 citations86
US5299140AMar 29, 1994

Means and method for measurement of porous materials

DANIEL B STEPHENS & ASSOCIATES29 citations85

UNIV IOWA STATE RES FOUND INC

3 patents
US5161407ANov 10, 1992

Means and method of soil water desorption

UNIV IOWA STATE RES FOUND INC53 citations85
US4884436ADec 5, 1989

Automated tension infiltrometer

UNIV IOWA STATE RES FOUND INC23 citations75
US5157959AOct 27, 1992

Automated ponded infiltrometer

UNIV IOWA STATE RES FOUND INC9 citations63

(unassigned)

1 patent
US6139221AOct 31, 2000

Constant hydraulic head moat and method for controlling regional ground water flow

8 citations62