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NRP Patents

Pore-Water Profiler

Murphy, F., Kuwabara; J.S., Topping; B.R., F. and, Myhre, R.C., 2011

Figure from US Patent 8,051,727.

US Patent 8,051,727 A pore-water profiler and method for sampling pore water. The pore-water profiler includes a sample intake probe that receives the fluid to be sampled. A clog-resistant first filter filters the fluid... (full details are available at the USPTO website)

Sequential, Time-Integrated Collector of Precipitation, Ground Water, and Surface Water for Analysis of Isotopes

Coplen II, T.B., 2010

Figure from US Patent 7,687,028.

US Patent 7,687,028 A sequential, time-integrated collector having an electronic controller that actuates either of two electrically-actuated valves, each connected to a water reservoir. At a preset time interval... (full details are available at the USPTO website)

Solar Distillation Loop Evaporation Sleeve

Constantz, J.; issued March 10, 2009, as continuation-in-part to US 7,1108,769, 2009

Figure from US Patent 7,501,046.

US Patent 7,501,046 An evaporation sleeve is placed within a solar distillation loop apparatus to increase the amount of water evaporated by the apparatus. The evaporation sleeve is rotationally attached within... (full details are available at the USPTO website)

Measurement of Surface Areas by Polyvinylpyrrolidone Sorption

Blum, A.E., and Eberl, D.D., 2007

Figure from US Patent 7,264,777.

US Patent 7,264,777A method of quantitatively determining surface area of a sample uses polyvinylpyrrolidone (PVP) dispersed in a solution containing the sample, and determining... (full details are available at the USPTO website)

Solar Distillation Loop

Constantz, J., 2006

Figure from US Patent 7,108,769.

US Patent 7,108,769 A solar distillation loop apparatus includes a first pipe section disposed on a ground surface, the first pipe section including a substantially straight portion and elevated portions on each end of... (full details are available at the USPTO website)

A Bioreactor for the Oxidation of the Fumigant Methyl Bromide

Miller, L.G., Oremland, R.S., and Baesman, S.M., 2005

Figure from US Patent 6,916,446.

US Patent 6,916,446 Methyl halide contaminants are oxidized in a reaction chamber containing a methylotrophic bacterium through direct oxidation of the methyl halide contaminant. Methyl halides may be used as... (full details are available at the USPTO website)

Sorbant Sequestration and Removal of Toxic Metal Ions

Harthill, M.K., and Simon, N.S., 2005

US Patent 6,896,813 A matrix for water decontamination has an amended sorbant cellulose substrate with an iron (ferric) oxyhydroxide component and a component to sorb dissolved... (full details are available at the USPTO website)

Small-Scale, Hydrogen-Oxidizing Denitrifying Bioreactor

Smith, R.L., 2005

Figure from US Patent 6,863,815.

US Patent 6,863,815 A method for treating nitrate-contaminated water comprising treating said water with hydrogen-oxidizing denitrifying bacteria in the presence of... (full details are available at the USPTO website)

Borehole Testing System (Shapiro, A.M., 2004)
US Patent 6,761,062
A self-contained, transportable system for conducting any of hydrologic tests or water sampling techniques without the need for retooling or readjusting the system. The system includes a borehole unit for conducting... (full details are available at the USPTO website)

Deep Aquifer Remediation System (Naftz, D. L., and Davis, J.A., 2002)
US Patent 6,458,271
A groundwater decontamination system includes a decontamination unit adapted to be lowered down through a non-pumping well into an aquifer containing contaminated water. The unit can also be raised up and out of the non-pumping well for... (full details are available at the USPTO website)

Aquifer Remediation Barrier for Removal of Inorganic Contaminants (Naftz, D. L., and Davis, J.A., 2002)
US Patent 6,428,695
A permeable barrier for decontaminating groundwater having two distinct components for increasing contaminant removal. Preferably, the barrier material is a mixture or distinct layers of bone-char phosphate material and iron oxide pellets. The barrier material can be... (full details are available at the USPTO website)

Crystallization of Powders Having Uniform Particle Sizes by Ostwald Ripening at Large Levels of Supersaturation (Eberl, D.D., Kile, D.E., and Hoch, A.R., 2002)
US Patent 6,379,459
A method is provided for the manufacture of mineral power crystals having a uniform mean size. The method includes forming a solution which is highly supersaturated with respect to... (full details are available at the USPTO website)

Method for Enhancing Oxidation of Methyl Bromide With Strain IMB-1 (ATCC 202197) During Agricultural Fumigations (Oremland, R.S., Connell, T.L., Miller; L.G., 2000)
US Patent 6,013,254
A method is provided for enhancing oxidation of methyl bromide during agricultural fumigations of fields using a fumigant containing methyl bromide. The method comprises adding a methylotrophic bacterium to the soil in an amount effective to provide bacterial oxidation of... (full details are available at the USPTO website)

Selenate Removal from Waste Water (Oremland, R.S., 1993)
US Patent 5,271,831
A method and apparatus for removing selenate from waste water through the use of selenate respiring microorganisms under substantially anoxic conditions is described. The method includes a first zone for removing nitrate by... (full details are available at the USPTO website)

Selenate Removal from Waste Water (Oremland, R.S., 1991)
US Patent 5,009,786
A method and apparatus for removing selenate from waste water through the use of selenate respiring microorganisms under substantially anoxic conditions is described. The method includes a first zone for removing nitrate by... (full details are available at the USPTO website)

Method and Apparatus for Steady-State Measurement of Liquid Conductivity in Porous Media (Rubin, J., Hammermeister, D.P. , Nimmo, J.R., 1987)
US Patent 4,679,422
In the operation of the present invention, a compacted porous medium is provided with a supply of the desired liquid and is subjected to centrifugal force until the measurement of the flow rate of liquid through the medium is... (full details are available at the USPTO website)