The Products behind the Patents

Behind every patent there is a new and useful product, method or chemical formula with the potential for a new business and profits. The patent serves to protect the inventions against the infringement.

The patents below issued through patent applications filed by Greenfield Invention and Patent Consulting, Inc, and are examples of the work the company performs.


US10,532,942 describes a process invented by Dr. Aicardo Roa Espinosa et al for removing water from particulate material slurries produced by horizontal drilling, vertical drilling and from dredging of bodies of water. The process comprises a first step of water removal accomplished by diffusing a chemical reagent into the particulate material source stream that results in separating out a clean water fraction and a second step of reacting the sludge with a demulsifier and a superabsorbent polymer that locks onto the water in the remaining slurry thus turning the slurry into a solid crust. The crust is ground into a particulate form and disposed in a landfill. The combined effect of the treatments is the thickening of the particulate material slurry from about 10% solids to about 25% solids. The removed water may be used for further drilling and drinking. Another benefit is the reduced volume of the particulate material that needs to be disposed in landfills.

US9,956,563 teaches a process for separating clean water which has an impurities content of less than 100 ppm from waste materials such as farm manure as developed by Dr. Aicardo Roa Espinosa et al. In a first step, a plate separator splits the waste material stream into a first effluent fraction and a first solids fraction. The first solids fraction then undergoes two stages of pressing to increase the solids contents to about 30 to 40 percent which makes it suitable for granulation or pelletizing. The first effluent fraction is treated in successive stages with various chemical agents resulting in the removal of most of the solids and inorganic impurities from the effluent to achieve drinkable water purity.

In US9,730,463 Dr. Aicardo Roa Espinosa presents a multi stage process for separating oil, protein, fiber and clean water from a stream containing whole stillage byproduct from ethanol production. In a first step, fibers are separated in a 2-step process that includes a plate separator and a press. In a subsequent step, the liquid stream separated from the fibers and contains oil, protein and water is treated with a composition that causes the protein to gel. The liquid stream is then processed in a phase separator such as a tricanter that drains the oil by gravity, removes the water by an impeller under pressure and removes the solidified protein using a scroll.

In US9,688,586 authored by Dr. Aicardo Roa Espinosa et al, a fertilizer structure contains at least a first modified oil layer that coats a fertilizer particle. Additional layers may include a modified fiber layer that coats the modified oil layer, and a layer of diatomaceous earth mineral particles and a superabsorbent layer. The structure may be constructed by placing fertilizer particles in a rotating drum, then adding the materials for each layer consecutively into the drum at appropriate conditions. The modified fertilizer structure is configured to gradually release the nutrients into the soil over a desired period of time.

In US10,273,643 authored by Dr Scott Parazynski et al, a waste collection and isolation device and a method for picking up waste materials without the need for the user to come in contact with the waste are disclosed. The device contains a system for ensnaring solid waste in a bag, a mechanism for activating the system for ensnaring the waste and a system for removing the bag. To use the device, the user installs a bag over a housing containing a plurality of overlapping cords. The user places the opening of the bag over the waste disposed on a surface and then activates the snaring mechanism causing the cords to entangle under the solid waste and to close the bag opening with the waste inside it. The bag comprises a drawstring and a tab in a fixed position. To fully close the bag, the user pulls on the drawstring and pulls the bag onto the tab.

Tom Wiedemeier of Porterfield, WI developed in US10,234,198 a device and process for heating wood for the purpose of eradicating burrowed pests such as gypsy moths and emerald ash borer beetles. The device is used for treating firewood and pallets made of wood to ensure that burrowed pests are killed before transporting the wood across state lines in following of state regulations. The device comprises a conveyor adapted for transporting firewood or pallets an insulated and heated chamber. The wood core temperature of the wood is monitored using wireless temperature sensors. Conveyor speed is adjusted according to temperature readings in order to achieve a threshold wood core temperature and in order to maintain the threshold wood core temperature for the minimum required period of time.

Joe Bentley of Harvard IL invented in US10,286,284 a golf training device comprising an elastic band loop attached to a strap wrapped around the lead shoulder of the golfer at one end and to the shaft of the golf club at the other end and another elastic band loop attached to a strap wrapped around the lead shoulder of the golfer at one end and to the butt end of the grip of the golf club at the other end. When the golfer extends his or her arms to swing the golf club, the resistance provided by the rubber bands helps guide the golfer's swing by informing the proper location of the arms and hands of the golfer relative to the body for maximum leverage throughout the golf swing.

Utility patents

US10,420,292, US10,342,364, US9,920,528, US9,920,527, US9,888,701, US9,836,910, US9,598,896, US9,528,233, US9,516,891, US9,422,663, US9,371,356, US9,249,039, US9,227,122, US9,162,856, US9,157,706, US9,142,337, US9,089,232, US9,051,538, US8,907,201, US8,907,113, US8,819,949, US8,719,758, US8,615,937, US8,561,850, US8,453,337, US8,444,810, US8,418,385, US8,365,849, US8,322,925, US8,176,672, US8,162,365, US8,109,238, US7,958,878, US7,759,569, RE47,268

Design patents

D833,347, D778,071, D754,758, D753,930, D752,172, D751,186, D742,700, D728,182, D722,123, D708,029, D707,980, D706,647, D702,886, D701,396, D697,326, D695,173, D690,265, D689,254, D688,142, D680,083, D676,355, D668,009, D666,844, D666,014, D665,168, D664,068, D664,031, D663,127, D663,093, D661,310, D658,941, D657,192, D635,738