...In 1790, the cost to obtain a patent was between $4 and $5.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6426423 | Methods for treating phosphatide-containing mixtures This invention relates to improved methods for treating phosphatide-containing mixtures. More particularly, this invention relates to methods for recovering purified vegetable oil, aqueous organic acid, and organic acid-treated phosphatide from a phosphat... | 07/30/2002 |
| 6399802 | Method for soapstock acidulation Methods for acidification of soapstock and recovery of acidulated fatty acids are disclosed. Further methods of conversion of the acidulated fatty acids to esters are also disclosed. Further methods of crystallizing the acidulated fatty acids from the ext... | 06/04/2002 |
| 5696278 | Degumming of crude glyceride oils not exposed to prior enzymatic activity The present invention relates to a process for the preparation of degummed glyceride oils, which comprises applying an acid degumming treatment to a crude glyceride oil which has not substantially been exposed to enzymatic activity. Preferably such crude ... | 12/09/1997 |
| 5565590 | Process for recycling amino-carboxylic acid waste materials into amido-carboxylic acids This invention relates to a process for recycling waste material selected from amino-carboxylic acid oligomers or polymers and amido-carboxylic acid oligomers or polymers into amido-carboxylic acids. A mixture containing water, an oligomeric or polymeric ... | 10/15/1996 |
| 5424466 | Improved process for the production of esters from fatty substances having a natural origin A description is given of an improved process for the production of esters from fatty substances having a natural origin (animal and vegetable oils) and low molecular weight alcohols, in which the soaps and oily compounds entrained in the alkaline phases ... | 06/13/1995 |
| 5239096 | Degumming process for plant oils A method of removing gums which cannot be removed by simple water degumming from plant oils having the following steps: (a) adding to a plant oil containing gum substances not hydratable with water and wax substances, substantially 0.01 to 0.08% of a food acid... | 08/24/1993 |
| 5210240 | Process for the extraction of oil containing vegetable materials A process for the extraction of oils from oil-containing solid vegetable material by means of compressed gases, wherein said vegetable material is extracted with a mixture consisting of a supercritical gas and a subcritical entraining agent selected from ... | 05/11/1993 |
| 5066501 | Fluidization of soapstock The present invention is directed to a method for treatment of soapstock obtained by alkali refining of fats to provide a fluid, uniform, pumpable animal feed product. In the method, a raw soapstock is provided. Propionic acid is added to the raw soapstoc... | 11/19/1991 |
| 4836843 | Fertilizer process A method of fertilizing soil comprising the steps of treating soapstock with an acid containing phosphorus compounds, separating the acid oil from the acid water, and using the resulting acid water as fertilizer, or fertilizer component. Such use is parti... | 06/06/1989 |
| 4671902 | Process for obtaining fatty acid product from glyceride oil soapstock The present invention provides a process for obtaining a fatty acid product from a glyceride oil soapstock. The process includes the following steps: (a) An acidulated soapstock is formed by reacting the glyceride oil soapstock with an aqueous mineral acid sol... | 06/09/1987 |
| 4464305 | Process for the recovery of fatty acids from discarded solid soap materials A process for the recovery of fatty acids from discarded solid soap material comprises the steps of: (a) stirring discarded solid soap material into a melt of one or more fatty acids at the melting temperature of the discarded soap which is usually from a... | 08/07/1984 |
| 4415541 | Method of recovering nickel from a spent fat hardening catalyst The invention relates to a method of recovering nickel from a spent fat hardening catalyst which consists of finely divided nickel metal on a carrier for example of infusorial earth and/or synthetic material and suspended in fat. The fat is saponified by ... | 11/15/1983 |
| 4361517 | Continuous soap stock splitting Automatically controlled process for the neutralization of soap solutions in which an acid is mixed with the soap solution just before or as said soap solution enters a reaction zone, in which turbulent flow conditions are maintained, the relative amounts... | 11/30/1982 |
| 4136217 | Removing oil emulsion from articles prior to coating articles and recovering oil from the emulsion In a continuous process wherein corrosion resistant and paint adherent coatings are formed on metallic articles and wherein prior to the formation of said coatings, the articles are first subjected to a pre-cleaning stage in which oil emulsion is removed ... | 01/23/1979 |
| 4061568 | Method for recovering and stabilizing fat and fatty substances as well as proteins and proteinous substances from process water The invention according to the present patent application relates to a method for recovering substances from fat processing industry such as fat refining plants, margarine industry and other food industries, whereby a water purifying effect is achieved as... | 12/06/1977 |
| 3974069 | Process for the dehydration of fatty sludge and the recovery of chemicals A process is disclosed for concentrating a fatty sludge precipitated from a fatty and proteinaceous aqueous emulsion by successive addition of hydrolyzable metals salts and alkaline earth salts thereto and subsequently separated from the aqueous portion o... | 08/10/1976 |
| 3931258 | Recovery of sugar cane wax This invention relates to a process for recovering wax from filter cake derived from the treatment of sugar cane in the production of cane sugar. The process involves taking up the wax in water by forming an aqueous slurry of the filter cake, adding a sur... | 01/06/1976 |