patent wo2012088120a1

CN106319251B patents.google

The invention discloses a kind of method that rehenic acid ammonium is extracted in concentrate from rhenium, including hot water pulp, leachings of potassium permanganate atmospheric pressure oxidation, sodium hydroxide hydrolysis, dilute sulfuric acid acidifying, N235 extractions and ammoniacal liquor is stripped and the processing step such as crystallisation by cooling;The method of the

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Millions of Patents USPTO

this auction is for an early vintage pencil sharpener whose patent no. is 2540320. the pencil sharpener''s label has been removed, so i do know the name or manufacturer. it is made of metal (quite heavy, hense the postage) and the bottom measures 3.25" in diameter.

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US2876065A Process for producing pure Google Patents

US2876065A US500395A US50039555A US2876065A US 2876065 A US2876065 A US 2876065A US 500395 A US500395 A US 500395A US 50039555 A US50039555 A US 50039555A US 2876065 A US2876065 A US 2876065A Authority US United States Prior art keywords rhenium solution perrhenate sulfide process Prior art date 19550411 Legal status (The legal status is an assumption and is not a

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WO 2016/154473 A1 Method For The Treatment Of

Sep 29, 2016 · The Lens serves almost all the patents and scholarly work in the world as a free, open and secure digital public good, with user privacy a paramount focus.

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WO2016133464A1 Regenerable draw solute for osmotically

Disclosed herein is a use of an inorganic salt to form and regenerate a draw solute for forward osmosis, wherein the inorganic salt is selected from one or more of the group selected from sodium sulfate, calcium lactate, disodium phosphate, tetrasodium pyrophosphate, and hydrates thereof. Also disclosed herein is a method of forward osmosis using said inorganic salt.

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US3915690A patents.google

US3915690A US42967973A US3915690A US 3915690 A US3915690 A US 3915690A US 42967973 A US42967973 A US 42967973A US 3915690 A US3915690 A US 3915690A Authority US

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WO2012088120A1 Rhenium recovery Google Patents

Method for rhenium recovery from copper solvent extraction solution. It is determined whether the copper solvent extraction solution contains trace amounts of rhenium. If so, a feedstock from the copper solvent extraction solution is provided, which is then filtered, producing filtered feedstock. Trace amounts of rhenium are absorbed from the filtered feedstock using a supply of ion exchange

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Expert Search SumoBrain

Collections All US Patents US Patent Appliions EP Documents Abstracts of Japan WIPO (PCT) Date Range All Years Last 20 Years (Entering date parameters in the box will override the date range buttons)

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EPO T 0190/99 () of 6.3.2001 European Patent Office

The patent must be construed by a mind willing to understand not a mind desirous of misunderstanding. Thus the board finds that the appellant''s objections to these three amendments under Article 123(3) EPC are unfounded. 2.5. The other differences between claim 1 as granted and claim 1 of the main request will now be outlined.

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UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE

Appeal 20084366 Appliion 10/014,192 (2) Is the claim limited so as to not encompass substantially all practical appliions of the mathematical algorithm5 either "in all fields" of use of the algorithm or even in "only one field?"6 If the machine (or article of manufacture) claim fails either

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EPO European patent appliions

European patent appliions per country of origin. Nearly half (49%) of all European patent appliions in 2014 came from the EPO member states, with European firms filing 2.2% more European patent appliions than in the previous year. The leading countries of origin overall were the US, Germany, Japan, France and the Netherlands.

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US20150332395A1 patents.google

The present disclosure is directed to security settlement in financial markets and cryptographic currencies. Particular portions of the present disclosure are directed to a cryptographic currency protocol and to a cryptographic currency that includes a positional item. The cryptographic currency protocol supports a virtual wallet that, in various embodiments, is a security and cash account for

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US20010001650A1 patents.google

US20010001650A1 US09/265,279 US26527999A US2001001650A1 US 20010001650 A1 US20010001650 A1 US 20010001650A1 US 26527999 A US26527999 A US 26527999A US 2001001650 A1 US2001001650 A

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US2876065A Google Patents

US2876065A US500395A US50039555A US2876065A US 2876065 A US2876065 A US 2876065A US 500395 A US500395 A US 500395A US 50039555 A US50039555 A US 50039555A US 2876065 A US2876065 A US 2876065A Authority US United States Prior art keywords rhenium solution perrhenate sulfide process Prior art date 19550411 Legal status (The legal status is an assumption and is not a

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patent number eBay

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