baber/WOPTO huggingface dataset:
Patent TW-I777809-B (TW)
Title: 使用無擴展器及無閉孔器之導入器的內視鏡介入方法、以及醫療裝置
Inventor: LIN SHENG CHI
IPC: A61B1/01
Filed: 2021-10-08
Granted: 2022-09-11
Abstract: 本發明提供一種醫療裝置，配置以使用無擴展器及無閉孔器的同時藉由導入器的遠端的工作提供視覺化的管控。
Patent TW-I782763-B (TW)
Title: Trigger-based transmission method and associated apparatus
Inventor: LIU JIANHAN
IPC: H04W52/04
Filed: 2021-10-22
Granted: 2022-11-01
Abstract: Various examples pertaining to efficient trigger-based （TB） multi-user （MU） uplink （UL） transmissions in wireless local area networks （WLANs） are described. A stations （STA） receives a trigger frame from an access point （AP）, with the trigger frame assigning one or more resource units （RUs） corresponding to one or more subchannels of a plurality of subchannels. The STA then performs a transmission using the assigned one or more RUs responsive to receiving the trigger frame. In an event that at least one subchannel of the plurality of subchannels is detected as being busy, the one or more subchannels may include a subset （e.g., some but not all） of the plurality of subchannels.
Patent TW-I810743-B (TW)
Inventor: VARTIAINEN ISMO
IPC: B29D11/00
Filed: 2021-12-10
Granted: 2023-08-01
Abstract: A manufacturing method of a master template of a grating of a diffractive optic element. A layer of material is deposited on a substrate of the master template through perforations of a plate, cross sectional areas of the perforations depending on locations of the perforations in the plate, and the plate and the substrate being spaced at a non-zero distance from each other. Height of the at least one layer on the substrate is caused to vary with variation of the areas of the perforations. Raised formations are formed on the substrate by removing the at least one layer from areas, which result in lowered formations between the raised formations. A fill factor and height of the raised formations are made to be proportional with each other while the raised and lowered formations have a relation with grooves and ridges of the grating, the relation depending on the proportionality.
Patent TW-I803103-B (TW)
Inventor: Yu ting-wei
IPC: G01R31/26
Filed: 2021-12-16
Granted: 2023-05-21
Abstract: 一種測試方法包括裝載具有晶粒的晶圓至探測機中，其中晶粒具有第一類型晶粒及不同於第一類型晶粒的第二類型晶粒。測試方法還包括使晶圓與探測機的探測卡對位於第一位置、在晶圓與探測卡對位於第一位置之後使探測卡的探針接觸在第一位置內的第一類型晶粒的測試墊和第二類型晶粒的測試墊、在第一位置根據第一條件量測第一類型晶粒並同時探針保持接觸第一位置內的第一類型晶粒的測試墊和第二類型晶粒的測試墊、以及在第一位置根據第二條件量測第二類型晶粒並同時探針保持接觸在第一位置內的第一類型晶粒的測試墊和第二類型晶粒的測試墊。
Patent TW-I796063-B (TW)
Inventor: CHUA TIEN-PING
IPC: G06K9/62
Filed: 2021-12-23
Granted: 2023-03-11
Abstract: 真人辨識方法包含依據第一影像、第二影像及特徵點程序，獲得多個第一特徵點及多個第二特徵點，第一特徵點包含二第一固定特徵點及至少一第一變動特徵點，第二特徵點包含二第二固定特徵點及至少一第二變動特徵點；依據第一固定特徵點及第二固定特徵點，獲得第一轉換函式；依據第一轉換函式及第一變動特徵點，獲得至少一核對特徵點；及依據核對特徵點及第二變動特徵點，判斷第二影像是否為假人影像。另一實施例之真人辨識方法包含依據第一特徵點及第二特徵點，獲得第四轉換函式；在第四轉換函式不符合預設限制時，判斷第二影像為真人影像。
Patent TW-I809664-B (TW)
Title: Circuit board with sensor controlled lights and end-to-end connection
Inventor: KUTER-ARNEBECK OTTOLEO
IPC: H05K1/18
Filed: 2022-01-18
Granted: 2023-07-21
Abstract: Printed circuit boards with sensor controlled illumination units and end-to-end connection capabilities. For example, a lighting element, sensor/detector, and computational control element are implemented on a printed circuit board. The printed circuit board also includes end-to-end connection terminals that allow multiple printed circuit boards to be operably coupled together in an end-to-end manner. This provides a scalable system that can be modularized to a base unit for installation in various packages, orientations, or environments.
Patent TW-I816450-B (TW)
Title: 多工位作業點膠機及其作業方法
Inventor: Qu dong-sheng
IPC: B05C11/00
Filed: 2022-06-27
Granted: 2023-09-21
Abstract: 一種多工位作業點膠機，包括：至少二個輸送組件，每個輸送組件均具有作業區；作業機構，能夠活動至任一輸送組件的作業區，並對擺放在作業區的加工件執行至少二次重複性的作業，所述二次重複性的作業之間保持相隔預設的作業等待時間；其中，所述作業機構在其中一個輸送組件的作業區對擺放在所述作業區的加工件執行一次作業且處於將要執行下一次作業的作業等待時間時，作業機構活動至又一輸送組件的又一作業區，並對擺放在又一作業區的又一加工件執行作業。本發明還提供一種多工位作業點膠機的作業方法。
Patent TW-I811081-B (TW)
Inventor: CHIEN CHEN
IPC: C21D8/00
Filed: 2022-08-26
Granted: 2023-08-01
Abstract: A manganese-boron steel and a method for manufacturing the same, and the manganese-boron steel includes 0.1 wt% to 0.6 wt% carbon, 0.1 wt% to 0.5 wt% silicon, 0.1 wt% to 0.5 wt% chromium, 0.6 wt% to 3.0 wt% manganese, phosphorus with an amount that is not greater than 0.03 wt%, sulfur with an amount that is not greater than 0.005 wt%, 0.01 wt% to 0.07 wt% aluminum, 0.1 wt% to 0.5 wt% titanium, 0.001 wt% to 0.006 wt% boron, balanced amount of iron, and unavoidable impurities. The manganese-boron steel made by the manufacturing method has both high spheroidization rate and high strength.
Patent TW-I788274-B (TW)
Inventor: HUANG CHUN MU
IPC: G01N33/66
Filed: 2020-08-03
Granted: 2022-12-21
Abstract: 本發明提供一種量測方法以延長微型生物感測器的使用壽命，微型生物感測器用於量測待分析物所關聯的生理參數的生理訊號，且包括被化學試劑覆蓋的工作電極、包括銀及鹵化銀的對電極、及輔助電極，鹵化銀具有一初始量，方法包括下列步驟：施加量測電壓以驅動工作電極以量測生理訊號而獲得生理參數，且鹵化銀被消耗一消耗量；停止施加量測電壓；以及每當獲得一次生理參數後，施加回充電壓於對電極及輔助電極之間以驅動對電極，使鹵化銀被回充一回充量，其中每個回充量與初始量的和減去被消耗的每個消耗量之值被控制在初始量加減一特定值的範圍內。
Patent TW-I810123-B (TW)
Title: 螢光假餌之半導體光源照射模組
Inventor: Shen sheng-zhi
IPC: A01K85/01
Filed: 2022-12-01
Granted: 2023-07-21
Abstract: 一種螢光假餌之半導體光源照射模組，具有280～420 nm特定波長的半導體光源，在魷釣遠洋漁船周遭任一鄰近一捲繩機構的位置或在該捲繩機構之釣線滾輪內（如兩側轉盤或滾輪轉軸內）設計照明區域，讓螢光假餌通過此照明區域時能同時吸收足夠的光能量，以提高螢光假餌的吸光效率。藉此，本發明不僅可提供特定波長的光能量來提高螢光假餌的吸光效率，且因其指向性高、出光角小，更可降低紫外線對漁撈人員的皮膚及眼睛之傷害；在螢光假餌對於特定波長的光能量可比傳統的高強度氣體放電（High Intensity Discharge, HID）燈，更可有效吸收並迅速發出螢光現象之最佳光譜光源下，當螢光假餌落到海下時，可提供更明亮的引誘光能，以增強對任何魚種及魚群的誘集能力，未來可應用於魷釣遠洋漁船等相關漁法上，有效減少能量的損耗。
Patent ZA-200100101-B (ZA)
Title: Methods of exfoliation using N-acetyl glucosamine.
Inventor: MAMMONE THOMAS
IPC: A61K8/00
Filed: 2001-01-04
Abstract: The present invention relates to a method of exfoliating and moisturizing the skin comprising the steps of topically applying a cosmetic or pharmaceutical composition. The composition comprises an amino sugar, N-acetyl-D-glucosamine and related compounds.
Patent ZA-200109430-B (ZA)
Title: Coupling.
Inventor: BUNSCHOTEN GERRIT KLAAS
IPC: F16L37/36
Filed: 2001-11-15
Abstract: The invention pertains to a coupling for interconnecting two hollow bodies, comprising two interconnectable members, which are both provided a cylindrical wall, one of which fits into the other. The cylindrical wall of first member comprises a projection or a groove on its inner side, whereas the cylindrical wall of the second member is provided with a corresponding groove or projection, respectively, on its outer side. The said projection and/or the beginning of the groove is located at a distance from the end of the respective cylindrical wall, so that the members must be inserted into one another over a certain length before the projection arrives at the beginning of the groove, wherein the ratio of the tolerance, between the cylindrical wall of the first member and the cylindrical wall of the second member, and the said length is smaller than 0.1.
Patent ZA-200306792-B (ZA)
Title: Novel amides, preparation and therapeutic use as modulators of CCR-receptor activity.
Inventor: ERIKSSON TOMAS
IPC: A61P11/06
Filed: 2003-08-29
Abstract: The invention provides compounds of general formula (I), wherein R<SUP>1</SUP>, X, Y, n, R<SUP>2</SUP>, Z<SUP>1</SUP>, Z<SUP>2</SUP>, A<SUP>1</SUP>, A<SUP>2</SUP>, Q, R<SUP>3</SUP>, R<SUP>4</SUP>, R<SUP>5</SUP>, R<SUP>6</SUP>, R<SUP>7</SUP>, R<SUP>8</SUP>, t and R<SUP>16 </SUP>are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
Patent ZA-200704153-B (ZA)
Title: Pet door having removable decorative frames
Inventor: LOMAX FREDERICK K
IPC: A01K/
Filed: 2007-05-22
Abstract: A pet door having decorative and customizable aesthetic features. The pet door includes subframe assemblies that are connected to each other with fasteners that extend through the aperture defined by the door. Thus, the subframe assemblies are fixed to the door, but it is not necessary to drill or form holes in the door in order to install the pet door. The pet door can be adapted to fit doors of various sizes with a modular core frame. The core frame includes a plurality of core members, each of which has one or more core elements. The core members extend laterally between the first and second subframe assemblies and defining a passageway through the door. Decorative frames are releasably attached to the subframe assemblies and can be removed or replaced, whereas the subframe assemblies remain fixed to each other and the door. Decorative frames allow owners to customize pet doors to taste or to match interior and exterior decors. A security panel can be secured to one of the subframe assemblies to prevent animals and intruders from entering the residence through the pet door.
Patent ZA-202103913-B (ZA)
Title: Reversible bracket
Inventor: ROBERTS CLANCY P
Filed: 2021-06-07
Abstract: A bracket defines a channel having narrow and wide channel portions. The narrow channel portion is sized to receive a cross member and prevent rotation of the bracket about the cross member. The wide channel portion is sized to receive the cross member and permit rotation of the bracket about the cross member.
Patent ZA-202208352-B (ZA)
Title: Post consumer resin packaging
Inventor: LEE DEWSON
Filed: 2022-07-26
Abstract: The present invention relates to a sustainable article for packaging which could be made substantially free of virgin petroleum-based compounds; in particular it relates to new packaging made from coloured post-consumer resin (PCR) having a high NIR absorption. A need remains to create a circular economy for coloured and/or black plastic by bringing the waste coloured and black plastic into new packaging while using Near infrared (NIR) detectable pigment in the colourant masterbatch. It is therefore an object of the present invention to bring the coloured or black plastic waste into new packaging. It has be found that a sustainable packaging in consumer acceptable black using NIR detectable pigment can be obtained by using a multilayer post-consumer resin, comprising a thinner outer layer of post-consumer resin of natural plastic waste (N-PCR); and a thicker inner layer comprising at least 50% coloured plastic waste (J-PCR).
Patent GR-1004723-B (GR)
Title: Anti-theft car system energised by way of the handbrake or the brake pedal
Inventor: KALAITZAKIS STYLIANOS
IPC: B60R25/042
Filed: 2004-01-16
Abstract: he red LED light gets on when the disclosed herein system is in function. The red and green LED lights, which get simultaneously on upon insertion of the key into the car ignition, keep being lit even after removal of the key therefrom and off whenthe system is put in off position. The system is energised upon release of the hand brake. When the engine is set in operation, the motor remains out of function. For securing the vehicle, the hand brake should be lifted up and the anti-theft systemenergised. In case of forcing, at the hand break release the engine stops functioning and remains out of operation even when the hand break is lifted up again. For unblocking the system, the security switch should be set at the OFF position. The vehicle operates with the hand brake being lifted up. At any contact with the brake pedal, the fuel supply and, consequently, the engine operation are interrupted.
Patent MX-285323-B (MX)
IPC: A23K20/174
Filed: 2008-05-23
Abstract: The present invention relates to the use of 25-hydroxy-vitamin D3 to improve the general health status of female animals at least during gestation and/or lactation. The invention also relates to the use of 25-hydroxy-vitamin D3 in animal breeding. More particular, the invention relates to the use of 25-hydroxy-vitamin D3 for improving litter size and vitality of piglets in pig breeding and for providing better body frame and increasing gestation backfat gain, reducing lactation backfat loss and increasing lactation feed intake of sows and gilts.
Patent MX-346257-B (MX)
Title: Gum bases, chewing gums based thereupon, and methods for making the same.
Inventor: XIAOHU XIA
IPC: A23G4/06
Filed: 2010-11-22
Abstract: A gum base comprises microparticles containing at least one crosslinked polymer. It has been found that such gum bases exhibit desireable chewing properties similar to conventional gum bases. Cuds formed by chewing gum bases containing crosslinked polymer microparticles are easily removable from environmental surfaces such as concrete, fabrics and flooring materials.
Patent MX-348312-B (MX)
Title: Therapeutic dll4 binding proteins.
Inventor: CHUNG-MING HSIEH
IPC: A61K39/395
Filed: 2011-02-28
Abstract: DLL4 binding proteins are described herein, including antibodies, CDR-grafted antibodies, humanized antibodies, and DLL4 binding fragments thereof, proteins that bind DLL4 with high affinity, and DLL4 binding proteins that neutralize DLL4 and/or VEGF activity. The DLL4 binding proteins are useful for treating or preventing cancers and tumors and especially for treating or preventing tumor angiogenesis.
Patent MX-342859-B (MX)
Title: Tamarind seed polysaccharide for use in the treatment of inflammatory diseases.
Inventor: GIORI ANDREA
IPC: A61K31/715
Filed: 2011-05-23
Abstract: The present invention relates to the use as an anti-inflammatory of tamarind seed polysaccharide (TSP) and to anti-inflammatory compositions which contain it as active ingredient. Anti-inflammatory compositions containing TSP are particularly useful for topical administration in the treatment of inflammatory diseases of the skin and mucosa.
Patent MX-339733-B (MX)
Title: Reduced sucrose sugar coatings for cereals and methods of preparation.
Inventor: DANIEL R GREEN
IPC: A23L7/109
Filed: 2011-06-30
Abstract: Disclosed are improved sugar coatings for topically pre-sweetened food products that are sugar reduced whether in the form of a syrup or in the form of a dried coating. The syrup form is useful as an intermediate product in the preparation of pre-sweetened food products. In dry form, the present formulations can be a component part of a composite food product especially in the form of a topical coating or filling. The present invention is particularly suited for the preparation of R-T-E pre-sweetened cereals. The coating formulations comprise less than 70% sucrose, corn syrup and 1 - 20% non-hydrated integrated starch and preferably about 5 - 10% insoluble mineral salts each of particle size of about 50 microns.
Patent MX-361491-B (MX)
Title: Peptide having the ability to regenerate bone tissue and for binding to apatite.
Inventor: CHUNG CHONG-PYOUNG
IPC: A61L27/22
Filed: 2011-03-09
Abstract: The present invention relates to a peptide having the ability to regenerate bone tissue and for binding to apatite, and more particularly, to a peptide having the ability to regenerate bone tissue, and to a composition containing the peptide for regenerating bone tissue. The peptide has both bone-forming effects and the ability to bind to apatite, by means of binding an amino acid sequence having the ability to regenerate bone tissue to an amino acid sequence having the ability to bind to an apatite. The peptide specifically binds to the inorganic surface of the apatite, and is securely fixed to the apatite surface so as to maintain useful activity for a long period of time, while also exhibiting the effects of bone tissue regeneration. The peptide having the ability to regenerate bone tissue and for binding to apatite according to the present invention can exist in a state in which it is stably bound to an apatite surface such that it can be applied as a bone replacement material for dental or orthopedic applications, and can be applied to metal, natural polymers, and artificial polymers coated with apatite. The peptide can ultimately maximize bone tissue regeneration through the transfer, replication, and accelerated differentiation of cells related to the regeneration of bone tissue. Since the peptide can be maintained in a stable and active state when transplanted in vivo, it can be effectively used for developing technologies for bone tissue regeneration treatments.
Patent MX-367833-B (MX)
Title: Braking force control device for vehicle.
Inventor: KEIGO AJIRO
IPC: B60T8/00
Filed: 2011-09-30
Abstract: The present invention reduces the difference in braking target values to brake operation by the same pedal pressure at a low braking target value frequently used during usual running by a driver, and prevents a strange feeling of the brake operation given to the driver. A braking force control device for a vehicle is provided with a brake pedal (1), a motor booster (2), a master cylinder (3), a pedal pressure calculation unit (60), a pedal stroke sensor (18), a first target braking force calculation unit (65), a second target braking force calculation unit (66), a contribution degree set unit (63), and a target braking force calculation unit (67). The contribution degree set unit (63) so sets that the lower target braking force is estimated to be, the larger the contribution degree (1-ß) of first target braking force based on pedal pressure is than the contribution degree (ß) of second target braking force based on a pedal stroke. The target braking force calculation unit (67) calculates the first target braking force and the second target braking force in accordance with the contribution degrees (1-ß), (ß), and obtains final target braking force by adding the first target braking force and the second target braking force.
Patent MX-348354-B (MX)
Title: Electronic board for counting photons.
Inventor: SERGIO VERGARA LIMON
IPC: G01N21/00
Filed: 2013-05-07
Abstract: The present invention provides an electronic board applied to modules for counting individual photons. Said board is used for acquiring signals resulting from the detection of individual photons; the system counts the signals and coincidences between them, so as to determine, by the processing thereof, the type of source of the light beam that is being used.
Patent MX-348667-B (MX)
Title: Sampling assembly for a single packer.
Inventor: ALEXANDER F ZAZOVSKY
IPC: E21B23/00
Filed: 2011-12-20
Abstract: A sampling assembly of a single packer assembly may have more guard drains than sampling drains. The single packer assembly having the sampling assembly may be deployed in a wellbore formed in a subterranean formation, and the single packer assembly may be deployed on a wireline cable or another deployment or conveyance. The number and the area of the sampling drains, the number and the area of the guard drains, and the positions of the sampling drains and the guard drains may be designed so that the guard drains which are operational may provide a fluid intake rate exceeding a predetermined threshold if one of the guard drains is congested and/or blocked.
Patent MX-340321-B (MX)
Title: Damping roller.
Inventor: BOINDECKER ALOIS
IPC: B23D55/08
Filed: 2012-04-18
Abstract: The invention relates to a band saw device (1) comprising a base frame (2), at least two deflection wheels (3, 4) which are arranged at a distance from each other, drive means (5) which are in a driving engagement with at least one of the deflection wheels (3, 4) and a band saw blade (6) continuously circulating the deflection wheels (3, 4). The band saw blade (6) is frictionally engaged with at least one damping roller (7) in the region of one side of the saw arranged between both deflection rollers.
Patent MX-351295-B (MX)
Title: Vehicle collision energy absorbing member having high collision energy absorbing power, and method for manufacturing same.
Inventor: TAKESHI FUJITA
IPC: B21D53/88
Filed: 2012-04-23
Abstract: Provided is a vehicle collision energy absorbing member which has high collision energy absorbing power in an axial direction. The vehicle collision energy absorbing member is formed of a high-strength thin steel sheet having a TS of at least 980 MPa, and an N value and a limit bend radius (Rc) satisfying the following formula: Rc=1.31Ãln(n)+ 5.21. By using the high-strength thin steel sheet, the member may be buckled stably in the axial direction and crushed into a bellows shape during vehicular collision even when the TS is 980 MPa or higher. Preferably, the high-strength thin steel sheet has a weight percentage composition of C: 0.14%~0.30%, Si: 0.0.1~1.6%, Mn: 3.5~10%, N: 0.0060% or less, and Nb: 0.01~0.10%. The high-strength thin steel sheet includes in terms of volume fraction with respect to the entire structure: 30 to 70% of ferrite phase having an average particle diameter of 1.0 µm or less; and a second phase having at least 10% of a residual austenite phase, the average gap of the residual austenite phase being 1.5 µm or less.
Patent MX-351943-B (MX)
Title: Metalloenzyme inhibitor compounds.
Inventor: WILLIAM J HOEKSTRA
IPC: A01N43/34
Filed: 2012-06-19
Abstract: The instant invention describes compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.
Patent MX-352858-B (MX)
Title: Lubricator pump adjuster.
Inventor: LEE ALEXANDER
IPC: F16N13/10
Filed: 2012-06-29
Abstract: A lubricator pump adjuster for use with a lubricator pump having a piston housed in a pump body and a rocker connected to the piston. The lubricator pump adjuster comprises a mounting fitting attachable to the pump body and a housing disposed on the mounting fitting. An actuator is disposed in the housing and connectable to the rocker, whereby activation of the actuator causes the rocker to move, thereby adjusting the stroke of the piston. The actuator is a rotary actuator with an output shaft. The lubricator pump adjuster includes a cam faced member attached to the output shaft, and a plunger in contact with the cam faced member that is connectable to the rocker. The cam faced member may include a spiral-ramped surface.
Patent MX-370069-B (MX)
Title: Insertion mechanism for a drug delivery pump.
Inventor: O'CONNOR SEAN M
IPC: A61M5/142
Filed: 2012-08-30
Abstract: An insertion mechanism (200) for a drug pump (10) includes an insertion mechanism housing (202); a manifold guide (220); an insertion biasing member (210) initially held in an energized state; a retraction biasing member (216) and a hub (212) connected to a proximal end of a needle (214), wherein the retraction biasing member (216) is held initially in an energized state between the hub (212) and the manifold guide (220); and a manifold (240) having a septum (230) and a cannula (234), wherein the annular space between the septum (230) and the cannula (234) defines a manifold header (242). The needle (214) and cannula (234) are inserted into the body of a user by the insertion biasing member(s) (210), after which only the needle (214) is retracted. Retraction of the needle (214) may open a fluid pathway from the manifold header (242) to the body through the cannula (234). A drug delivery pump (10) includes an activation mechanism (12), a drive mechanism (100), a fluid pathway connection (300), and the insertion mechanism 200. Assembly and operation methods are provided.
Patent MX-343288-B (MX)
Title: Process for preparing quinoline derivatives.
Inventor: JO ANN WILSON
IPC: C07C233/59
Filed: 2012-10-22
Abstract: A process for preparing a compound of Formula I is disclosed, comprising the steps: wherein: R1 is halo; R2 is halo; R3 is (C1-C6)alkyl or (C1-C6)alkyl optionally substituted with heterocycloalkyl; R4 is (C1-C6)alkyl; and Q is CH orN; comprising: (a) contacting 1,1 -cyclopropane dicarboxylic acid with thionyl chloride in a polar aprotic solvent; (b) adding and a tertiary amine base to the mixture of step (a) to form a compound of Formula A; and (c) coupling a compound of Formula A with an amine of Formula B to form a compound of Formula I.
Patent MX-366549-B (MX)
Title: Method for the production of acrylic acid or its derivatives.
Inventor: DIMITRIS IOANNIS COLLIAS
IPC: A61L15/60
Filed: 2013-04-11
Abstract: Methods for catalytically dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed monophosphates.