baber/WOPTO huggingface dataset:
Patent TW-202302544-A (TW)
Inventor: KOEHN ARNIM
IPC: A01N43/82
Filed: 2022-03-10
Abstract: 描述了通式(I)之掌性-N-(1,3,4-㗁二唑-2-基)苯基羧醯胺及其作為除草劑的用途。
         在本式(I)中，X、Z、R及R
         ´ 為例如烷基、環烷基及鹵素等基團。
Patent TW-202310190-A (TW)
Inventor: YIM Jeong-hyuk
IPC: H01L21/822
Filed: 2022-03-24
Abstract: 本揭露提供包含具有不同臨限電壓的電晶體堆疊的積體電路裝置及其形成方法。積體電路裝置可包含兩個電晶體堆疊，兩個電晶體堆疊包含具有不同臨限電壓的下部電晶體及具有不同臨限電壓的上部電晶體。下部電晶體的閘極絕緣體可具有不同偶極元素或偶極元素的不同面密度，且上部電晶體可具有不同閘極電極結構。
Patent TW-202245010-A (TW)
Inventor: Shen ze-qing
IPC: H01L21/205
Filed: 2022-04-18
Abstract: 本發明的實施例大體上關於製造電子裝置，諸如記憶體裝置。在一或多個實施例中，形成裝置的方法包括在基板上形成膜堆疊，其中膜堆疊含有複數個氧化物層與氮化物層的交替層且具有堆疊厚度，及蝕刻膜堆疊至第一深度以在複數個結構之間形成複數個開口。此方法包括在結構的側壁與底部上沉積含有非晶矽的蝕刻保護襯墊，至少從開口的底部移除蝕刻保護襯墊，藉由蝕刻開口中的膜堆疊而形成複數個孔洞，以進一步將開口的每個底部延伸至孔洞的第二深度，及從側壁移除蝕刻保護襯墊。
Patent TW-202303522-A (TW)
Title: Processing image data using multi-point depth sensing system information
Inventor: FENG WEN-CHUN
IPC: G06T7/50
Filed: 2022-04-29
Abstract: Systems and techniques are provided for processing one or more images. For instance, aspects include a process that can include determining a first region of interest corresponding to a first object depicted in an image obtained using at least one camera. The first region of interest is associated with at least one element of a multi-point grid associated with a multi¬point depth sensing system. The process can include determining a first extended region of interest for the first object. The first extended region of interest is associated with a plurality of elements including the at least one element and one or more additional elements of the multi¬point grid. The process can further include, based on the plurality of elements associated with the first extended region of interest, determining representative depth information representing a first distance between the at least one camera and the first object depicted in the image.
Patent TW-202310546-A (TW)
Inventor: KASINA BINDU MADHAVI
IPC: H02M3/155
Filed: 2022-05-03
Abstract: 如本文中所描述的系統及方法可以採取多種形式。在實例中，電路包含第一降壓模組及第二降壓模組。第一降壓模組具有作為輸入的供應電壓及第一參考電壓及作為輸出的中間降壓電壓，中間降壓電壓電耦接至第一降壓模組的反饋輸入。第二降壓模組包含具有作為輸入的中間降壓電壓及第二參考電壓及作為輸出的目標電壓的低壓差穩壓器。
Patent TW-202308662-A (TW)
Inventor: GRIM TRAVIS
IPC: A61K31/713
Filed: 2022-05-11
Abstract: 本文中提供寡核苷酸結合物，其抑制或降低在該中樞神經系統之該等神經元中目標基因之表現。亦提供包括彼等之組成物及其用途，特定而言關於治療與該CNS中神經元目標基因之表現相關之疾病、病症、及/或病況之用途。
Patent TW-202306788-A (TW)
Title: Vehicle interior component having high surface energy bonding interface and methods of forming same
Inventor: LIN JEN-CHIEH
IPC: B32B37/12
Filed: 2022-05-13
Abstract: Disclosed is a method of forming a vehicle interior component. In the method, a glass article is arranged on a forming surface of a forming surface. The glass article has a first major surface and a second major surface. The first major surface faces the forming surface, and the second major surface is opposite to the first major surface. The second major surface includes a region having a surface free energy of at least 35 mN/m. An adhesive is applied to the region of the second major surface of the glass article. The adhesive is contacted with a frame to attach the frame to the glass article.
Patent TW-202302757-A (TW)
Title: Camera module containing a polymer composition
Inventor: KIM YOUNG SHIN
IPC: C08L67/00
Filed: 2022-05-20
Abstract: A polymer composition comprising from about 50 wt.% to about 90 wt.% of a polymer matrix, from about 10 wt.% to about 40 wt.% of inorganic filler particles, and from about 0.1 wt.% to about 10 wt.% of an impact modifier is provided. The polymer matrix includes a liquid crystalline polymer containing one or more repeating units derived from a hydroxycarboxylic acid, wherein the hydroxycarboxylic acid repeating units constitute about 50 mol.% or more of the polymer, and further wherein the liquid crystalline polymer containing repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol.% or more of the polymer. The polymer composition exhibits a tensile elongation of about 4.5% or more and a Charpy notched impact strength of about 10 kJ/m
         2 or more.
Patent TW-202313212-A (TW)
Title: Method for cleaning chamber or component, substrate processing method and substrate processing apparatus
Inventor: NAKANE YUTA
IPC: B08B3/00
Filed: 2022-06-28
Abstract: A method for cleaning a chamber of a substrate processing apparatus or a component that is arranged within the chamber according to one exemplary embodiment of the present invention comprises: (a) a step in which a second metal-containing substance is formed from a first metal-containing substance that adheres to the chamber or the component with use of a first processing gas that contains a fluorine-containing gas within the chamber; and (b) a step in which the second metal-containing substance is removed with use of a second processing gas that contains a precursor within the chamber.
Patent TW-202309519-A (TW)
Inventor: Strohmann Jessica Liu
IPC: G01N29/44
Filed: 2022-07-07
Abstract: 一種裝置可包括超音波感測器系統，該超音波感測器系統具有超音波收發器層、薄膜電晶體（TFT）層和頻率差分層。在一些示例中，頻率差分層可包括對應於超音波感測器系統的較低頻率區域的第一頻率差分層區域。第一頻率差分層區域可包括具有第一聲阻抗的第一材料。在一些此類示例中，頻率差分層可包括對應於超音波感測器系統的較高頻率區域的第二頻率差分層區域。第二頻率差分層區域可包括具有第二聲阻抗的第二材料。第一聲阻抗可以例如高於第二聲阻抗。
Patent TW-202244823-A (TW)
Title: Fund redemption system and method thereof performing fund redemption according to payment term
Inventor: HSUEH MEI-HUA
IPC: G06Q20/38
Filed: 2020-04-15
Abstract: A fund redemption system performing fund redemption according to payment term, comprises: a database, a server and a mobile device. The database stores a user information, wherein the user information includes a recurrent expenditure. The server is in communication connection with the database, the server is configured to output a first figure, wherein the first figure is associated with a contract content. The mobile device has a camera unit; the camera unit is configured to shoot the first figure to obtain an image of the first figure. The camera unit obtains a second figure based on the image, wherein the second figure is associated with the contract content. The mobile device overlaps the first image and the second image to present the contract content. The mobile device further obtains and outputs a confirmation command corresponding to the contract content. The server calculates a payment amount based on the recurrent expenditure after receiving the confirmation command from the mobile device, and performs a fund redemption procedure to redeem the payment amount. The server transfers the payment amount to a bank account corresponding to the recurrent expenditure after performing the fund redemption procedure.
Patent TW-202315701-A (TW)
Title: Processing device capable of efficiently performing the cutting processing of a workpiece and heat treatment such as quenching
Inventor: SUZUKI RYOSUKE
IPC: B23Q11/14
Filed: 2022-09-29
Abstract: An object of the present invention is to provide a processing device capable of efficiently performing the cutting processing of a workpiece and heat treatment such as quenching. The processing device includes: a support mechanism (10) to support the workpiece; a cutting mechanism (30) to cut the workpiece (W) supported by the supporting mechanism (10); and a heat treatment mechanism (50) to proceed with the heat treatment of the workpiece (W) supported by the mechanism (10). The heat treatment mechanism (50) has a coil part (51) for inductively heating the workpiece (W), and the coil part (51) can move relative to the workpiece (W) supported by the support mechanism (10).
Patent TW-202329148-A (TW)
Title: Ecc power consumption optimization in memories
Inventor: LAURENT CHRISTOPHE VINCENT ANTOINE
IPC: G11C29/52
Filed: 2022-10-18
Abstract: The present disclosure relates to a memory device comprising an array including a plurality of memory cells and an operating unit, the operating unit comprising an encoding unit configured to store user data in a plurality of memory cells of the memory array and to store parity data associated with the user data in a number of parity cells of the memory array, the operating unit further comprising a decoding unit in turn comprising a syndrome generating unit configured to calculate an ECC syndrome from the stored user data and parity data, wherein the syndrome generating unit comprises a plurality of circuit portions, each circuit portion being configured to calculate a respective syndrome portion of the ECC syndrome. The operating unit is configured to activate a first circuit portion of the syndrome generating unit for calculating a first syndrome portion, and, based on the calculated first syndrome portion, decide whether to activate or not to activate a second circuit portion for the calculation of a second syndrome portion. Related methods and systems are also herein disclosed.
Patent TW-202328198-A (TW)
Title: A fusion polypeptide and application thereof
Inventor: HE NAN-HAI
IPC: C07K16/28
Filed: 2022-10-20
Abstract: This disclosure relates to a fusion polypeptide and application thereof, specifically, the fusion polypeptide disclosed in this disclosure could block PD-1/PD-L1 signaling and/or have the function of activating immune response. The disclosure also provides the application of the polypeptide.
Patent TW-202319832-A (TW)
Title: Blank mask, photomask using the same and method of manufacturing semiconductor device
Inventor: SON SUNG-HOON
IPC: G03F1/26
Filed: 2022-10-27
Abstract: A blank mask according to one embodiment of the present application comprises a transparent substrate and a multilayer light shielding film disposed on the transparent substrate. The multilayer light shielding film comprises a transition metal, and at least any one between oxygen and nitrogen. The multilayer light shielding film comprises a first light shielding film and a second light shielding film disposed on the first light shielding film. The multilayer light shielding film has an EA (Edge side Area damaged) value of 2 nm
         2 or less according to Equation 1 below.
         In the Equation 1, the BC value is a sectional area of the multilayer light shielding film measured before cleaning is performed. The AC value is a sectional area of the multilayer light shielding film measured after the blank mask is soaked in SC-1 (Standard Cleaning-1) solution for 800 seconds and rinsed by ozone water.
Patent TW-202324402-A (TW)
Title: Magnetic memory device
Inventor: YOSHIKAWA MASATOSHI
IPC: G11C11/16
Filed: 2022-11-23
Abstract: Embodiments provide a magnetic memory device that improves memory cell retention characteristics. According to one embodiment, a magnetic memory device includes first, second, and third conductor layers, and a memory cell that is coupled to the first, second, and third conductor layers. The memory cell includes a fourth conductor layer and a magnetoresistance effect element. The fourth conductor layer includes first, second, and third portions coupled to the first, second, and third conductor layers, respectively. The third portion is between the first and second portions. The magnetoresistance effect element is coupled between a third conductor and the fourth conductor layer. The fourth conductor layer includes a magnetic layer and a non-magnetic layer that is between the magnetic layer and the magnetoresistance effect element. The magnetic layer has a first saturation magnetization during a standby state or a read state of the memory cell, and has a second saturation magnetization larger than the first saturation magnetization during a write state of the memory cell.
Patent TW-202323303-A (TW)
Inventor: DENGL STEFAN
IPC: C07K16/28
Filed: 2016-06-23
Abstract: 本文報告一種特異性結合至人類轉鐵蛋白受體及食蟹猴轉鐵蛋白受體之抗轉鐵蛋白受體抗體，其包含i)衍生自SEQ ID NO: 01之重鏈可變域之人類化重鏈可變域，及ii)衍生自SEQ ID NO: 26之輕鏈可變域之人類化輕鏈可變域，其中該抗體針對人類轉鐵蛋白受體之解離速率等於或小於(即，最多)抗轉鐵蛋白受體抗體128.1針對食蟹猴轉鐵蛋白受體之解離速率，藉此該等解離速率係藉由表面電漿共振測定，且藉此該抗轉鐵蛋白受體抗體128.1具有SEQ ID NO: 64之重鏈可變域及SEQ ID NO: 65之輕鏈可變域。
Patent TW-202335140-A (TW)
Inventor: SCHUELE PAUL JOHN
IPC: H01L21/67
Filed: 2021-11-11
Abstract: 一種微型LED巨量轉移壓印系統，包括具有捕集位置陣列的印章基板，每個捕集位置設有柱狀凹槽，以臨時固定從微型LED底表面延伸的龍骨。對於表面貼裝微型LED，龍骨不導電。對於垂直微型LED，龍骨是導電的第二電極。壓印系統還包括具有阱陣列的流體組裝載體襯底，阱陣列具有分隔相鄰阱的間距，該間距與分隔捕獲位置的間距匹配。顯示基板包括與捕獲位置間距相同的微型LED連接墊陣列。印章基板的頂表面壓靠在顯示基板上，每個捕獲位置與相應的微型LED位置連接，然後微型LED被轉移。還提供了用於與具有龍骨或軸向微型LED一起使用的流體組裝印章基板。
Patent UA-36861-A (UA)
Title: Армуюча волокнисто-цементна суміш для виготовлення азбестоцементних виробів
Filed: 2000-02-17
Abstract: Винахід відноситься до промисловості будівельних матеріалів, зокрема до складу суміші, котру можна застосувати для виготовлення азбестоцементних виробів. Суміш, що містить портландцемент, азбест і воду, при цьому додатково містить базальтове волокно при наступному співвідношенні компонентів, ваг.%: Портландцемент 80,0 - 88,0 Азбест 11,0 – 13,0 Базальтове волокно 0,·7 - 1,4 Технологічна вода - решта. Армуюча волокнисто-цементна суміш забезпечує розширення асортименте азбестоцементних матеріалів для виготовлення азбестоцементних виробів.
Patent UA-38150-A (UA)
Title: Спосіб отримання згущеного молочного продукту з цукром
Filed: 2000-06-02
Abstract: Винахід відноситься до молочної промисловості та може бути використаний при виробництві згущених молочних продуктів з цукром. В основу, винаходу, встановлена задача удосконалення способу отримання згущеного молочного продукту з цукром, у якому, внаслідок попередього розчину, рослинної олії у воді та/або у молочній суміші у інтервалі 40 - 75оС у два етапи, при послідовному нагріві спочатку води та/або молочної суміші, подальшому нагріві їх суміші з рослинною олією при безперервному перемішуванні, емульгуванні одержаної молочно-олійної суміші при тиску 10 - 12 Мпа та більш високій температура ніж при змішуванні, забезпечується спочатку, зниження в'язкості олійної складаючої суміші та, як слідство, утворення при послідуючому емульгуванні ультрадисперсних часток олії, які рівномірно розподілені у об'ємів спочатку у воді або молочної суміші, а потім у об’ємі підготовленої до переробки сировини, та за рахунок цього одержують однорідну, не схилу до розшарування масу, яка має високі споживчі властивості. Продукт, одержаний за пропонуємим способом, може зберігатися при температурі повітря від 0 до 10оС біля 12 місяців. При температурі до 20оС може зберігатися до 8 місяців.
Patent UA-39242-A (UA)
Title: Спосіб вилучення германію з розчинів сорбцією
Filed: 2000-07-25
Abstract: Винахід відноситься до області добування рідкісних металів і може бути використаний для одержання концентратів германію. З метою зменшення числа стадій процесу мри істотному зниженні часу контакту, значним покращенням технологічних показників процесу спосіб вилучення германію з розчинів сорбцією виконують за допомогою комплексоутворюючого реагенту, в якості якого використовують тверді гумінові кислоти, що виділені з бурого вугілля, у відношенні гумінова кислота б германій - 100 1 /м.част./. І табл.
Patent UA-40195-A (UA)
Title: Method of seismic prospecting
Inventor: Mehed' Hryhorii Vlasovych
Filed: 2000-09-26
Abstract: The proposed method of the seismic prospecting includes excitation of oscillations by a pulse power unit, a three-component digital recording of seismic signals and a selective data processing. Under the oscillator of vibrations it is required to place a device containing a horizontal plate and a quasivertical support structure deeped in a chap in the ground at the value of l≈2÷3 lп..., wherein lп... – depth of horse-hoeing intrinsic layer and which is rigidly connected with the horizontal plate at an angle close to 85°. Then it is required to perform simultaneously a narrow-beam emission of longitudinal and dihedral transversal waves close to each other by intensity, with a sequential change of the source location relative to the quasivertical support structure. Then determine dynamic characteristics of recorded conjugated seismograms and perform their amplitude-phase affixment. Subsequently implement algorithms of cooperative processing of materials at each physical point along the profile and by obtained data determine elastic properties of the media and make the prospecting of the geologic cross-section.
Patent UA-40401-A (UA)
Title: Кулачковий очисний вал коренезбиральної машини
Inventor: MALANCHYN ANATOLII MYKOLAIOVYCH
Filed: 2001-01-03
Abstract: Реферат Кулачковий очисний вал коренезбиральної машини містить послідовно встановлені на валу призматичні передавальні диски, між якими розташовані розпірні втулки. Призматичні передавальні диски виконані з плоскої основи, по периферії якої, з обох боків, встановлені еластичні пластини, з'єднані між собою за допомогою фіксуючих пластин. Причому периферійна поверхня еластичних пластин розташована на більшій відстані від осі вала, ніж периферійна поверхня плоскої основи.
Patent UA-43691-A (UA)
Title: Device for finISHING treatment of internal cylindrical surfaces using cooling mixture
Inventor: Borysov Dmytro Volodymyrovych
Filed: 2001-05-14
Abstract: Device for finishing, with the use of cooling mixture, treatment of internal cylindrical surfaces, containing shaft, abrasive disc, lateral lid and conduit for supply of cooling mixture, thus the abrasive disc is demountable and is equipped with a chuck, in the slots of which the plates with rollers are mounted and connected to the additional lateral lid, thus an additional lateral lid is sectional.
Patent UA-49784-A (UA)
Title: Computer-aided cash-system
Filed: 2002-06-26
Abstract: The proposed computer-aided cash-system contains a computer, a peripheral memory, a keyboard, and a printer. The peripheral memory is designed as a separate module that contains a memory access processor, a random-access memory, a memory for storing financial data, and a memory for storing programs, including the memory access program and the printer control program.
Patent DO-P2003000642-A (DO)
Title: Derivados de hidroxi tetrahidro-naftalenilurea
Inventor: YURA TAKESHI
IPC: A61P/
Filed: 2003-05-07
Abstract: Esta invencion se refiere a derivados de hidroxi-tetrahidro-naftalenil úrea de fórmula (I) y a sales de los mismos que son útiles como ingredientes activos de preparaciones farmaceuticas. Los derivados de tetrahidro-naftaleno de la presente invencion tienen una excelente actividad como antagonistas de VR1 y son útiles para la fabricación de medicamentos para la profilaxis y tratamiento de enfermedades asociadas con la actividad de VR1, en particular de la imperiosidad urinaria, vejiga superactiva, dolor crónico, dolor neuropático, dolor postoperatorio, dolor de artritis reumatoide, neuralgia, neuropatías, algesia, lesión de nervios, isquemia, neurodegeneración, apoplejía, incontinencia, trastornos inflamatorios tales como asma y COPD.
Patent DO-P2018000062-A (DO)
Title: Piridinona dicaboxamidas para uso como inhibidores de bromodominio
Inventor: STEPHEN JOHN ATKINSON
IPC: C07D401/12
Filed: 2018-03-02
Abstract: La presente invención se refiere a compuestos de fórmula (I) y sales de los mismos, a composiciones farmacéuticas que contienen tales compuestos y a su uso en terapia
Patent EC-SP10010606-A (EC)
Title: Derivados de quinuclidina como antagonistas de receptores muscarinicos m3
Inventor: BULL RICHARD JAMES
IPC: A61K31/439
Filed: 2010-11-12
Abstract: La invencion proporciona los compuestos nombrados de formula (I), en la que R4 es una quinuclidina N-sustituida (I), composiciones farmaceuticas que los contienen y un proceso para preparar las composiciones farmaceuticas. Tambien se divulga su uso en terapia para el tratamiento de afecciones mediadas por receptores muscarinicos M3, tales como la enfermedad pulmonar obstructiva cronica.
Patent EC-SP12011589-A (EC)
Title: Composiciones pesticidas que incluyen coadyuvantes poliméricos
Inventor: JOHN LARRY SANDERS
IPC: A01P7/00
Filed: 2012-01-11
Abstract: Se proporcionan composiciones pesticidas de efectividad mejorada, incluyendo un pesticida (por ejemplo un insecticida o herbicida) junto con un copolímero coadyuvante o aditivo seleccionado del grupo que consiste de copolímeros de sal o ácido que contienen cantidades individuales de porciones de maleico y de itacónico. Las composiciones de la invención proporcionan incrementos de múltiples veces en efectividad, cuando se comparan con una cantidad igual del pesticida en la ausencia del copolímero.
Patent EC-SP12012322-A (EC)
Title: Derivados de 3,4-dihidropirrolo[1,2-a]pirazina-2,8(1h)-dicarboxamida su preparación y su uso terapéutico
Inventor: MARGUET FRANK
IPC: C07D487/04
Filed: 2012-12-03
Abstract: Compuestos que responden a la fórmula general (I) en la que R2 representa un grupo alquilo-C1-10, cicloalquilo-C3-10, cicloalquil-C3-7-alquilo-C1-6, alquilo-C1-6-cicloalquilo-C3-7, cicloalquil-C3-7-cicloalquilo-C3-7, alquiltio-C1-6-alquilo-C-1-10, alcoxi-C1-6-alquilo-C1-10, hidroxi-alquilo-C1-10, hidroxi-alquil-C1-6-cicloalquil-C3-7-alquilo-C1-6, hidroxi-cicloalquilo-C3-10, fluoroalquilo-C1-10, fluorocicloalquilo-C3-10; un grupo heterocíclico sustituido opcionalmente; un grupo alquilo-C1-10 sustituido con un grupo heterocíclico sustituido opcionalmente; X6 representa un grupo elegido entre el átomo de hidrógeno, de flúor, de cloro o de bromo o un grupo alquilo-C1-6, cicloalquilo-C3 7, cicloalquil-C3-7-alquilo-C1-6, fluoroalquilo-C1-6 o ciano; y R7 representa un grupo arilo tal como fenilo o naftilo, sustituidos opcionalmente con uno o varios sustituyentes en el estado de base o de sal de adición a un ácido. Uso terapéutico.
Patent GB-189312440-A (GB)
Title: Improvements in Obtaining Combustible Gases, Ammonia, and Tar from Fuel, and in Apparatus therefor.
Inventor: MOND LUDWIG
Filed: 1893-06-24
Granted: 1894-06-09
Abstract: 12,440. Mond, L. June 24. Drawings to Specification. Superheaters, steam.-Relates to improved means for obtaining from fuel combustible gases, ammonia, and tar, according to the processes described in Specifications No. 3923, A.D. 1883 and No. 8973, A.D. 1885, [both in Abridgment Class Gas manufacture]. The mixture of air and steam supplied to the grate of the gas producer is raised to a temperature of not less than 150‹ C., preferably by being passed through the annular jackets of the gas-escape pipes and through the hollow casing of the producer.
Patent GB-189704322-A (GB)
Title: Improvements in or applicable to Water Gauges for Steam Boilers or other purposes.
Inventor: THOMAS JOHN
Filed: 1897-02-17
Granted: 1898-03-16
Abstract: 4322. Thomas, J. Feb. 17. Gauge-glass fittings. - Relates t o improvements on the invention described in Specification No. 29,091, A.D. 1896. From each branch piece projects a spring- pressed hollow rod D having an enlargement C to receive the end of the glass B, which is made steam and water tight by packing G resting in the end of a slotted metal guard N. The rod D passes out through a stuffing- box F, and may have a second packing-ring d held down by a light spring e. To remove a glass, the rod D is pushed inwards by a lever J indicated in dotted lines, or by a lever K and link M, as shown in Fig. 2. If desired, the piston-rod end C may be secured to the guard N by a nut P as shown in Fig. 2. To prevent water striking the glass in case of fire &c., it may be protected by a shield W of horn, celluloid, or other transparent material. When each branch piece is made in two sections they are united, as shown in Fig. 3. To one portion Q is screwed a flanged collar R carrying a nut T which is screwed to the other part.
Patent GB-189709072-A (GB)
Title: An Improved Cement or Concrete.
Inventor: WILSON DAVID
Filed: 1897-04-09
Granted: 1898-02-26
Abstract: 9072. Wilson, D. April 9. Cements ; concretes. - Portland cement and crushed or powdered slate are mixed to form cement or concrete for general purposes, or for casting into slabs &c.