baber/WOPTO huggingface dataset:
Patent KR-0131399-B1 (KR)
Title: Improvements relating to video signals
Inventor: WESTON MARTIN
IPC: H04N11/16
Filed: 1992-01-24
Granted: 1998-04-16
Abstract: PCT No. PCT/GB92/00146 Sec. 371 Date Nov. 16, 1992 Sec. 102(e) Date Nov. 16, 1992 PCT Filed Jan. 24, 1992 PCT Pub. No. WO92/13426 PCT Pub. Date Aug. 6, 1992.Cross talk between luminance and chrominance is eliminated in a Weston Clean PAL codec by replacing the band pass filter used in a conventional codec with a high pass filter (L) and introducing a compensating low pass filter (X) into the chrominance path, the filters being chosen such that L=4F'*(1-F') and X(f)=(F'(f):(1-F'(f)) where F'=F(2fsc-f) and L is a low pass (5.5 MHz) filter 248 applied before transmission in the PAL channel.
Patent KR-100260049-B1 (KR)
Title: Compositions and solutions of azo dyes
Inventor: BRIAN LAMBLE
IPC: D06P3/66
Filed: 1993-03-06
Granted: 2000-07-01
Abstract: A high strength aqueous solution comprising a first and second dye each of which, in the free acid form, is of Formula (1): <CHEM>  wherein:   R<1>   is NH2 or alkyl; W   is H, alkyl or alkoxy; X   is a labile atom or group; A   is <CHEM>   Y   is H or alkyl; Z   is an optionally substituted phenyl group; and n   has a value of 1 to 3;  provided that   (i) the groups defined by A in the first and second dye are different to one another; and (ii) the solution contains less than 5% by weight of inorganic compounds.   Also claimed are compositions and dyes of Formula (1).
Patent KR-960009350-B1 (KR)
Title: Rotary encoder
Inventor: CHOE KWEE-SUK
IPC: G01D5/36
Filed: 1993-03-29
Granted: 1996-07-18
Abstract: judging the input states of first and second interrupt to read out the rising and falling edges of A phase pulse and B phase pulse outputted from the encoder; reading the outputs of the A,B phases to judge that the B phase pulse varies, having the phase difference of 90 degrees, at every rising and falling edges of the A phase; and offsetting count error when the B phase pulse is in an abnormal operation.
Patent KR-950009682-B1 (KR)
Title: Two's complementer using parallel aokler
Inventor: CHANG HYUN-SHIK
IPC: H03M7/04
Filed: 1993-04-30
Granted: 1995-08-26
Abstract: The two's complementer consists of an increment signal generator(21) and conditional incrementers(2A,2B,2C,2D). The increment signal generator(21) generates an enable signal(inck) of the conditional incrementer to input an inverted bit data(/a[i:0 ), when the enable signal(EN) of two's complementer is '1'. The conditional incrementers(2A,2B,2C,2D) generate an output bit(ta[i:0 ) to increase '1' value to the bit data(/a[i"0 ) when the enable signal(inck) has a '1' value, and generate to invert the bit data(/a[i:0 ) into the output bit(ta[i:0 ) just as it is when the enable signal(inck) has a '0' value. The two's complementer has a simple construction and high operation rate.
Patent KR-100286089-B1 (KR)
Title: 이온주입장치
IPC: H01J37/09
Filed: 1993-05-03
Granted: 2001-05-02
Abstract: 금속오염을 발생시키지 않는 이온주입장치를 저코스트로 실현한다. 
     질량분석부를 구성하는 챔버(14)의 내벽에 실리콘판(25)을 덮은 구조로 함으로써, 이온빔에 의한 금속의 스퍼터를 방지하고, 웨이퍼의 금속오염을 방지한다. 그러므로, 웨이퍼에 형성되는 트랜지스터의 리크전류를 저감하는 것이 가능하게 된다.
Patent KR-100281477-B1 (KR)
IPC: A61K9/64
Filed: 1993-05-07
Granted: 2001-02-01
Abstract: Oral pharmaceutical compositions containing high content anthocyanosides, preferably higher than 80% w/w, suspended in fractionated coconut oil have higher bioavailability than water solutions or suspensions in other lipophilic carriers.
Patent KR-950013013-B1 (KR)
Inventor: TAG KOYENG-SIG
IPC: F04B39/00
Filed: 1993-04-29
Granted: 1995-10-24
Abstract: 내용 없음.
Patent KR-100288090-B1 (KR)
Title: 에어백장치
IPC: B60R21/16
Filed: 1993-05-31
Granted: 2001-05-02
Abstract: 에어백장치를 경량 또한 고강도로 하는 것을 목적으로 하며, 리테이너(12)를 합성수지제로 하고, 개구(24)의 주위에 살붙임 단달림부(20a)를 설치하고 에어백(14)의 단부를 그 단달림부(20a)에 대하여 인서어트 성형에 의하여 고착하므로써, 리테이너의 강도가 높고, 또한 경량이며, 에어백의 부착강도가 높고, 부착하기도 쉽게 된다.
Patent KR-100311556-B1 (KR)
Title: Hydroxamic acid derivative
Inventor: BROADHURST MICHAEL JOHN
IPC: C07C/
Filed: 1993-06-24
Granted: 2002-02-19
Abstract: PURPOSE: A hydroxamic acid derivative and its pharmaceutically acceptable salt and a drug containing the derivative or its salt are provided, to obtain a matrix metalloproteinase inhibitor useful for the control or prevention of degenerative joint diseases such as rheumatoid arthritis and osteoarthritis or for the treatment of invasive tumors, atherosclerosis or multiple sclerosis. CONSTITUTION: The hydroxamic acid derivative is represented by the formula I, wherein R1 is a linear or branched alkyl group of C2-C7; R2 is H, an alkyl group of C1-C6, -(CH2)n-phenyl or -(CH2)n-Het (wherein n is 1-4, and Het is phthalimido or 3-(C1-C6 alkyl)-2,5-dioxo-1-imidazolidinyl); R3 represents a specified group of a natural or artificial α -amino acid whose any functional group can be protected or not, and R3 is not H; R4 is a carboxyl, (C1-C6 alkoxy)carbonyl, carbamoyl or (C1-C6 alkyl)carbamoyl group; R5 is represents a specified group of a natural α-amino acid whose any functional group can be protected or not; R6 is H; or R4, R5 and R6 are independently H or an alkyl group of C1-C6.
Patent KR-960015926-B1 (KR)
Inventor: MOCHIDA TOORU
IPC: B23K20/00
Filed: 1993-07-28
Granted: 1996-11-23
Abstract: 내용없음.
Patent KR-0122856-B1 (KR)
Title: Pyridil methyl amines
Inventor: MINAMIDA ISAO
IPC: C07C229/34
Filed: 1993-07-31
Granted: 1997-11-13
Abstract: α-Unsaturated amines of the formula:wherein X¹ and X² are such that one is an electron-attracting group with the other being a hydrogen atom or an electron-attracting group; R¹ is a group attached through a nitrogen atom; R² is a hydrogen atom or a group attached through a carbon, nitrogen or oxygen atom; n is an integer equal to 0, 1 or 2; A is a heterocyclic group or a cyclic hydrocarbon group, and salts thereof and their agrochemical use as insecticidal and/or miticidal agents are described.
Patent KR-960006383-B1 (KR)
Title: Sram circuit
Inventor: KIM KYUNG-YOUL
IPC: G11C11/413
Filed: 1993-10-18
Granted: 1996-05-15
Abstract: a logic mixing part(1) which outputs data input by logic mixing according to column input enable(CIEB) signal; a data transmitting part(2) which provides and cuts the data output of the logic mixing part(1) to the next stage through bit lines(D)(DB); a memory cell(3) which stores the data inputted through the bit line of the data transmitting part(2) by writing(WRITE) the data; a bit line sensing part(4) which senses the transition state of data provided to the bit line of the data transmission part(2); a current limit part(5) which limits driving current by controlling the operation of the cell access transistor and the column transistor according to the sensing signal of the bit line sensing part(4). The circuit prevents unnecessary current flow by making driving current not flow and by stopping the drive of the column transistors(NM3)(NM4) and the cell access transistors(NM5)(NM6).
Patent KR-960012954-B1 (KR)
Inventor: JJUNODA GAJUYUKKI
IPC: H04W88/02
Filed: 1993-12-07
Granted: 1996-09-25
Abstract: 내용 없음
Patent KR-100258137-B1 (KR)
Inventor: SONG DEOK YEONG
IPC: H04L47/43
Filed: 1993-12-30
Granted: 2000-06-01
Abstract: PURPOSE: An apparatus and method are provided to extract virtual path and virtual channel identifiers in ATM at a high speed without increasing requirements of a call processing part. CONSTITUTION: A FIFO memory(210) stores unique values of the information responsive to a write control signal and reads out the values responsive to a read control signal. Latch members(211,212) connected with input/output terminals of the memory(210) latch the values responsive to clocks. A controller(200) connected with an interface part in the exchange generates the clocks and the read control signal responsive to call connection request from the interface part, transmits the information values read from the memory(210) to the interface part, generates the clocks and the write control signal responsive to a call release request, and applies the values used at the release-requested call.
Patent KR-0160645-B1 (KR)
Inventor: KIM TAE-EUNG
IPC: G11B20/10
Filed: 1993-12-30
Granted: 1999-01-15
Abstract: 본 발명은 디지털  브이시알의 에러정정 디코더에 관한 것으로, 재생 데이터를 입력하고 동기블럭을 서치하여 동기플래그와 클럭과 데이터를 출력하는 동기검출부와, 동기검출부의 출력을 입력하여 데이터플래그와 에러정정 플래그와 식별플래그와 클럭과 데이터를 출력하는 내부 디코더와, 라이트할 어드레스를 룩업데이블로 저장하고 있는 롬과, 록업테이블에서 구한 어드레스에 동기블럭 데이터를 저장하는 복수의 메모리와, 내부 디코더의 출력을 입력하여 에러정정 플래그와 식별데이터에 따라 롬을 억세스하여 라이트할 어드레스를 발생하고, 어드레스에 따라 일 메모리에 라이트하고, 타 메모리를 리드하여 복구된 데이터 플래그와 데이터와 클럭을 출력하는 제어부와, 제어부의 출력을 입력하여 동기블럭을 복구하여 디코딩하는 외부디코더를 구비하여 재생데이터에서 검출하지 못한 동기블럭을 복구하여 디코딩한다.
Patent KR-0128364-B1 (KR)
Title: Horinzontal control device of a washing machine
Inventor: SO JIN-WON
IPC: D06F37/24
Filed: 1993-12-31
Granted: 1998-04-06
Abstract: A leveling device for washers is disclosed for adjusting the horizontal level and preventing noise. The device has a leveling device (4) attached on the exterior frame (1) by the opening of a choke valve (44) fitted to an oil pipe (42) of the leveling device (4). When the floor is sloped, the oil reversely flows into the oil reservoir (41) and pushes a piston (45) in a cylinder (43) through the oil pipe (42). The base plate (46) fitted on the piston contacts the floor and elevates the exterior frame (1) of the washing machine as the piston actuates downwardly. Then the oil pressure of the cylinder (43) from the oil reservoir (41) equalizes to regulate the level. When the leveling is finished, the oil pipe (42) is shut off by closing the choke valve (44) to prevent oil reversing and pressure change.
Patent KR-100237147-B1 (KR)
Title: Method for production of a whey protein hydrolyzate
Inventor: NIELSEN PER MUNK
IPC: C12P21/06
Filed: 1992-05-27
Granted: 2000-01-15
Abstract: PCT No. PCT/DK92/00170 Sec. 371 Date Nov. 30, 1993 Sec. 102(e) Date Nov. 30, 1993 PCT Filed May 27, 1992 PCT Pub. No. WO92/21248 PCT Pub. Date Dec. 10, 1992A well tasting and organoleptically acceptable whey protein hydrolyzate is produced in high yield by a method using a combination of non-pH-stat hydrolysis and ultrafiltration. Preferably, the method is carried out by mixing a material containing at least 65% whey protein as dry matter and water to form a slurry containing a whey protein content of about 7-20%, heating the slurry to above 600 DEG  C., adjusting the pH of the slurry to about 8, hydrolyzing the slurry with at least two different proteases to a degree of hydrolysis of between 17 and 35% without adjusting the pH during hydrolysis to produce a hydrolyzed slurry, inactivating the proteases and separating the hydrolyzed slurry with an ultrafiltration unit having a cut-off value above 10,000 to form a permeate containing the whey protein hydrolyzate. One protease may be obtained from B. Licheniformis and the other from B. Subtilis. The hydrolyzed slurry or the permeate may be treated with activated carbon, and the permeate may be concentrated by nanofiltration and/or by evaporation.
Patent RO-123263-B1 (RO)
Title: Solar motor
Inventor: UNGUREANU CONSTANTIN
IPC: H02N6/00
Filed: 2002-10-04
Abstract: The invention relates to a low speed solar motor. According to the invention, the motor comprises a solar-optical position transducer which, in a first embodiment, consists of a plurality of photoelectronic modules, each of them comprising a short optical conduit (7) and a photodiode (6) coaxially placed and being provided therebetween with an interstice (k) wherein there moves a shuttering disk (8) fastened at the extremity of the shaft end of the solar motor. The solar motor carried out this way is used for driving the continuous sun-tracking systems by some specialized installations used for the conversion of the sun energy.
Patent RO-122250-B1 (RO)
Title: Hydroalcoholic extract for treating prostate affections
Inventor: MIRON GHIORGHI
IPC: A61K36/53
Filed: 2006-09-20
Abstract: The invention relates to a hydroalcoholic extract for the treatment of prostate affections, comprising 10...27% hydroalcoholic extract of Ocimum basilicum, 24...44% hydroalcoholic extract of Epilobii herba, 28...45% hydroalcoholic extract of Xanthii herba and 8...23% hydroalcoholic extract of coniferous resin, the percentage being expressed by weight.
Patent RO-126129-B1 (RO)
Title: Ecological process for water decomposition in electrostatic field
Inventor: AMZARESCU ADRIAN-GABRIEL
IPC: C25B1/02
Filed: 2010-04-14
Abstract: The invention relates to an installation and process for preparing hydrogen and oxygen and/or a fuel gas by forced pulse electrolysis. The claimed installation comprises a group of gas-generating resonant cells, made as capacitors with water as dielectric, the cells being connected with a high voltage pulse transformer connected, in its turn, with a unit shaping and amplifying the pulse train to be applied to the resonant cells in order to generate gas, the generated gas being collected in a collecting tube, and the flow rate of the gas being monitored by means of a monitoring unit comprising a gas volumemeter, the thus described entire assembly being controlled by a central unit provided with a microprocessor, wherein pre-established pulse trains are generated, said pulse trains being imposed by means of a smart card connected with a central unit, and, depending on the situation, they are corrected on the basis of a feedback signal coming from the monitoring unit, the electric energy necessary to functioning being ensured by a supply source which is also connected with an emergency system which controls the cutting off of the energy supply in certain cases. The central unit also comprises a driver for an LCD display on which there may be visualized, in real time, the functioning parameters. The claimed process consists in treating water by forced pulse electrolysis inside a resonant cell, consisting of a capacitor with water as dielectric, connected to an L-C type electric circuit, on the capacitor armatures a high voltage pulse train being applied concomitantly with the application of a breakdown voltage of up to 1 kV on one of the armatures which has as an effect the breaking of a covalent bond within the water molecule and the release of hydrogen, oxygen and free radicals, and also other chemical elements, depending on the type of treated water.
Patent RO-127018-B1 (RO)
Title: Process for preparing a fuel for diesel-type engines
Inventor: VARATICEANU CERASEL
IPC: C10L1/02
Filed: 2010-07-12
Abstract: The invention relates to a process for preparing biofuel for Diesel-type engines. According to the invention, the process consists of the transesterification of soy oil with 14...17% methyl alcohol as related to the volume of oil, and sodium hydroxide dissolved in ethyl alcohol, at a temperature of 58...62°C, for 55...65 min, followed by the separation of raw glycerine and alkaline water, next the resulting product is dried and filtered, to result purified biodiesel fuel.
Patent RO-126016-B1 (RO)
Title: Water energizing process and installation
Inventor: VASILESCU PETRE
IPC: C02F1/00
Filed: 2010-09-03
Abstract: The invention relates to a process and an installation for energizing drinking water or water to be employed in plant irrigation, by using the pyramid effect. According to the invention, the process consists in circulating water through a conduit (4) from an upper apex (a) of a pyramid assembly (3) oriented with one edge to the North, following the vertical axis of the pyramid assembly (3) and being discharged through the center of the base (b), the water passing through the centroid of the pyramid assembly (3) which is also its energy center, the conduit (4) being provided with a sphere-shaped cavity (c) whose center corresponds to the energy center. The claimed installation comprises a water circulation conduit (4) where water enters through an apex (a) of a pyramid assembly (3) having the shape of a hollow regular tetrahedron with the four external surfaces curved outwards so that every point of a surface is equally spaced apart from the opposite apex and the centroid of the pyramid assembly (3) corresponds to the energy center, the conduit (4) being provided with a sphere-shaped cavity (c) placed within the pyramid assembly (3), water in the conduit (4) being sucked by a pump (6) and forced through a conduit (7) into a reservoir (5) connected, at its lower part, with the conduit (4) passing through the pyramid assembly (3), the treated water being finally led to be bottled through a conduit having a valve (2).
Patent RO-126746-B1 (RO)
Title: In-vitro process for simultaneously obtaining hepatocytic and pancreatic progenitors from stem cells isolated from human placenta
Inventor: MIHU CARMEN MIHAELA
IPC: A61K35/545
Filed: 2010-10-18
Abstract: The invention relates to a method for preparing hepatocytic and pancreatic progenitors to be used in cellular therapy. According to the invention, the method consists in growing stem cells isolated from the chorial or membranous portion of the placenta, in usual laboratory conditions, after which there takes place the expansion of undifferentiated stem cells and characterization thereof, further on they being grown on a collagen substrate, in the presence of a differentiation medium, resulting in a change of cell morphology and three-stage differentiation of placenta mesenchymal stem cells into common hepatic-pancreatic progenitor cells.
Patent RO-129592-B1 (RO)
Title: Device for generating mechanical waves in solid materials
Inventor: CHILIBON IRINELA
IPC: G01B17/00
Filed: 2012-12-10
Abstract: The invention relates to a device for generating mechanical waves in solid materials without destroying the material and is meant to be used in the field of materials science, non-destructive control, defects of material, for non-destructive measurement of thickness of some structures and elements made of various materials (metals, composites, etc). According to the invention, the device consists of a sandwich-type piezoelectric transducer formed of a piezoceramic disk () and a metal cylinder-type attenuator (), a generator card () on which there is mounted an electronic circuit for generating high voltage pulses, controlled by low voltage pulses (TTL-type), which is supplied from an adjustable stabilized source of high voltage () and from a stabilized source of low voltage (), which is protected by an RF filter (FRF) for screening the device and protecting the stabilized source () of parasitic signals generated upon the production of high voltage pulses by a high voltage chopper circuit () controlled from the outside upon the input of TTL pulses, a protection cylindrical metal housing (), a metal cover (), another metal cover () on which the piezoceramic disk () is attached, and an output connector () which ensures the connections to some connection conductors and to the ground ().
Patent RS-54173-B1 (RS)
Inventor: SCHRÖDER BRITTA
IPC: A61K31/27
Filed: 2010-12-14
Abstract: Transdermalni terapijski sistem za davanje aktivne supstance preko kože, koji obuhvata slojeve koji su međusobno raspoređeni na sledeći način: a) pokrivni sloj; b) sloj sa aktivnom supstancom koji obuhvata polimernu matricu, koja sadrži aktivnu supstancu; . c) membrana koja kontroliše oslobađanje aktivne supstance; d) adhezivni sloj koji obuhvata prianjajući lepak, koji sadrži poliizobutilen ili smešu nekoliko poliizobutilena; i e) zaštitni sloj; pri čemu je aktivna supstanca rivastigmin ili njegova fiziološki podnošljiva so, hidrat ili solvat, naznačen time, što polimer/polimeri polimerne matrice ne sadrže slobodne hidroksilne i slobodne karboksilne grupe i što adhezivni sloj nadalje sadrži polibuten ili smešu nekoliko polibutena. Prijava sadrži još 14 patentnih zahteva.
Patent RS-54279-B1 (RS)
Inventor: ROBERT NICOLAS
IPC: C07D209/52
Filed: 2012-06-07
Abstract: Postupak za industrijsku sintezu jedinjenja formule (I):naznačen time što jedinjenje formule (II):reaguje sa amonijakom na temperaturi većoj od 100°C kako se formira jedinjenje formule (III):koje se redukuje kako se dobija biciklični amin formule (IV):ovo poslednje jedinjenje se zatim podvrgava:- ili reakciji kuplovanja u baznim uslovima u polarnoj sredini sa jedinjenjem formule (V):u kojoj Y predstavlja -CH2-Hal pri čemu je Hal halogen, ili -CH2-OSO2-R grupu, u kojoj je R (C1-C6)-alkil grupa ili -C6H4-CH3 grupa,- ili reduktivnoj aminaciji u kiseloj sredini sa jedinjenjem formule (V'):u kojoj R' i R" predstavljaju nezavisno jedan od drugog (C1-C6)-alkil grupu, ili R' i R" zajedno obrazuju -(CH2)n- grupu, gde n=2-3, ili jedna grupa R' ili R" predstavlja atom vodonika a druga (C1-C6)-alkil grupu,- ili reduktivnoj aminaciji sa jedinjenjem formule (V"):da bi se dobila slobodna baza jedinjenja formule (I), koja se stavlja zajedno sa hlorovodoničnom kiselinom kako bi se formiralo jedinjenje formule (I) koje se izoluje u vidu čvrste materije.Prijava sadrži još 31 patentni zahtev.
Patent SA-516370985-B1 (SA)
Title: System and Method for Controlling a Valve
Inventor: MICHAEL ANTHONY CONGER
Filed: 2016-04-20
Abstract: A system, method, and computer readable medium for controlling a remote valve and facilitating temporarily driving or activating a battery-powered pilot valve assembly to place an operatively coupled output valve in a switch position. One or more processors receive a temperature measurement associated with an operating environment of the battery-powered pilot valve assembly, compares the received temperature measurement to a temperature threshold level, and continuously drives the battery-powered pilot valve assembly to maintain the output valve in the switch position if the temperature measurement is below the temperature threshold level. Fig. 3
Patent SA-516380311-B1 (SA)
Title: Wireless Communication Apparatus and Method Operable at a Scheduling Entity
Inventor: ALEXEI YURIEVITCH GOROKHOV
Filed: 2016-11-15
Abstract: Aspects of the present disclosure provide for the pairing of an inter-band carrier with a time division duplex (TDD) carrier. If the paired band is a frequency division duplex (FDD) band, then base stations and mobile devices may transmit and receive additional thin control channels on FDD carriers to enable full duplex operations. If the paired band is a TDD band, then a conjugate or inverse carrier may be used such that full duplex, or a close approximation thereto, is achieved. With the introduction of a paired channel and fast control channels, rapid uplink/downlink switching may be achieved for TDD carriers efficiently and effectively. Other aspects, embodiments, and features are also claimed and described. Fig 1.
Patent SA-516380383-B1 (SA)
Title: Process for direct inoculation from concentrated ferments and associated device
Inventor: BAUQUIS ANNE-CLAIRE
Filed: 2016-11-27
Abstract: Process for continuous inoculation of a food product, in ‎particular a dairy product, with ferments, comprising the following ‎steps:‎ ‎-‎ solid concentrated ferments are transformed into liquid ‎concentrated ferments,‎ ‎-‎ the transformed concentrated ferments are continuously ‎injected into a flow of liquid to be inoculated,‎ characterized in that the liquid concentrated ferments are ‎transformed ‎ ‎- by thawing frozen concentrated ferments in a temperature ‎controlled chamber or ‎ ‎- by rehydrating freeze-dried concentrated ferments.‎
Patent SA-518400239-B1 (SA)
Title: Nuclear Magnetic Resonance and Saturation Well Logs for Determining Free Water Level and Reservoir Type
Inventor: GABOR HURSAN
Filed: 2018-10-14
Abstract: Provided in some embodiments are systems and methods for determining characteristics of a hydrocarbon reservoir. Embodiments include conducting a nuclear magnetic resonance (NMR) logging operation of a targeted reservoir section of a wellbore extending into a hydrocarbon reservoir to generate a NMR log of the targeted reservoir section, conducting a resistivity logging of the targeted reservoir section to generate an uninvaded water saturation (Sw) log of the targeted reservoir section, determining for each of a plurality of depths in the section, a T2 cutoff point based on values of the NMR and Sw logs, identifying a subset of the T2 cutoff points that exhibit a hyperbolic trend, determining a theoretical cutoff curve corresponding to the subset of the T2 cutoff points, determining a free water level (FWL) of the reservoir based on the theoretical cutoff curve, and determining a rock type of the reservoir based on the theoretical cutoff curve. Fig 1a.