baber/WOPTO huggingface dataset:
Patent HK-1126234-A1 (HK)
Title: Polyester prepolymers
Inventor: LUDEWIG MICHAEL
IPC: C08G/
Filed: 2009-05-22
Abstract: The alkoxysilane group containing polyurethane has general formula (I). The alkoxysilane group containing polyurethane hving general formula (I), is new. PIC : a diisocyanate residue reduced by isocyanates; PES : polyester polyol with 2-3 OH-groups; a : 0 or 1; b : 0-5, preferably 0; c : 1 or 2; X : same or different alkoxy or alkyl residue, where an alkoxy residue is present at Si atom; Q : a difunctional linear or branched aliphatic residue; R : H or organic residue, which is bridged with R 1>; and R 1>H or organic residue, which is bridged with R. Provided that: (A) R=H if a=0 An independent claim is also included for a method for producing polyurethane modified with alkoxysilane group, which involves converting a polyester polyol with diisocyanate to a isocyanate-functional polyurethane prepolymer, which is disguised with an aminosilane. The aminosilane has general formula (II). X,Q : same as variable group of X and Q in general formula (I); and Z : 1-12C alkoxy residue. [Image] [Image] .
Patent HK-1153340-A1 (HK)
Title: Precoding matrix index feedback interaction with discontinuous reception
Inventor: CAI ZHIJUN
IPC: H04W/
Filed: 2011-07-14
Abstract: A method executed by an enhanced node B (eNB), comprising: transmitting a discontinuous reception (DRX) configuration to a user equipment (UE), the DRX configuration indicating an on-duration, the on-duration corresponding to a time interval where the UE receives a downlink control channel; transmitting a precoding matrix index (PMI) resource configuration to a user equipment (UE), the resource configuration indicating a periodic PMI reporting resource; transmitting data to the UE; determining that the data was not received successfully by the UE; determining a time period for potential retransmissions; and receiving PMI using the PMI reporting resource until the determined time period ends.
Patent HK-1153754-A1 (HK)
Title: Nucleic acids and proteins from streptococcus groups a & b
Inventor: TELFORD JOHN
IPC: C07K14/315
Filed: 2011-07-26
Abstract: The invention provides proteins from group B streptococcus ( Streptococcus agalactiae ) and group A streptococcus ( Streptococcus pyogenes ), including amino acid sequences and the corresponding nucleotide sequences. Data are given to show that the proteins are useful antigens for vaccines, immunogenic compositions, and/or diagnostics. The proteins are also targets for antibiotics.
Patent HK-1156745-A1 (HK)
Title: Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
Inventor: HASKELL BARIN G
IPC: H04N19/94
Filed: 2011-10-17
Abstract: A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture (105) and a nearby video picture is determined. The display time difference is then encoded (180) into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.
Patent HK-1002766-A1 (HK)
Title: Hyperbranced macromolecule of polyester type
Inventor: SOERENSEN KENT
IPC: A61K6/884
Filed: 1998-02-12
Abstract: A hyperbranched macromolecule of polyester type comprising a central monomeric or polymeric nucleus and at least one generation of a branching chain extender having at least three reactive sites of which at least one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and at least one is a carboxyl or terminal epoxide group. The nucleus is an epoxide compound having at least one reactive epoxide group. Optionally, the macromolecule comprises at least one generation consisting of at least one spacing chain extender having two reactive sites of which one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and one is a carboxyl or terminal epoxide group. The macromolecule may be terminated by means of at least one chain stopper.
Patent HK-1014690-A1 (HK)
Title: Image output apparatus, image output method, ink jet print method and printed product obtained with said method
Inventor: TAKAHASHI KAZUYOSHI
IPC: B41J19/20
Filed: 1998-12-28
Abstract: An apparatus for performing the printing by scanning a carriage having a plurality of print heads mounted in a predetermined direction relative to the printing medium, so that an image is formed to have a desired color tone and density without decreased throughput. Conversion data for reproducing the color tone and the scan range of the carriage are changed in accordance with the used heads among the mounted heads. Also, the replaceability can be enhanced and the longer life for each group is attained by grouping the heads mounted. Further, the scan range of recording and the scan range for the recovery can be changed by selecting the group for use in accordance with the recording mode.   Also, in an ink jet printing apparatus having a longer print length, a printing method for effecting the stable recording is provided. <IMAGE>
Patent IE-20080316-A1 (IE)
Title: Two-chamber coaxial electrolyser device
Inventor: ILTSENKO VALERI
IPC: C25B9/19
Filed: 2008-04-23
Abstract: The invention relates to electrochemical treatment of liquids and production of gases.  The operating efficiency of the electrochemical device is achieved through the combination of measures: 1)sealing of the device on an element-by-element basis; 2)transfer of the liquid and gaseous phase interface into the passive extension 10 of the anode chamber; 3)utilisation of the tubular cathode 4 as the inner wall and the cylindrical anode 5 with the external coating 14 as the outer wall; 4)positioning of the channels 20, 24, 23 and 25 and determining their dimensions so, as to maintain the helicity of electrolyte movement combined with the increase of the production output; 5)positioning and design of the terminals 12 and 13, which provide for the reduction of their heating; 6)ability of the device to operate under the conditions, when its longitudinal axis deviates from the vertical line by an angle of y less than or equal to 85deg and under pumping conditions.
Patent IE-20080624-A1 (IE)
Title: Vent assembly
Inventor: RAWLINGS DAVID
IPC: E06B3/00
Filed: 2008-07-24
Abstract: A vent assembly comprises a vent member having a vent region and a plurality of inner and outer mounting regions, inner and outer frame components securable to the inner and outer mounting regions, and end caps securable to the inner and outer frame components.  <Figure 1>
Patent IE-20090565-A1 (IE)
Title: A cattle carcass deboning system
Inventor: MCDONNELL DECLAN ARTHUR
IPC: A22C18/00
Filed: 2009-07-20
Abstract: A cattle carcass processing system comprises a carcass input system 1, a deboning system 2, a trimming system 3, a quality control inspection system 4, a primal membrane removal system 5, and a packaging system 6. The input system 1 comprises an overhead chiller conveyor 10 along which carcass slides 11 are delivered to a transfer station 12. The carcass side 11 is split into a hinquarter 14 and a forequarter 15 and alternate forequarters 14 and hindquarters 15 are delivered onto a main processing rail 21 The deboning system 2 comprises the overhead rail 21 along which a plurality of carriages 22 run. Each carriage 22 carries a support hook 13 for a carcass quarter. The carriages 22 are located between a pair of dogs 23, 24. A leading dog 24 is used to sop the carriage 22 and a trailing dog 23 is used to drive the carriage 22 forwards. The dogs 23, 24 are suspended from a moving chain 25. The dogs 23, 24 are pivotal on arms 27 carried by the endless motor driven chain 25. An incoming quarter 14, 15 is weighed and the weight and other details are introduced into the system ny scanning the unique bar-coded label 29 attached to the quarter while it is weighed. This animal identification is tracked and traced throughout the remainder of the process. The beef quarters 14, 15 are subsequently de-boned using electromechanical de-boning machines. Meat cuts and/or bones are removed. The overhead conveyor line 21 indexes the quarters past eight or more workstations in a sop-start fashion. The conveyor line 21 minimises wasted operator movement in retrieving and removing beef quarters from their station while pacing workers to complete their tasks in a defined time period.
Patent IE-20100267-A1 (IE)
Title: Tubeless light-emitting diode based lighting device
Inventor: LIN CHIN-LUNG
IPC: H05B44/00
Filed: 2010-04-27
Abstract: A tubeless light-emitting diode (LED) based lighting device includes at least one base, at least one LED lighting module, and at least one control circuit.  The base includes a heat dissipation body.  The LED lighting module is mounted to the base so that the base provides the LED lighting module with the functions of retention and heat dissipation.  The control circuit is mounted to the base and is electrically connected to power wiring of the LED lighting module for ON/OFF switching of the LED lighting module and supplying of operation power.  As such, a tubeless lighting device that emits light in a power saving manner and is constructed in a volume reduced manner is provided.
Patent IT-BO950123-A1 (IT)
Title: Primo stadio per erogatore ad aria
Inventor: COSTA PAOLO
IPC: A63B/
Filed: 1995-03-23
Abstract: Primo stadio per erogatore ad aria in cui la molla è per costruzione esclusa dal contatto con l'acqua e quindi non può bloccarsi per il ghiaccio, perfettamente bilanciato, senza caduta di pressione durante un singolo atto respiratorio, in cui vi é, per maggiore sicurezza, una membrana che ricopre il pistone e che assicura il funzionamento regolare anche in caso di rottura della guarnizione del pistone; tale trovato è interessante per tutti i subacquei e soprattutto per quelli che operano in acque molto fredde.
Patent IT-BO950142-A1 (IT)
Title: Selettore elastico con relativo sottoago per aghi in macchina tessile circolare
Inventor: JAN ANDO'
IPC: D04B9/00
Filed: 1995-03-30
Abstract: Selettore elastico con relativo sottoago per aghi in macchina tessile circolare in cui il selettore presenta inferiormente una appendice assottigliata di prolungamento che è atta ad essere trattenuta da un anello magnetico di selezione fisso disposto verso l'interno del cilindro, superiormente una porzione elastica sagomata ripiegata su se stessa che è atta a riportare la porzione inferiore verso l'esterno del cilindro ed alla sommità un profilo di impegno con la base del sottoago che è piano ovvero inclinato sostanzialmente a 45 gradi per cooperare con la base del sottoago che presenta in posizione intermedia un tallone di ritorno e di salita e la base piana ovvero, per il sottoago oscillante, inclinata e provvista di almeno un tallone.
Patent IT-CA950002-A1 (IT)
Title: Targhetta indicatrice per il riconoscimento di pecore e capre .
Inventor: CAVALLI ROBERTO
Filed: 1995-04-05
Abstract: LA TARGHETTA INDICATRICE FORMATA DA LAMIERINO PIEGHEVOLE PRESTAMPATO O NO SERVE IN CAMPO ZOOTECNICO PER FACILITARE IL RICONOSCIMENTO DEI CAPI ESPOSTI NELLE FIERE O SOTTOPOSTI AI CONTROLLI FUNZIONALI SOPRATTUTTO NEL CASO DI MUNGITURA MECCANICA.DI FACILE APPLICAZIONE, ECONOMICA, NON CREA PROBLEMI ALLA SALUTE DEGLI ANIMALI.
Patent IT-GE940013-A1 (IT)
Title: Idropulsore.
Inventor: BALDACCI LAPO
Filed: 1994-01-28
Abstract: Idropulsore comprendente un gruppo di pompaggio dell'acqua, un gruppo di erogazione del getto d'acqua provvisto di impugnatura ed un serbatoio; il detto gruppo di erogazione comprende due ugelli affacciati montati su due steli indipendenti, ed il detto gruppo di pompaggio fornisce l'acqua a pressione a detti ugelli in modo alternato.
Patent IT-MI952574-A1 (IT)
Title: Processo per la produzione di schermi di varie dimensioni per  lampade fluorescenti e schermi cosi' prodotti
Inventor: PALLADINO SAVERIO MASSIMO
IPC: H01J7/18
Filed: 1995-12-06
Abstract: Un processo per la produzione di schermi di varie dimensioni per lampade fluorescenti consiste nelle fasi di:- predisporre un supporto per polveri sotto forma di un nastro metallico avente larghezza (L) circa pari alla circonferenza dello schermo più piccolo da produrre;- depositare su detto nastro di supporto almeno una pista di materiale getter ed almeno una di materiali emettitori di mercurio sotto forma di polveri; e - produrre spezzoni del nastro di supporto, tagliandolo con tagli tra loro paralleli, con un passo (D) e ad un angolo (?) rispetto all'asse centrale (X-X) del nastro variabili a seconda delle dimensioni desiderate dello schermo.
Patent IT-MI962238-A1 (IT)
Inventor: BOSO LUCA
IPC: A61K33/00
Filed: 1996-10-29
Abstract: A process for purifying and recovering noble gases (argon, krypton and xenon) used in anaesthetic systems is described, said process being based on purification by means of catalytic conversion and absorption followed by cooling. An apparatus suitable for such a process is also described.
Patent IT-MI972193-A1 (IT)
Inventor: DAL LAGO ALBERTO
IPC: E04F13/08
Filed: 1997-09-26
Abstract: A connection device for prefabricated infill panels which connects a supported outer layer (1) to a supporting inner layer (2) without interrupting the continuity of the insulating layer (3) or of a ventilation chamber; this connection device for the two layers (1, 2) comprises for the supported layer (1) a support element (4) which by applying a guide also becomes a unidirectional sliding element for the differential expansion of the two layers, and also comprises retention elements (6) which allow even considerable relative sliding of the two layers in every direction without fatigue phenomena arising. <IMAGE>
Patent IT-RM920404-A1 (IT)
Title: Abito da lavoro modulare e componibile per pastori e ortolani.
Inventor: CROBU COSTANTINO
Filed: 1992-05-28
Abstract: L'abito comprende elementi modulari 3,6,8 di pelle, stoffa o simili, previsti applicati mediante bottoni automatici o simili, ai moduli base del pantalone 1 e delle Giacca 2.
Patent IT-RM930462-A1 (IT)
Title: Contenitore alveolare per il supporto e l'esposizione di articoli in posizione sostanzialmente eretta
Inventor: ROILA PATRIZIO
IPC: B65D/
Filed: 1993-07-13
Abstract: Viene descritto un contenitore destinato a supportare ed esporre articoli in posizione sostanzialmente eretta sistemati in rispettivi alveoli formati in detto contenitore in maniera tale da estendersi almeno su una fila o in maniera modulare su più file parallele, detto contenitore venendo ricavato in forma tridimensionale mediante operazioni di piegatura ed incollaggio di pannelli e lembi costituenti un fustellato piano monoblocco di partenza generalmente costituito di cartone.
Patent IT-RM930656-A1 (IT)
Inventor: BOUKHMANN GENNADY
IPC: F21V8/00
Filed: 1993-09-28
Abstract: A linear type light source illuminating system comprising a source of light rays, an emission reflecting duct to propagate said light rays, wherein said light ray emitting and propagating duct comprises a set of mutually coupled modular units (2), each of said modular units comprises two support side brackets (3), a first reflecting optical assembly (4) having at least a slit (5) for emitting light rays; first tubular means (8) for attachment to the tunnel wall, second tubular means (7) for alignment of said support brackets (3); third tubular means (7) for coupling and clamping said support brackets (3) coverage means (9) having at least a transparent portion corresponding to said light ray emitting slit (5), a second optical reflecting assembly (6) which is longitudinally extended and attached to said support brackets (3); fastening means (16) for said second longitudinally extending optical assembly (6), resilient means (10) for holding said support side brackets (3) and said coverage means (9). <IMAGE>
Patent IT-RM950650-A1 (IT)
Title: Bloccapercussore a forma di caricatore con serratura incorporata,  atto ad impedire l'uso della pistola inseribile al posto del vero
Inventor: BARRACCHIA RICCARDO
IPC: F41C/
Filed: 1995-09-28
Abstract: IL TROVATO COMPRENDE UN FINTO CARICATORE CON SERRATURA INCORPORATA IL QUALE VIENE INSERITO AL POSTO DI QUELLO VERO NELL'IMPUGNATURA DELLA PISTOLA (DOVE ALLOGGIA IL VERO CARICATORE CHE TOGLIEREMO) QUANDO INTENDEREMO LASCIARE IN CASA/UFFICIO LA NOSTRA PISTOLA. CARATTERISTICA VANTAGGIOSA DEL TROVATO E' QUELLA DI AVERE UNA LINGUETTA, CHE IMPEDISCE AL PERCUSSORE DI TOCCARE L'EVENTUALE PROIETTILE CHE SI TROVI IN CANNA, COSI' DA POTER FINALMENTE IMPEDIRE QUELLE DISGRAZIE FAMILIARI (SUICIDI, RAPTUS, OMICIDI, GIOCHI CON LE ARMI DA PARTE DI BAMBINI) DISGRAZIE CHE SONO ATTUALMENTE FONTE DI PREOCCUPAZIONE PER CHIUNQUE DETENGA ARMI IN CASA ANCHE SE CHIUSE A CHIAVE NEL CASSETTO (FACILMENTE APRIBILE). ALTRA CARATTERISTICA VANTAGGIOSA DEL TROVATO E' QUELLA DI IMPEDIRE CHE CHIUNQUE, VENUTO IN POSSESSO DELLA NOSTRA PISTOLA E PROCURATOSI UN PROIETTILE, POSSA INFILARLO IN CANNA DOPO AVER TIRATO INDIETRO IL CARRELLO.
Patent NO-20100326-A1 (NO)
Title: System for reduksjon av utslipp fra flyktig flytende last
Inventor: BRODRESKIFT KNUT
IPC: B67D9/00
Filed: 2010-03-08
Abstract: System for reduksjon av utslipp fra flyktig flytende last i et rørsystem for lasting av last til en lastetank, der rørsystemet omfatter en øvre rørsegment (1.1) og et nedre rørsegment i form av et hovedsakelig vertikalt dropprør (1.4) som ender nær bunnen av lastetanken, og som omfatter innretning for styring av trykk i rørsystemet under lasting. I følge foreliggende oppfinnelse en strømningsbegrensningsinnretning er installert i øvre rørsegment (1.1) før dropprøret (1.4) for å sikre positivt trykk gjennom hele det øvre rørsegmentet, og dropprøret (1.4) er anordnet med et perforert trykkutligningsrør (1.7) og en fri strøm dempningsanordning (1.6) omslutter trykkutligningsrøret, der den øvre del av dropprøret, over det øvre rørsegmentet (1.1), omfatter en toppdel (1.5) for slik å danne en gassoppsamling så vel som en trykkovervåking og volumstyring kommuniserende med trykkutligningsrøret.
Patent NO-20110155-A1 (NO)
Title: Anordning for a redusere slitasje pa vaier i vinsjdrevet bolgekraftverk
Inventor: STRAUME INGVALD
IPC: E21B19/02
Filed: 2011-01-28
Abstract: Oppfinnelsen er en anordning for å minske slitasje på vaier i et vinsj- eller taljesystem med en arbeidende hovedvinsj (1) ved at vaier sakte kan spoles over på, eller ovenfra en tilleggsvinsj (2), fra eller til hovedvinsjen (1). Tilleggsvinsjen er festet i motsatt ende av vaieren (3) i forhold til hovedvinsjen. Oppfinnelsen omfatter midler til å la slik overspoling skje av seg selv, uten at menneskelig overvåkning eller inngripen er nødvendig. Ved at tilleggsvinsjen på denne måten forskyver vaieren i forhold til hvilke partier av den som ruller mest fram og tilbake på hovedvinsjen, fordeles slitasje ut over et større område av vaieren, og levetiden forlenges. På den måten virker oppfinnelsen som en erstatning for manuelle «slip and cut»-operasjoner, som brukes som levetidsforiengende vedlikeholdsmetode på vaiere i boretårn. Oppfinnelsen er primært tenkt brukt i vinsjdrevne bølgekraftverk, hvor langtids driftssikkerhet kombinert med lave vedlikeholdskostnader er særlig ønskelig.
Patent NO-20110954-A1 (NO)
Title: Enkeltturs-landingsskulderanordning med positiv lasing for justerbar henger
Inventor: NGUYEN DENNIS P
IPC: E21B33/04
Filed: 2011-07-01
Abstract: Et system inkluderer, i visse utførelser, en landingsanordning. Landingsanordningen inkluderer en toppring. Landingsanordningen inkluderer også en bunnring anordnet aksialt nedenfor toppringen. En radialt innvendig overflate av toppringen er konfigurert til inngrep med en radialt utvendig overflate av bunnringen via første gjenging. Landingsanordningen inkluderer også en låsering anordnet mellom toppringen og bunnringen på en radialt utvendig side av landingsanordningen. Landingsanordningen inkluderer videre en landingsring anordnet aksialt nedenfor bunnringen.
Patent NO-20120717-A1 (NO)
Title: Anordning og fremgangsmåte ved injeksjonsprøvetaker
Inventor: ENGELIEN GERT HELMUT
IPC: G01N1/22
Filed: 2012-06-20
Abstract: Anordning og fremgangsmåte for kjemikalieinjeksjon omfattende en injeksjonslanse (36) som er forskyvbar mellom en uttrukket, uvirksom posisjon og en innskjøvet, virksom posisjon hvor injeksjonslansens (36) frie endeparti (37) befinner seg i et fluidrør (2), og hvor injeksjonslansen (36) forløper gjennom et prøverør (10) som også rager inn i fluidrøret (2), og hvor prøverøret (10) i oppstrøms retning relativt fluidstrømmen er forsynt med minst én åpning (32).
Patent NO-20121208-A1 (NO)
Title: Løfteanordning for tilknytning av en løfteslynge til en livbåt, en livbåt og en fremgangsmåte"
Inventor: MOSTERT HENDRIK PIETER
IPC: B63C9/02
Filed: 2012-10-17
Abstract: Foreliggende oppfinnelse vedrører en anordning for tilknytning av en livbåt til en løfteslynge (1). Oppfinnelsen omfatter et første innfestingselement (5a) og et andre innfestingselement (5b) motstående det første innfestingselementet; en første styreforankring (7) fastgjort til det første innfestingselementet (5a), hvor den første styreforankringen (7) innbefatter et første styreområde (17) for å styre løfteslyngen (1) i en retning vekk fra det første innfestingselementet (5a) og en første mottakerfordypning (14); en andre styreforankring (8) fastgjort til det andre innfestingselementet (5b), hvor den andre styreforankringen (8) innbefatter et andre styreområde (18) for å styre løfteslyngen (1) i en retning vekk fra det andre innfestingselementet (5b) og en andre mottakerfordypning (13); et løfteslynge- låseorgan (9) dreibart anordnet på den andre styreforankringen slik at låseorganet kan dreie mellom en første posisjon hvor låseorganet (9) er anbragt i den første mottakerfordypningen (14) og i den andre mottakerfordypningen (13), og en andre posisjon vekk fra den første styreforankringen (7), hvorved nevnte løfteslynge (2) kan bli tilknyttet anordningen i nevnte første posisjon for nevnte løfteslynge-låseorgan (9) og bli frigjort fra anordningen når løfteslyngen er avlastet i nevnte andre posisjon for nevnte løfteslynge-låseorgan (9). En livbåt og en fremgangsmåte er også beskrevet.
Patent NO-20160573-A1 (NO)
Title: Bassenget med lukket flytende oppdrettsmerd
Inventor: NORDAHL-PEDERSEN GEIR
IPC: A01K61/00
Filed: 2016-04-07
Abstract: Det beskrives et anlegg for oppdrett av fisk, og en fremgangsmåte for å etablere et vannreservoar for oppdrett av fisk.
Patent PE-20000835-A1 (PE)
Title: Dispositivo compensador de la presion para un recipiente doble
Inventor: KLADDERS HEINRICH
IPC: B65D83/76
Filed: 1999-11-05
Abstract: QUE COMPRENDE: UN RECIPIENTE EXTERIOR RIGIDO UNIDO HERMETICAMENTE CON UN RECIPIENTE INTERIOR; Y UN RECIPIENTE INTERIOR COLAPSABLE, EL CUAL ES LIMITADAMENTE HERMETICO A LA DIFUSION RESPECTO A UN LIQUIDO CONTENIDO EN DICHO RECIPIENTE. ENTRE DICHOS RECIPIENTES EXISTE UN ESPACIO INTERMEDIO LLENO DE GAS, Y AL MENOS UN CANAL PRACTICADO SOBRE LA PARED DEL RECIPIENTE EXTERIOR O SOBRE UN INSERTO APLICADO A DICHA PARED EN UNO DE CUYOS EXTREMOS ESTA APLICADO UN FILTRO PERMEABLE A LOS GASES, Y CUYO EXTREMO VUELTO HACIA EL ENTORNO ESTA CERRADO CON UNA LAMINA DE SELLADO; DICHO CANAL UNE EL ESPACIO INTERMEDIO CON EL ENTORNO DEL RECIPIENTE DOBLE
Patent PL-293117-A1 (PL)
Title: Method of obtaining substituted alkenic acid and its derivatives
IPC: C07C323/62
Filed: 1992-01-08
Abstract: Substd. alkenoic acid derivs. of formula (I), their isomers and salts are new; where R1, R2 = H, 1-6C alkyl or benzyl. Pref., claimed are 4-(4-carboxyphenylthio)-7-(4-(4-phenoxy butoxy)phenyl)hept-5(Z)enoic acid and 4(S)-(4-carboxyphenylthio)-7-(4-(4-phenoxy butoxy)phenyl))hept-5(Z)enoic acid.