baber/WOPTO huggingface dataset:
Patent EP-1055031-B1 (EP)
Inventor: BELL OSWALD
IPC: B41M7/00
Filed: 1999-02-09
Granted: 2003-08-13
Abstract: The present invention relates to a method as well as a device for deacidification treatment of inscribed or printed paper products (in the following called "books" for short), in which method the pages of the book to be treated are fanned open by means of an opening jet and, by means of an agent jet, the agent is injected between the fanned-open pages of the book; in this, for reducing the flow resistance prevailing between the individual pages 4 of the book 3, a suction takes place on the opposite side. In addition, provision is made for a slot-shaped, curved opening-jet nozzle 12 for generating a suitable opening jet 11.
Patent EP-1056598-B1 (EP)
Inventor: STAMME RAINER
IPC: B41F23/08
Filed: 1999-02-15
Granted: 2002-10-02
Abstract: The invention relates to a sheet-fed rotary printing machine with printing units for multi-color printing and with at least one coating unit. The object of the invention is, inter alia, to provide a sheet-fed rotary printing machine of the type described in the introduction, in which at least one coating unit can be used more universally and set-up times are reduced. This is achieved in that the coating unit 2, 3 is formed from an impression cylinder 10, a form cylinder 12 and a metering system 14 with a screened applicator roller 13. The applicator roller 13 has a circular segment congruent to the cylinder pit of the form cylinder 12, is at least the same size as the form cylinder 12 and can be imaged as a rough intaglio printing form.
Patent EP-1097948-B1 (EP)
Inventor: TANAKA YOSHIYUKI
IPC: C08F2/00
Filed: 1999-03-24
Granted: 2011-06-29
Abstract: L'invention concerne un procédé de production de fluoroélastomère à teneur réduite en ingrédients métalliques ; et un article moulé comprenant un fluoroélastomère à teneur suffisamment réduite en ingrédients métalliques. Ledit procédé consiste à produire un fluoroélastomère sans recours à un oxyde métallique dans l'étape de polymérisation, de coagulation et de séchage du fluoromonomère, au moins un des matériaux de départ excluant les monomères gazeux ne contenant sensiblement aucun ingrédient métallique. Le fluoroélastomère produit par ce procédé possède une teneur en métaux de 50 ppm ou moins.
Patent EP-1062752-B1 (EP)
Title: Appareil et procede permettant d'ameliorer la capacite de connexion dans les systemes de communication a fibres optiques sans fil
Inventor: GFELLER FRITZ
IPC: H04B10/11
Filed: 1999-04-21
Granted: 2004-09-29
Abstract: L'invention concerne un appareil et un procédé permettant d'améliorer la capacité de connexion dans les systèmes de communication à fibres optiques sans fil. On utilise à cet effet au moins deux unités de réception qui reçoivent un signal infrarouge et le convertissent en signal numérique. Les signaux numériques représentent des données sous forme de trames, chacun contenant un champ au moins de données et un champ d'en-tête présentant un préambule. Un dispositif de sélection détermine une mesure associée au rapport signal/bruit du préambule et compare les mesures de manière à sélectionner le signal se prêtant le mieux à un traitement ultérieur.
Patent EP-1078369-B1 (EP)
Inventor: EVANS DALE M
IPC: G11B33/04
Filed: 1999-05-14
Granted: 2002-02-06
Abstract: A molded container having a base and a cover includes a network of segments that define a plurality of apertures through the base and the cover. Although the container retains structural strength, the weight of the container is substantially reduced by virtue of the apertures, thereby reducing the tonnage required to secure the mold during manufacture and reducing the cost of each container. The container can optionally be provided with a flexible sheet to cover the apertures.
Patent EP-1105373-B1 (EP)
Title: Nouveaux derives d'oxime insatures et leur utilisation comme acides latents
Inventor: BIRBAUM JEAN-LUC
IPC: C09D11/02
Filed: 1999-08-06
Granted: 2002-10-09
Abstract: L'invention concerne des composés des formules (I), (II) ou (III), dans lesquelles m représente 0 ou 1; n représente 1, 2 ou 3; R1 inter alia représente phényle non substitué ou substitué, ou naphtyle, anthracyle, phénanthryle, un radical hétéroaryle, ou alcényle C2-C12; R'1 représente inter alia vinylidène, phénylène, naphtylène, diphénylène ou oxydiphénylène; R2 représente inter alia CN, haloalkyle C1-C4, alcoxycarbonyle C2-C6, phénoxycarbonyle ou benzoyle; R3 représente inter alia alkylsulfonyle C1-C18, phényle-alkylsulfonyle C1-C3, camphorylsulfonyle, ou phénylsulfonyle; R'3 représente inter alia alkylènedisulfonyle C2-C12, phénylènedisulfonyle, naphtylènedisulfonyle, diphénylènedisulfonyle ou oxydiphénylènedisulfonyle; R4 et R5 représentent inter alia hydrogène, halogène, alkyle C1-C8, alcoxy C1-C6, haloalkyle C1-C4, CN, NO2, alcanoyle C2-C6, benzoyle, phényle, -S-phényle, OR6, SR9, NR7R8, alcoxycarbonyle C2-C6 ou phénoxycarbonyle; R6 représente inter alia hydrogène, phényle ou alkyle C1-C12; R7 et R8 représentent inter alia hydrogène ou alkyle C1-C12; R9 représente inter alia alkyle C1-C12; R10, R11 et R12 représentent inter alia alkyle C1-C6 ou phényle; lesquels composés réagissent, lors d'une irradiation, comme des composés générant de l'acide et sont par conséquent adaptés à des applications de photorésist.
Patent EP-0984821-B1 (EP)
Inventor: VEUX JEAN-LUC
IPC: A63C9/20
Filed: 1999-03-05
Granted: 2005-05-11
Abstract: A system for binding a shoe to a sports gear, such as a cross-country ski, using a fixing device fixed on the sports gear and including a stop cooperating with the shoe front end and an elastic catch cooperating with the sole associated catch arranged behind the sole front end and exerting on the sole a tension pressure towards the stop. The elastic catch is anchored on the fixing device, at the rear of the stop. The elastic catch and anchoring mechanism are longitudinally mobile countering the elastic mechanism.
Patent EP-1119733-B1 (EP)
Inventor: SHANNON ROBERT A
IPC: F27D99/00
Filed: 1999-10-07
Granted: 2002-07-03
Abstract: A method and apparatus is disclosed for heating metal billets or other separate pieces of metal in a continuous furnace using two different burner systems. The primary burner system provides the majority of available heat at relatively high flame temperatures. The secondary high velocity burner system extrains how furnace products of combustion that impinge around on the load. Thus, heat transfer and temperature uniformity is improved by forcing hot gases between the metal pieces.
Patent EP-1133236-B1 (EP)
Inventor: VAN ESBROECK MAURICE EDUARDUS
IPC: A23L13/00
Filed: 1999-11-16
Granted: 2005-02-02
Abstract: A moulding device for moulding three-dimensional products from a mass of foodstuff which is suitable for human consumption. 
The device comprises a pump device (72) for pumping a mass, and a drum (70,202) which can be rotated in a direction of rotation by associated drive means and is provided with mould cavities (4,204), which mould cavities are each delimited by associated walls, a base (205) and have an opening which lies opposite the base. 
The device also comprises a mass-feed component (5), which is arranged in a mass-feed position along the path for the mould, for the purpose of feeding mass to the mould cavities, which mass-feed component is coupled to the pump device for supplying the mass. 
Closure means (237,238) are provided which act downstream of a mass-feed position for the purpose of closing the filling opening of the mould cavity.
Patent EP-1141436-B1 (EP)
Inventor: ADRIAENSEN LUDO
IPC: B29C48/06
Filed: 1999-12-09
Granted: 2003-11-26
Abstract: A coated steel wire (10) with a bright looking, preferably colored surface has a steel core (12) and this steel core (12) is covered with an intermediate coating layer (14) which gives the brightness to the steel wire. The steel wire is further coated with a transparent polymer (16) which is selected from the group consisting of thermoplastic polyesters, polyimides, polyamides, polycarbonates and polyphtalamides and which comprises a transparent organic coloring agent. <??>In comparison with lacquer coatings the present polymer coating has an enhanced tenacity. <IMAGE>
Patent EP-1055174-B1 (EP)
Inventor: DIENER SEBASTIEN
IPC: G11C29/00
Filed: 1999-12-10
Granted: 2004-04-28
Abstract: The invention relates to a method for storing information in information storage means of a security module and for operating on information units in a security module, and the associated security module, wherein two storage areas ( 41, 42 ) are defined, one of which ( 41 ) is for storing the information (a, b, c; d, e, f) in dispersed pieces (a, b, c), (d, e, f), the other of which ( 42 ) is for storing addresses (AA, 92 ) at which the pieces of information are located. The storage in the second storage area takes place in positions that are based on the addresses ( 83, 86 ) of the pieces of information in the first storage area ( 41 ), as defined before dispersion.
Patent EP-1133279-B1 (EP)
Inventor: MORRIS CHARLES A
IPC: A61K31/4188
Filed: 1999-11-09
Granted: 2005-10-05
Abstract: The present invention relates in general to a method of producing a dry, free-flowing mixture of liquid tocopherols. The present invention also relates to a dry free-flowing vitamin powder.
Patent EP-1132373-B1 (EP)
Inventor: BESSA BELLMUNT JORDI
IPC: C07C217/40
Filed: 1999-09-20
Granted: 2003-11-19
Abstract: The present invention refers to new derivatives of the 6-(4-phenylbutoxy)hexylamine of the general formula (I): <CHEM>  wherein:   R1 is CHO or CHOR3OR4, where R3 and R4 independently are C1-C6 alkyl, aralkyl, or they form 5 or 6 membered cyclic acetals; and R2 is H, benzyl or an alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or acyl group;  and to a process for its obtention. The invention also refers to a new process for obtaining Salmeterol or its pharmaceutically acceptable salts, characterised in that reaction of an organometallic compound of the general formula (13) is carried out in an inert solvent at low temperature with a synthetic intermediate of the general formula (I), wherein R1 is CHO, and R2 is an alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or acyl group.
Patent IT-1288427-B1 (IT)
Title: Game-bird plucking assembly has star-shaped feather removers - mounted before gate in wind tunnel in motor shaft sending feathers to collection bag, cheap assembly suitable for domestic or farm use
Inventor: ELDUAYEN SORONDO ANGEL
IPC: A01K/
Filed: 1997-01-24
Granted: 1998-09-22
Abstract: An assembly to pluck game birds comprises: (a) a tubular housing (1) to the end of which is fitted a bag (3) (to collect feathers) which is removed when full for replacement by an empty bag; (b) a plucking assembly installed within the tubular housing (1), consisting in sequence of a motor (2) whose axle drives the plucking unit (5), and with an air inlet (4) and an outlet (4') surrendering feathers to the bag (3); and (c) the plucking assembly (5) consists of numerous star-like flexible spikes (51) arranged at different angles around the motor (2) output shaft axis, and a series of vertical rods (6) forming a fence between the motor (2) and spikes (51).
Patent IT-1313628-B1 (IT)
Title: Use of gemifloxacin compounds, which can be active against bacterial strains resistant to other antibiotics, in treatment of infections caused by respiratory tract pathogenic bacteria
Inventor: MARCHESE ANNA
IPC: A61K/
Filed: 1999-09-24
Granted: 2002-09-09
Abstract: Gemifloxacin compounds are used to modulate the metabolism of respiratory tract pathogenic bacteria, and to treat and prevent infection by such bacteria. Independent claims are included for: (1) modulating metabolism of respiratory tract pathogenic bacteria, comprising contacting the bacteria with a composition comprising a gemifloxacin compound, or derivative of this; and (2) treating or preventing infection by respiratory tract pathogenic bacteria, comprising administering a gemifloxacin compound to a mammal. ACTIVITY : Antibacterial. In tests, gemifloxacin exhibited activity against S. pneumoniae, with MIC90 values of 0.03 Microg/ml for both penicillin-susceptible and penicillin-resistant strains. It was active against S. aureus, with MIC90 values of 0.03 Microg/ml for methicillin-resistant strains. It was active against all isolates of H. influenzae and M. catarrhalis tested, with MIC90 values of 0.008 Microg/ml for at least some of these. MECHANISM OF ACTION : None given.
Patent IT-1265328-B1 (IT)
Title: Dispostivo di guida del tipo fortemente rigido per materiali d'acciaio da laminare.
Inventor: OKADA SHOJI
IPC: B21B39/16
Filed: 1993-07-21
Granted: 1996-10-31
Abstract: Un dispositivo di guida del tipo fortemente rigido per guidare un materiale di acciaio da laminare comprende mezzi di guida induriti, soddisfacendo la condizione in cui la rigidità (K) in porzioni di contatto con detto materiale d'acciaio è definita da:K = Fmax / Smax in cui Fmax rappresenta il carico massimo esercitato sui mezzi di guida (Fmax = m x FT, 1,0? m ? 2,0) e Smax rappresenta il valore massimo ammissibile entro un intervallo in cui si determina un incremento S di un interspazio dei rulli definito fra le porzioni di contatto (Smax = n x ? 1, 0;2? n ? 0,8). Di conseguenza, può essere migliorata l'efficienza della laminazione e la produttività dei semilavorati laminati d'acciaio, e può essere elevata l'efficienza della produzione e la qualità dei prodotti.(Fig. 4).
Patent IT-1280294-B1 (IT)
Title: Mould for glass bottles
Inventor: BOMBANA MARIANO
IPC: C03B/
Filed: 1995-03-24
Granted: 1998-01-08
Abstract: The invention regards a mould for bottles comprising two metal half shells 1, 2 each having the impression of the bottle 3 to form divided in half along a plane of symmetry containing the longitudinal axis of said bottle, said half shells 1, 2 having cooling channels 4 and at least one device 5 for discharging the air between the glass walls and the mould. Said air discharge device is formed by a metal element having a cylindrical body 6 with, at one first end 61, a blind threaded hole for accommodating a screw 7 for locking said metal element onto its own half shell and, at the second end 62, a cylindrical head which rests on the bottom of the recessed circular impression 12 realised in the internal wall 11 of the half shell 1, 2, said recessed impression communicating with at least one air vent channel 13 realised in said half shell. <IMAGE>
Patent JP-3020170-B1 (JP)
Title: 点火管回収機構
IPC: F41A9/60
Filed: 1999-06-10
Granted: 2000-03-15
Abstract: 【要約】
【課題】  従来の発射装置においては、点火管回収機構 が設けられていないため、飛しょう体発射後の点火管 は、地上等に散乱し、点火管の回収に多大の労苦を必要 とすると共に、飛しょう体発射中の飛しょう体搬送にお いて障害となっていた。
【解決手段】  本発明による点火管回収機構は、閉鎖機 開閉機構(5) の動作と連動して回動するケース(11)を筒 尾環(1) に設け、飛しょう体発射後に点火管抽出機構(3 0 ) によって投げ出される点火管(21)をケース(11)を経 て点火管回収ポケット(20)に回収することができ、点火 管(21)の散乱を防止できる構成である。
Patent JP-3073985-B1 (JP)
Title: 脂肪族ポリエステル系重合体の製造方法
IPC: C08L101/16
Filed: 1999-07-07
Granted: 2000-08-07
Abstract: 【要約】
【課題】  実用上充分な程度の融解温度をもち、色調に 優れ、また機械的強度の優れている高分子量脂肪族ポリ エステル系重合体を実用性の高い重合速度で工業的に有 利に製造する方法を提供する。
【解決手段】  （ｉ）脂肪族ジカルボン酸又はそのジエ ステルと脂肪族ジオールとの混合物又は（ii）該混合物 の予備縮合物を反応原料として用い、この反応原料をエ ステル交換反応触媒の存在下で重縮合反応させる方法に おいて、該触媒に対する助触媒として下記一般式（Ｉ）
Ｏ＝Ｐ(ＯＨ) 2 Ｒ            （Ｉ）
（式中、Ｒは脂肪族基又は芳香族基を示す）で表される 有機ホスホン酸、スルホン酸基又は硫酸エステル基を有 する脂肪族系及び／又は芳香族系化合物及び硫酸の中か ら選ばれる少なくとも１種のプロトン酸を用いることを 特徴とする脂肪族ポリエステル系重合体の製造方法。
Patent JP-2981223-B1 (JP)
Title: ナス漬け物の製造方法
IPC: A23L5/41
Filed: 1998-12-02
Granted: 1999-11-22
Abstract: 【要約】
【課題】 ナスが本来有する天然の色合いを維持し、か つ保存液へのキレート色素の溶出や果肉への色移りを起 こさないナス漬け物を製造する方法の提供。
【解決手段】 ナスまたはその切片を、塩及びミョウバ ンを含有する水溶液であって、ｐＨを６〜１０に調整し た水溶液（以下、塩浸漬液という）に浸漬する工程 （１）、及び得られたナスまたはその切片を、ミョウバ ン及びシクロデキストリン類を含有する水溶液であっ て、浸透圧を800〜1800ミリオズモメーター単位になる ように調整した水溶液（以下、保存液という）にする浸 漬する工程（２）を含むナス漬け物の製造方法。
Patent MD-4455-B1 (MD)
Title: Process for unseeded vapor production of ZnO single crystals
Inventor: COLIBABA GLEB
IPC: C30B29/16
Filed: 2015-11-27
Abstract: The invention relates to semiconductor technology, in particular to processes for producing semiconductor materials, in particular to the unseeded vapor growth of ZnO single crystals in a closed volume.The process, according to the invention, consists in the unseeded vapor growth of ZnO single crystal in a closed volume at a temperature of 900…1100°C with a temperature difference between the charge and the growing crystal of 5…30°C, which is carried out using chemical transport agents such as HCl with an initial pressure at a growth temperature equal to 1…5 atm, carbon in the ratio HCl:C = 2:(1…1.5) moles and hydrogen, maintained in the growth process at a constant pressure equal to 50…200% of the initial pressure of HCl.
Patent NO-326781-B1 (NO)
Inventor: FUNAHASHI YASUHIRO
IPC: A61P9/10
Filed: 2003-04-14
Abstract: The present invention concerns a process for preparing a compound represented by the following general formula (a-    
or a pharmacologically acceptable salt or hydrate thereof, which comprises reacting a compound repr    
with a compound represented by the following general formula (a-4) :   
wherein the residues R 1 , R 2 , R sa1  - R sa3 , R 300 , R 301  and Z are as defined in the claims.
Patent NO-327731-B1 (NO)
Inventor: HAMMER JOEL
IPC: B65D81/26
Filed: 2003-10-29
Abstract: A one-way valve, intended particularly for use in food packages The valve, which is intended to be fitted on a package, is arranged to open in response to an excess pressure inside and is recloseable. An adhesive sheet is arranged on top of an aperture formed in the packaging material. The adhesive sheet being arranged to uncover the aperture when exposed to pressure loads.
Patent NO-332262-B1 (NO)
Inventor: CAPOCCHI ANDREA
IPC: A61K47/48
Filed: 2004-02-10
Abstract: The present invention relates to a process for the preparation of inclusion compounds of piroxicam with  beta -cyclodextrin. More particularly, according to the process of the invention, the aqueous solution of two components is subjected, before drying, to a freezing process at very high rate. The resulting products have physico-chemical characteristics as well as technological and biopharmaceutical properties which are advantageous compared with those obtained according to the prior art processes. The resulting products are suitable for preparing pharmaceutical compositions for the oral administration.
Patent NO-335273-B1 (NO)
Inventor: FERNANDEZ MATILDE IBANEZ
IPC: A61K31/546
Filed: 2004-06-22
Abstract: Composition (A) comprises cefuroxime axetil (I) in the form of particles, entirely enclosed in a coating of at least one lipid (insoluble in water but dispersing or decomposing in contact with gastrointestinal fluid), a bulk sweetener and a binder. (A) Also contains a sweetening system (II) and a texture modifier (III), in amounts so that the bitter taste of (I) is masked.  An Independent claim is included for an orally administered medicament (preferably in aqueous suspension or granule form), comprising (A) together with carriers or excipients.
Patent NO-329965-B1 (NO)
Inventor: WILLINK CORNELIS ANTONIE TJEENK
IPC: B01D51/08
Filed: 2004-11-26
Abstract: The separation of liquid and/or solid components from a multiphase fluid stream passing through a supersonic fluid separator is enhanced by injecting a surface active agent into the fluid stream passing through the separator. Preferably the spray is injected via an injection tube that has a positive or negative electrical potential, whereas one of the walls of the separator housing has an opposite electrical potential, so that the injected spray and any liquid droplets and/or particles formed around the injected nuclei are induced to flow towards said electrically loaded wall.
Patent NO-330456-B1 (NO)
Inventor: FUSHIMI NOBUHIKO
IPC: A61P3/04
Filed: 2005-03-08
Abstract: The present invention provides pyrazole derivatives represented by the general formula: <CHEM> wherein R<1> represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group represented by the general formula: <CHEM> or a group represented by the general formula: <CHEM> while the other represents an optionally substituted C1-6 alkyl group etc.; R<2> represents H, a halogen atom, OH, an optionally substituted C1-6 alkyl group etc.; X represents a single bond, O or S; Y represents a single bond, a C1-6 alkylene group etc. ; Z represents CO or SO2; R<4> and R<5> represent H, an optionally substituted C1-6 alkyl group etc.; and R<3>, R<6> and R<7> represent H, a halogen atom etc., pharmaceutically acceptable salts thereof or prodrugs thereof, which exhibit an excellent inhibitory activity in human SGLT1 and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutical compositions comprising the same, pharmaceutical uses thereof, and intermediates for production thereof.
Patent NO-326592-B1 (NO)
Title: Wirelinetraktor med forskyvbar hjulforstillingsmekanisme
Inventor: INALLY GERALD MC
IPC: E21B23/00
Filed: 2007-03-13
Abstract: Anordning ved brønntraktor (1) som omfatter minst ett på en til brønntraktoren (1) koplet forskyvingsmekanisme (6, 10, 14) anordnet drivhjul (4, 8, 12), hvor forskyvingsmekanismen (6, 10, 14) er innrettet til forspennende å holde drivhjulet (4, 8, 12) an mot en brønnvegg (18), og hvor forskyvingsmekanismen (6, 10, 14) i det minste er dreibar eller forskyvbar mellom en første posisjon hvor drivhjulet (4, 8, 12) ligger an mot brønnveggen (18) på brønntraktorens ene side, og en andre posisjon hvor drivhjulet (4, 8, 12) ligger an mot brønnveggen (18) på brønntraktorens (1) motstående side.
Patent NO-342881-B1 (NO)
Title: Lykt
Inventor: NAUMANN REINER
IPC: F21V17/12
Filed: 2009-06-24
Abstract: En lykt (1) omfatter minst én husdel (2) og et gjennomskinnelig deksel (4) som er koblet til nevnte husdel (2) på en trykktett måte ved hjelp av en skruring (3). En flammehemmende spalte (5) er dannet mellom nevnte husdel (2) og dekselet (4). For å danne en passende flammehemmende spalte (5) på en enkel, strukturell måte og for samtidig å lette sammenstilling av lykten (1) uten negativ innvirkning på resirkulerbarheten, er den flammehemmende spalten (5) dannet direkte av en overflate, spesielt den utvendige overflaten av dekselet (4), og en overflate, spesielt den innvendige overflaten i husdelen (2), og skruringen (3) dekker den flammehemmende spalten (5) ved den enden (9) av spalten som peker mot utsiden (8) av lykten (1).
Patent NO-331192-B1 (NO)
Title: Trykksatt rotasjonsmuffe
Inventor: HAGEN KARLUF
Filed: 2009-10-07
Abstract: Rotasjonsmuffe for bruk sammen med, og sammenskrudd til en borestreng med den hensikt å fungere som et rullelager mellom borestrengen og innsiden av et foringsrør. Rotasjonsmuffen er i følge oppfinnelsen konstruert slik at lagerhuset kan trykksettes og forbli trykksatt under boreoperasjonen uavhengig av trykk i det omkringliggende miljøet, dette for å sikre et rent smørefett for rullelageret. Overtrykket i lagerhuset forhindrer at brønnvæske trenger inn i dette. Rotasjonsmuffen vil ifølge oppfinnelsen ha et overskuddslager av smørefett som tilføres automatisk ved begynnende slitasje på pakningselementene. Status på pakningselementene kan ifølge oppfinnelsen observeres visuelt uten demontering etter bruk.
Patent NO-342749-B1 (NO)
Inventor: HAGER EDWARD
IPC: G01V1/38
Filed: 2016-10-04
Abstract: The invention provides a system (100) for marine seismic surveying, comprising a towing vessel (110) with a controller, a source array (120) and a receiver array (130) with several streamers (131). The source array (120) comprises n ≥ 4 identical subarrays (121) configured 5 as at least (n-1) seismic source groups(S1,... Sn-1), wherein adjacent subarrays (121) are part of at least two source groups (Si, Sj) at different times.