baber/WOPTO huggingface dataset:
Patent FR-2781744-B1 (FR)
Inventor: PORE JACQUES
IPC: B61L29/00
Filed: 1998-07-30
Granted: 2002-11-29
Abstract: The level crossing, equipped with train approach warning devices (22, 24) and half-barriers (14, 16), also has video cameras (26, 28, 30, 32) mounted on poles to provide image information to a computer (34). Image analysis software, including stereoscopic processing, is used to determine the nature of any obstacle on the crossing and a controller (36) then sends speed control or braking commands as necessary to an approaching train via the usual track communication link (40). Preferably, pixels received from the video cameras are compared with at least one threshold value to determine obstacle contour.
Patent FR-2782633-B1 (FR)
Inventor: NOYER DANIEL
IPC: A61B17/17
Filed: 1998-09-01
Granted: 2000-11-24
Abstract: The system consists of a trial femoral component (10) with a troche prosthesis (11) and incorporates a guide rod (12) which can be positioned relative to the femoral component so that it can pivot about an axis (X - X') lying parallel to the axis (B - B') of the knee joint. The rod is bent at an angle of about 90 degrees, so that its rotation causes a movement of its free end (14D) in a plane parallel to the saggital plane of the knee joint. The tip (12A) of the rod is inserted between the trial femoral component and the femur (1) on which is it positioned.
Patent FR-2774730-B1 (FR)
Inventor: BEYFUSS BERTHOLD
IPC: F16C35/06
Filed: 1999-02-09
Granted: 2001-06-22
Abstract: A bearing plate formed from sheet metal to hold at least two rolling bearings in closely adjoining relation includes a pair of seat surfaces between which is located a ridge. The ridge is positioned in the area of the narrowest point between the outside rings of the rolling bearings and is pulled from the seat surfaces generally in the axial direction. The ridge axially increases in width with curved transition areas that merge with the seat surfaces.
Patent FR-2792773-B1 (FR)
Inventor: PIERREJEAN DIDIER
IPC: H01J37/073
Filed: 1999-04-22
Granted: 2001-07-27
Abstract: In accordance with the invention, the ion source of a time-of-flight mass spectrometer includes an electron gun having an electron source and at least one electrode for conditioning the flow of electrons, followed by at least one microchannel wafer for generating a pulsed secondary electron beam containing a greater number of electrons from a pulsed primary electron beam. The secondary electron beam enters a gas ionization area of an ion gun which produces a flow of ions which is then passed through the flight tube in order to be analyzed by an ion detector. This provides a high-performance ion source which is compact, sensitive and easy to integrate.
Patent FR-2802919-B1 (FR)
Inventor: MAULEON JEAN LOUIS
IPC: C07C9/00
Filed: 1999-12-23
Granted: 2002-05-03
Abstract: Alkylation of isobutane comprises: (a) reacting an isobutane-rich feed (3) with a light-olefin-rich feed (2); (b) passing the effluent to a fractionation column (6); (c) recycling the isobutane-rich fraction (9) to the alkylation reactor; and (d) purifying the n-butane-rich fraction (8) to reduce its C5+ content, passing it through an isomerization reactor (16) to convert n-butane to isobutane, and recycling it to the fractionation column. Alkylation of isobutane with olefins comprises: (a) reacting an isobutane-rich feed (3) with a light-olefin-rich feed (2) in an alkylation reactor; (b) passing the effluent to a fractionation column (6) to obtain an alkylate-rich fraction (7), an n-butane-rich fraction (8) and an isobutane-rich fraction (9); (c) recycling the isobutane-rich fraction to the alkylation reactor; and (d) purifying the n-butane-rich fraction to reduce its C5+ content to 5 wt.% or less, passing it through an isomerization reactor (16) to convert n-butane to isobutane, and recycling it to the fractionation column. An Independent claim is also included for apparatus for alkylating isobutane with olefins, comprising: an alkylation reactor (1); a fractionation column (6) with a bottom outlet for alkylate, a middle outlet for n-butane and a top outlet for isobutane; an isobutane recycle line (9); a rectifier (12) for removing C5+ hydrocarbons from the n-butane fraction; an isomerization reactor (16) for converting n-butane to isobutane; and an isomerizate recycle line (21).
Patent HR-P931102-B1 (HR)
Title: Benzoxazinones as inhibitors of hiv reverse transcriptase
Inventor: YOUNG STEVEN D
IPC: C07D413/10
Filed: 1993-08-06
Abstract: Certain benzoxazinones of the formula: <CHEM>  wherein:     X is halo,     X<1> is trihalomethy, or pentahaloethyl;     Z is O; are useful in the inhibition of HIV reverse transcriptase (including its resistant varieties), the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
Patent HU-225012-B1 (HU)
Title: Hydraulic and/or pneumatic pressure accumulator
Inventor: THUROW GERHARD
IPC: F15B1/16
Filed: 2002-07-26
Abstract: The pressure store (2) has a pressure-resistant cylindrical container (4) and a bottle-shaped vessel in the form of a membrane body (16) of elastomer material. The container and the membrane body can both be pressurized. The elastomer mixture and wall thickness of the membrane body are such that there is a proportionality between the pressure difference between the volumes of the container and membrane body, and the expansion of the membrane body.
Patent HU-221003-B1 (HU)
Title: Peptide nucleic acids
Inventor: BERG ROLF HENRIK
IPC: C12Q1/68
Filed: 1992-05-22
Abstract: A novel class of compounds, known as peptide nucleic acids, bind complementary ssDNA and RNA strands more strongly than a corresponding DNA. The peptide nucleic acids generally comprise ligands such as naturally occurring DNA bases attached to a peptide backbone through a suitable linker.
Patent HU-225895-B1 (HU)
Title: Process for producing 1-amino-4-hydroxymethyl-2-cyclopentene
Inventor: RODUIT JEAN-PAUL DR
IPC: C07C233/23
Filed: 1998-11-27
Abstract: Production of optionally (1S,4R)- or (1R,4S)-1-amino-4-(hydroxymethyl)-2-cyclopentene (VII) or (VIII) (or their salts) involves biotechnological optical resolution of racemic 1-amino-4-(hydroxymethyl)-2-cyclopentene (I) using a hydrolase in presence of an acylating agent. Production of (1S,4R)- or (1R,4S)-1-amino-4-(hydroxymethyl)-2-cyclopentene of formula (VII) or (VIII) (or their salts) involves biotechnological optical resolution of racemic 1-amino-4-(hydroxymethyl)-2-cyclopentene of formula (I) using a hydrolase (specifically a lipase) in presence of an acylating agent.X, Y=H or acyl. Independent claims are included for: (1) preparation of (VII; X, Y= H) or (VIII; X, Y= H) (or their salts) comprising chemical hydrolysis of corresponding compounds in which at least one of X and Y is other than H; and (2) production of (VII; Y= H; X= COR) or (VII; Y= H; X= COR) by (a) reducing 2-azabicyclo-(2.2.1)-hept-5-en-3-one (II) (in racemic or optical isomer form) to racemic (I); (b) carrying out biotechnological optical resolution (I) using a hydrolase in presence of an acylating agent to give (VII; X,Y= H) or (VII; X,Y= H); and (c) acylating to give (VII; Y= H; X= COR) or (VII; Y= H; X= COR). R : 1-4C alkyl, 1-4C alkoxy, aryl or aryloxy. [Image].
Patent HU-222071-B1 (HU)
Inventor: NEBEHAJ LAJOS
IPC: F41J9/02
Filed: 1999-04-22
Abstract: A találmány tárgya mobil lövészeti gyakorlórendszer, amely álló ésmozgó célokra történő lőkészség éleslövészeti fejlesztésére szolgál.Célmozgató mechanikát (24) és a célok (16) szükséges takarását ésláthatóságát biztosító paravánokat (18) tartalmaz, a paravánok (18) acélmozgató mechanika (24) pályája (10) mentén vannak elrendezve. Arendszer elemei bármely lőtéren telepíthető, egymáshozcsatlakoztatható modulegységekből (1) vannak összeállítva, ésszállítást, tárolást biztosító utánfutóra (22) vannak készletezve. ŕ
Patent JP-S4833041-B1 (JP)
IPC: F03C2/08
Filed: 1967-06-22
Abstract: 1,177,236. Bearings. ATLAS COPCO A.B. 6 June, 1967 [23 June, 1966], No. 26046/67. Heading F2A. [Also in Division F1] In a rotary compressor, a rotor 6 is supported at one end by a roller bearing 8 and biased towards a gear casing 2 by an annular wavyspring 35 acting upon a ball-bearing 9, axial thrust exerted on the latter by the spring and the working fluid acting on the rotor being partially balanced by an opposing axial thrust of an annular piston 36 to which pressure is applied through a pipe connection 40, thus minimizing the load on the bearing 9. It is indicated that the piston may be fixed relative to the casing of the compressor and a cylinder 37 therefor rendered movable axially.
Patent JP-3025775-B1 (JP)
Title: スクリュ―式プリプラ射出機
IPC: B29C45/54
Filed: 1999-03-17
Granted: 2000-03-27
Abstract: 【要約】
【課題】  スクリュー式プリプラ射出機の材料替え、色 替えを容易にする。
【解決する手段】  プランジャー２は回転可能に配備し て回転駆動装置に連繋され、且つ外周面に螺旋溝21が開 設され、プランジャー外筒１には、プランジャー２の先 端の最大後退位置よりも後方に筒壁を貫通して排出孔11 が開設されている。材料の交換、色替えの際には、プラ ンジャー２を回転して加熱射出筒１の内面に付着した材 料を螺旋溝21のエッヂで掻き落として排出孔11から排出 する。
Patent NL-1043053-B1 (NL)
Title: Natuurlijke haar product
Inventor: NATHALY CANDIDA MADURO
IPC: A61Q7/00
Filed: 2018-10-24
Granted: 2020-06-02
Abstract: Op dit moment verkoop ik Ty Hair Cream op mijn geboorte land Curaao. Mijn Klanten zien vrijwel direct verschil bij het gebruiken van het product bijvoorbeeld bij droog haar merken ze dat het glans geeft, dat het roos verminderd en het haar dikker en voller wordt. Omdat Ty Hair Cream z'n groot succes is op mijn eiland wil ik het expoteren naar het buitenland, zodat ik meer klanten krijg over de hele wereld. Op dit moment staan mijn ingedienten niet geschreven op mijn label maar om te exporteren ben ik verplicht om ze nu er wel op te zetten en om te verkomen dat iemand mijn recept gerbuikt dien ik mijn aanvraag van octrooi om er zeker van te zijn dat het vanaf nu door niemand kan worden geproduceert.
Patent NL-2013392-B1 (NL)
Title: A method for controlling energy output of a power station, an energy generation system, and power station comprising the same.
Inventor: WOUTER WILLEM DE BOER
IPC: F01K13/02
Filed: 2014-08-29
Granted: 2016-09-26
Abstract: The present invention is related to a metbod for cantrolling energy output of a power station. The invention is further related to an energy generation system, and to a power station comprising the same. According to the invention, a database comprising historie data is used to allow a comparison to bemadebetween recently publisbed data related to the performance in a control area of an dectricity grid and the historie data. In this way, a day can be found in the database that corresponds best to the recently publisbed data. Data for this day is used to forecast the behavior in the control area and the energy output of the power station is controlled in accordance with this forecast.
Patent NL-2016499-B1 (NL)
Title: Skischoentongsamenstel
Inventor: SJOERD GERARD VRIJBURG
IPC: A43B23/26
Filed: 2016-03-26
Granted: 2017-10-04
Abstract: De onderhavige uitvinding betreft een skischoentongsamenstel met een buitenzijde voor rangschikking tegen een binnenzijde van een skischoen en een binnenzijde voor rangschikking tegen een been voor verschaffen van een gevulde ruimte tussen de skischoen van en het been, omvattende: - een bufferlichaam voor het verschaffen van een buffer tussen een binnenzijde van een skischoen en een onderbeen, tijdens gebruik gekromd buitenoppervlak kennende aan de voorzijde voor aanliggen tegen de binnenzijde van de skischoen, - waarbij het bufferlichaam tijdens gebruik is ge- rangschikt voor de voorzijde van het been en zich daarbij in bovenaanzicht uitstrekt over een deel van de voorzijde van het been, en - het bufferlichaam omvattende een in hoofdzaak vlak tibiacontactoppervlak aan de binnenzijde voor in hoofdzaak congruentie met een tibia voor het maken van contact met een oppervlak van het been gevormd door de tibia van het onderbeen.
Patent NL-2017934-B1 (NL)
Title: Koppelinrichting voor het tezamen koppelen van melkafvoerleidingen van melkrobots en een systeem voor het koppelen van meerdere melkrobots aan één of meerdere melkkoeltanks met behulp van de koppelinrichting
Inventor: BRAM VINK
IPC: A01J9/04
Filed: 2016-12-06
Granted: 2018-06-19
Abstract: De uitvinding betreft een koppelinrichting voor het tezamen koppelen van melkafvoerleidingen van melkrobots. Het is het doel van de onderhavige uitvinding om te voorzien in een koppelinrichting voor het tezamen koppelen van melkafvoerleidingen van melkrobots, die voorkomt dat een melkkoeltank na installatie moet worden voorzien van extra aansluitingen, waardoor de melkkoeltank in originele staat blijft en voorkomt dat een melkkoeltank niet kan worden ingezet voor de opvang van melk. De uitvinding heeft tevens betrekking op een systeem voor het koppelen van meerdere melkrobots aan één of meerdere melkkoeltanks.
Patent NL-2018968-B1 (NL)
Title: A wireless inductive charging system and a method
Inventor: VENUGOPAL PRASANTH
IPC: H02J50/12
Filed: 2017-05-23
Granted: 2018-12-04
Abstract: The invention relates to a Wireless inductive charging system. The system comprises a DC power source, a DC/AC inverter and a primary coil. The DC power source feeds the DC/AC inverter. Then, the DC/AC inverter generates an AC charging signal feeding the primary coil. Further, the primary coil transmits a Wireless charging signal to a secondary coil of a device to be charged. The system also comprises a resonance band pass filter eliminating harmonics from the AC charging signal generated by the DC/AC inverter before feeding the primary coil.
Patent NL-2021704-B1 (NL)
Title: Spray device, nozzle unit and nozzle body
Inventor: CORNELIS JOHANNES MARIA VAN RIJN
IPC: B65D83/14
Filed: 2018-09-25
Granted: 2020-05-07
Abstract: A spray device has a spray nozzle unit, comprising a nozzle body (10) with a cavity (40) for receiving a pressurized liquid. A perforated nozzle wall (20) having at least one orifice (21) extending throughout a thickness thereof releases a jet of said pressurized liquid during operation. A fluid flow path from an inlet of the device to said nozzle wall (20) imposes a first fluid flow resistance on said pressurized liquid that is greater than a second fluid flow resistance of air flowing from said cavity (40) through said at least one orifice (21).
Patent NL-2023492-B1 (NL)
Title: Pressure valve for a liquid
Inventor: STIJN VAN DER UPWICH
IPC: G05D16/10
Filed: 2019-07-12
Granted: 2021-02-04
Abstract: Pressure valve for a liquid comprising a housing with an inlet and an outlet for directing the liquid from the inlet through the housing to the outlet along a flow direction, wherein valve further comprises movable member which is movable in the housing towards and away from the outlet between a blocked position wherein the movable member blocks the outlet and an unblocked position wherein the movable member is moved away from the outlet in a direction opposite the flow direction.
Patent WO-03085212-B1 (WO)
Title: Reservoir de chasse d'eau a economiseur
Inventor: ARSENIUK ROMAN
IPC: E03D5/00
Filed: 2003-04-08
Abstract: Ce système de chasse d'eau comporte un réservoir (1) à une seule chambre. Il est caractérisé en ce que son réservoir (1) peut contenir un volume d'eau permettant au moins deux chasses complètes, sa capacité étant d'au moins 20 litres. Cette chasse d'eau doit comporter au moins un branchement (2) sur un tuyau d'alimentation en eaux usées. Ce branchement (2) peut être pourvu d'un filtre anti-dépôts (3). Le robinet de remplissage (4) de la chasse peut être relié au moyen d'un système rinçant l'intérieur de la chasse d'eau. Ce système de chasse d'eau peut comporter un collier de fixation (6) pour un tuyau élastique d'alimentation en eaux usées.
Patent RO-107880-B1 (RO)
Inventor: BIVOLEANU RADU
IPC: B29C45/08
Filed: 1993-10-11
Abstract: Invenția se referă la o matriță cu
dublu efect, tară deșeu tehnologic, pentru injecția
polimerilor, în vederea obținerii unor produse
având masa cuprinsă între 1 g și 25 g, având
distribuția centrală a materialului plastic. Matrița
fiind alcătuită dintr-un distribuitor fix (1) încălzit și
termostat care primește materialul injectat,
distribuindu-1 simultan prin niște canale (2) cu
secțiune redusă în niște cuiburi (3) ale unor
semimatrițe (4 și 5) poziționate simetric în raport
cu distribuitorul (1), semimatrițe care, la
deschidere, formează două spații în care sunt
evacuate produsele injectate, cu ajutorul unui
aruncător (11).
Patent RO-113844-B1 (RO)
Inventor: PETRESCU VAVILA
IPC: C04B35/14
Filed: 1994-12-27
Abstract: Invenția se referă la un procedeu
de obținere a unor creuzete refractare
utilizate în industria metalurgică. Se amestecă
cuarțită având o granulație specifică, cu
2...25 părți în greutate argilă refractară, la
care se adaugă, eventual, 2...12 părți soluție
de monofosfat de aluminiu, acid fosforic sau
lapte de var, 5... 10 părți lignosulfonat de
sodiu sau clorură de magneziu și/sau sulfat
de magneziu. Se malaxează amestecul timp
de 20 min și se macerează timp de 24 h.
După ștampare manuală sau vibrare,
amestecul obținut se presează timp de
minimum 3 min la o presiune de 50...500
bari. Produsele finite se supun uscării și
arderii la temperatura de 1 1 50... 1 200°C.
Patent RO-117458-B1 (RO)
Title: Process for preparing solid fuel as briquettes
Inventor: MIHAI LAZAR
IPC: C10L5/02
Filed: 1995-10-11
Abstract: The invention relates to a process for preparing solid fuel as briquettes, employed in heating rural dwellings. According to the invention, the process consists in using cellolignin waste, resulted after the furfurol extraction, said waste being beforehand crushed up to a size not exceeding 5 mm, bringing to a moisture of 20 % and subjecting to the briquetting without binder at a pressure of 1200...1300 kgf/ square cm and at a temperature of 60 ...225 degree  C in absence of air, in annular press moulds, the resulting briquettes having a heating power/ heat output of minimum 2,000 kcal/kg.
Patent RO-113648-B1 (RO)
Inventor: LUNGU MARIA
IPC: A61M39/00
Filed: 1997-01-16
Abstract: Invenția se referă la fire de uz
medical, pe bază de amestec de policlorură
de vinii și colagen, biocompatibile, destinate
obținerii de articole medicale, cum ar fi:
sonde, drenuri, catetere. Firele conform
invenției rezultă prin vălțuirea compoziției
formată din policlorură de vinil-suspensie
având o valoare K=68...71, stearat de calciu,
stearat de zinc, colagen hidrolizat, flalat, ulei
de soia epoxidat. Procedeul de obținere a
firelor, conform invenției, constă în vălțuirea
compoziției pe bază de policlorură de vinii de
uz medical la o temperatură de 120... 130°C,
timp de 10 min, urmată de presare timp de
10 min la o temperatură^de 135...250°C si
presiune de 300 kgf/cm2, apoi de extrudare
de 25...50 g/10 min și o viteză de lucru de
40 rot/min.
Patent RO-113504-B1 (RO)
Title: Sliding contact system
Inventor: DUMITRESCU GHEORGHE
IPC: H01H1/18
Filed: 1997-02-18
Abstract: The invention refers to a sliding electrical contact system designed for power switchgears, direct or alternating current switches and contact makers that are used to supply and protect electrical energy consumers. The sliding electrical contact system is made up of a mobile contact (1), which has a sliding electrical contact (2) that is coupled electrically and mechanically with the first contact terminal (3) through a case (4), which contains a first spring (5) that ensures a permanent pressure on the sliding contact area (6), and a second spring (7), which ensures the opening of the mobile contact (1).
Patent RO-114524-B1 (RO)
Title: Process for producing olefins with low molecular mass by fluidized bed catalytic conversion of methanol
Inventor: POP GRIGORE
IPC: C07B61/00
Filed: 1997-10-02
Abstract: Methanol is converted in light molecular olefins C2-C4 with 93-100% degree of transformation and more than 90% selectivity in which more than 80% are ethylene and propylene upon a microspherical catalyst based on SAPO-34 zeolite, with continuous reaction-regeneration in a fluidized bed reactor-regenerator system. Ethylene/propylene ratio is changed in relatively large limits 0.69-1.36, by the modification of reaction temperature and space velocity of the feed.
Patent WO-02065587-B1 (WO)
Title: Circuit permettant de coupler de l'energie a un reseau conformateur d'impulsions ou a un condensateur
Inventor: HITCHCOCK ROGER N
IPC: H02J7/02
Filed: 2001-10-26
Abstract: L'invention concerne un circuit de couplage (10) permettant de charger un réseau conformateur d'impulsions (RCI) ou une charge de condensateur (30) à une tension précise. Le circuit de couplage (10) est connecté à une source de tension d'entrée C.C. (12). Le circuit comprend un transformateur de charge (18), comprenant un enroulement d'entrée (20) connecté en série avec un circuit de commutateur (14, 16) et la source de tension C.C. (12). L'enroulement d'entrée (22) du transformateur de charge (18) est connecté au RCI ou à la charge de condensateur (30). Une bobine d'induction de charge (28) est placée en série avec l'enroulement de sortie (22). Un circuit de commande (34) surveille et calcule la quantité totale d'énergie présent au niveau de la charge et de la bobine d'induction de charge (28) et contraint le circuit de commutateur (14, 16) de s'ouvrir quand la charge totale atteint un niveau prédéfini, permettant ainsi à une charge stockée dans la bobine d'induction d'être transférée au RCI ou à la charge de condensateur (30).
Patent AT-510768-B1 (AT)
Title: Faltschachtel
Inventor: LIPPITSCH SUSANNE MAG
IPC: B65D5/24
Filed: 2010-11-16
Granted: 2013-01-15
Abstract: Bei einer Faltschachtel (1), welche Faltschachtel (1) wenigstens drei Speicherräume aufweist, wobei jeder der Speicherräume wenigstens jeweils einen Boden (G) und vom jeweiligen Boden (G) aufragende Seitenwände (S1, S2) aufweist, wobei die Speicherräume um eine Zentralachse der Faltschachtel (1) angeordnet sind, wobei innere Seitenwände (S1) jene der Seitenwände (S1, S2) sind, welche benachbart zur Zentralachse angeordnet sind, wobei jede innere Seitenwand (S1) vom jeweiligen Boden (G) bis zu jeweils einer oberen Faltkante (F) dieser inneren Seitenwand (S1) aufragt und jede innere Seitenwand (S1) jeweils eine benachbart zur Zentralachse angeordnete innere Faltkante (2) aufweist, wobei die obere Faltkante (F) und die innere Faltkante (2) derselben inneren Seitenwand (S1) einen ersten Winkel (a) kleiner als 90° einschließen, wird vorgeschlagen, dass die obere Faltkante (F) und die innere Faltkante (2) derselben inneren Seitenwand (S1) einander an einem ersten Eckpunkt kontaktieren, dass - in Seitenansicht der Faltschachtel gesehen - die von der Faltschachtel (1) umfassten ersten Eckpunkte im Wesentlichen auf selber Höhe angeordnet sind, und dass - in Seitenansicht der Faltschachtel gesehen - die von der Faltschachtel (1) umfassten ersten Eckpunkte höher als weitere Punkte der oberen Faltkanten (F) angeordnet sind, insbesondere die am höchsten angeordneten Punkte der oberen Faltkanten (F) sind.
Patent AT-503017-B1 (AT)
IPC: C12N15/53
Filed: 2005-12-19
Granted: 2007-07-15
Abstract: In a process for the enantioselective enzymatic reduction of a hydroxy ketone of general formula I wherein R1═C1-C6 alkyl and R2═—Cl, —CN, —OH, —H or C1-C6 alkyl, into a chiral diol of general formula II wherein R1 and R2 have the same meaning as in formula I, the hydroxy ketone is reduced with an oxidoreductase in the presence of NADH or NADPH as a cofactor, wherein a) the hydroxy ketone is provided in the reaction at a concentration of ≧50 g/l, b) the oxidized cofactor NAD or NADP having formed is regenerated continuously by oxidation of a secondary alcohol of general formula RXRYCHOH, wherein RX, RY independently represent hydrogen, branched or unbranched C1-C8-alkyl and Ctotal≧3, and c) the reduction of the hydroxy ketone and the oxidation of the secondary alcohol are catalyzed by the same oxidoreductase.