baber/WOPTO huggingface dataset:
Patent AT-E422785-T1 (AT)
Inventor: GERSHT ALEXANDER
IPC: H04J3/14
Filed: 1999-06-25
Granted: 2009-02-15
Abstract: A method and system for controlling congestion in an ATM network comprises the steps of pre-allocating, for a pre-determined interval of time, a set of burst access parameters to a set of pre-allocated virtual paths between a set of source node and destination node pairs in the ATM network, and controlling, at the burst level, the traffic at each source node based on the pre-allocated set of burst access parameters and without communicating with other nodes in the ATM network. Specifically, the network, for a pre-determined interval of time, pre-allocates a set of virtual paths between each source-destination node pair in the network, pre-allocates a set of maximum permitted rates to the pre-allocated set of virtual paths, respectively, and pre-assigns a set of burst access thresholds to a set of service classes, respectively, in the pre-allocated virtual paths, where the pre-assigned burst access thresholds are less than or equal to the corresponding pre-allocated maximum permitted rates. Based on the maximum permitted rates and the burst access thresholds, each source node in the network then controls, at the burst level, the traffic directed to the source node without communicating with other nodes in the network. A source node admits a detected burst onto a pre-allocated virtual path when a total reserved peak cell rate for all bursts that are in progress in the pre-allocated virtual path plus a peak cell rate of the detected burst is less than the identified burst access threshold. Otherwise, the source node rejects the detected burst from the network.
Patent AT-E231423-T1 (AT)
Inventor: KAWALLA RUDOLF
IPC: B21B31/20
Filed: 1999-09-28
Granted: 2003-02-15
Abstract: The invention relates to a process for the production of tailored blanks by the hot rolling of a strip and to an apparatus for the performance of said process. To obtain tailored blanks to be cut to length from the rolled strip, the hot strip is cooled or heated in portions, so that with a substantially constant rolling force the strip undergoes a differential decrease in thickness in the individual portions, which have been given a differential yield stress value by the differential temperature adjustment.
Patent AT-E326039-T1 (AT)
Inventor: JUNG STEFAN
IPC: G01B7/34
Filed: 1999-09-01
Granted: 2006-06-15
Abstract: The sensor is provided for the capacitive acquisition of images, in particular fingerprint images. The capacitors assigned to each pixel are supplemented by reference electrodes which are capacitively coupled to one another with coupling capacitances. Parallel acquisition of the image with the measuring electrodes and the additional reference electrodes yields, on the one hand, an image subdivided in accordance with the grid, and, on the other hand, local averaging resulting from the capacitive coupling is performed, which is used as a local reference value.
Patent AT-E249091-T1 (AT)
Inventor: SCHMAUDER WERNER
IPC: H01H5/30
Filed: 1999-10-14
Granted: 2003-09-15
Abstract: The invention relates to a snap-action switch comprising two spaced fixed contacts, a contact element that can move between a closed position, in which the contact element connects the fixed contacts in an electrically conductive manner, and an open position, in which the contact element is spaced from at least one fixed contact. Said switch also comprises an actuation element for moving the contact elements between the closed position and the open position and a snap-action spring for snapping the contact element between the closed position and the open position. The invention aims at improving said snap-action switch in such a way that it has a compact and simple structure. To this end, the snap-action spring comprises a domed spring plate that may be snapped from a first domed positioned to a second domed position and vice versa.
Patent AT-E252878-T1 (AT)
Inventor: HIRSCH UWE THOMAS MICHAEL HORS
IPC: A61F13/15
Filed: 1999-12-09
Granted: 2003-11-15
Abstract: The present invention relates to an improvement for breathable absorbent articles such as sanitary napkins, catamenials or adult incontinence inserts which are used in combination with undergarments. The breathable absorbent articles according to the present invention are provided with a fastening adhesive to attach them to the undergarment during use. In particular the present invention relates to such absorbent articles which are made from several layers or components which are joined to each other along their periphery and held together across their surfaces by integrating adhesive connections. According to the present invention all of the integrating adhesive connections extend across a region which is co-extensive with or smaller than the region occupied by the fastening adhesive.
Patent DE-86727-T1 (DE)
IPC: F16J15/06
Filed: 1983-01-31
Abstract: A cylinder head gasket for internal combustion engines has all-metal composite refractory seal around each of the cylinder openings and elastomeric seals around each of the liquid passages, the latter being symetrically disposed on opposite sides of the central plate. The refractory seals comprise ribbed sheet metal members disposed symetrically and having perimeters extending inwardly at each cylinder opening, and cover members reaching from one side and the other over the perimeters.
Patent DE-431442-T1 (DE)
IPC: B29C43/02
Filed: 1990-11-27
Abstract: A flexible glass fiber reinforcement material has a microwave-sensitive or ultraviolet sensitive binder added and is formed into a desired shape. Selected electromagnetic energy (microwave or ultraviolet) is then applied to cure and rigidize the binder. A mold (72) for shaping the reinforcement material comprises a mold cavity defined by microwave or ultraviolet transparent material divided into separate and separable mold parts and, for microwave applications, each part carries one half of a split microwave waveguide which directs microwave energy to cure the binder resin when the mold is closed. For ultraviolet applications, an ultraviolet source (or sources) is located in the mold. Energetic stitching of a reinforcement rib is performed by applying a binder resin to the rib at at least one location, placing that location into contact with a preform (84) and curing the binder resin to bond the parts together.
Patent DE-981709-T1 (DE)
Inventor: BEN-SHALOM ZVI
IPC: F16K31/02
Filed: 1997-09-01
Abstract: PCT No. PCT/IL97/00289 Sec. 371 Date Aug. 18, 1998 Sec. 102(e) Date Aug. 18, 1998 PCT Filed Sep. 1, 1997 PCT Pub. No. WO98/53233 PCT Pub. Date Nov. 26, 1998An electromagnetic flow control apparatus includes a fluid flow conduit, a magnetic membrane, and a plurality of discrete sources of selectably variable magnetic fields, such as electromagnets, arranged in an ordered array, to drive the membrane in a desired manner to control the flow of fluid in the conduit. The membrane can preferably be driven between two extreme positions wherein the flow of fluid in the conduit is totally unrestricted in the rest position of the membrane and wherein the flow is highly restricted or stopped completely in the maximum deformation of the membrane radially inward.
Patent ES-2193007-T1 (ES)
Inventor: LEIBOVICI MINUTZA
IPC: A61K/
Filed: 2001-02-21
Abstract: Novel, stable pharmaceutical formulations for the oral administration of high purity torsemide modification II are disclosed. These formulations release high purity torsemide modification II in water at a constant and high purity rate, and the high purity torsemide modification II therein does not rearrange to torsemide modification I over time. Methods for their manufacture are also disclosed.
Patent ES-2043568-T1 (ES)
Inventor: CHEPAITIS ELIA V
IPC: G09B21/00
Filed: 1988-04-11
Abstract: A tactile code for use by visually impaired and blind persons comprising embossed alphabet symbols representing the letters of the conventional Roman alphabet and embossed numeral symbols representing the conventional Arabic numerals. All of the alphabet symbols and the numeral symbols comprise at least a frame, and at least some of the alphabet symbols and numeral symbols also comprise an interior portion surrounded by the frame. The alphabet symbols are divided into four regions, the alphabet symbols in the first and third regions having a circular frame and the alphabet symbols in the second and fourth regions having a square frame. Each of the alphabet symbols embodies at least a physical association with its corresponding capital letter of the Roman alphabet. The numeral symbols all have a diamond frame, and each of the numeral symbols embodies at least a logical or physical association with its corresponding Arabic numeral. Capital letters of the Roman alphabet are represented by alphabet symbols having double frames.
Patent ES-2046154-T1 (ES)
Title: Antena, en especial para vehiculos.
IPC: B60R1/12
Filed: 1993-04-14
Abstract: ANTENA, EN PARTICULAR PARA AUTOMOVIL, CON AL MENOS UN CONDUCTOR ELECTRICO Y UN SOPORTE PARA EL CONDUCTOR, DONDE EL SOPORTE ES UNA PARTE ESTANCA DEL AUTOMOVIL NO CONDUCTORA ELECTRICA.
Patent ES-2492815-T1 (ES)
Inventor: QUEEN CARY L
IPC: C07K16/46
Filed: 1989-12-28
Abstract: Compsn. comprises a pure human-like immunoglobulin (Ig) which (a) reacts specifically with p55 Tac protein and/or (b) inhibits binding of human interleukin-2 (IL-2) to its receptor. Also new are (1) human-like Ig having 2 pairs of light/heavy chains and able to react specifically with an epitope of a human IL-2 receptor with affinity at least 10 power 8 per mole, the chains including complementarily determg. regions (CDR's) and human-like framework regions (FR's), the CDR's being from different Ig molecules than FR's; (2) humanised Ig (hIg) which can bind to IL-2 receptors and contain at least one CDR from anti-Tac antibody in a human-like FR contg. at least one amino acid from the anti-Tac antibody; (3) nucleic acid encoding for human-like FR and at least one murine CDR, and (4) cells transfected with nucleic acid.
Patent CY-1108035-T1 (CY)
Inventor: IVANOV VENTZISLAV STOYANOV
IPC: G07F17/32
Filed: 2007-10-11
Abstract: The invention refers to an entertainment telelotto game, which may find application in the entertainment industry in running lotteries, tele- or radio-quiz games and other kinds of pools "totalizer" type. The game begins after each participant has already made his/her stakes before the start with the help of telecommunication means and has entered registration data. This enables the communication-computerized system to generate individual registration numbers in the form of numeric and/or letter combination. To determine the prizes drawings are run by making use of devices for the drawing of chance numbers on a random principle. To determine the amount of the prize "maze/labyrinth" type devices are made use of. In each drawing different parts of the registered stakes are played, while over a specified period of time an additional / extra drawing is organized for winning of the accumulated jackpot for the period specified
Patent CY-1110178-T1 (CY)
Inventor: LEWANDROWSKI PETER
IPC: A61P35/00
Filed: 2010-06-09
Abstract: The present invention relates to novel formulations of tumour-associated peptides binding to human leukocyte antigen (HLA) class I or II molecules as vaccines for the use in immunotherapeutic methods. In particular, the present invention relates to formulations for the immunotherapy of cancer, in particular renal cancer. The present invention furthermore relates to vaccine compositions for eliciting anti-tumour immune responses.
Patent CY-1111025-T1 (CY)
Inventor: JEON BYEONG MOON
IPC: H04N19/94
Filed: 2010-12-22
Abstract: Using a method of calculation for direct mode motion vectors of a B (Bi-predictive) picture in a moving picture coding system to extract the direct mode motion vectors of the B picture comprises of a co-located block in a list 1 reference picture for direct mode has two motion vectors, selecting any one (a list 0 motion vector or list 1 motion vector) of the two motion vectors, and deriving the direct mode motion vectors of the B picture from the selected motion vector. An independent claim is included for a method of calculation of direct mode motion vectors from a B picture that is temporally closer to the list 1 reference picture.
Patent CY-1112747-T1 (CY)
Inventor: MICKELEIT CARSTEN
IPC: G06F3/12
Filed: 2011-10-26
Abstract: A system and method processes print jobs in server-based networks as well as a relevant network. The system and method provides a printer driver with a printer-independent first part installed on a server and a printer-dependent second part installed on an end device.
Patent CY-1112000-T1 (CY)
Inventor: SOEJIMA KENJI
IPC: A61K38/48
Filed: 2011-11-11
Abstract: This invention is intended to isolate and identify a vWF-specific cleaving protease.  The vWF-specific cleaving protease cleaves a bond between residues Tyr 842 and Met 843 of vWF and comprises a polypeptide chain having Leu-Leu-Val-Ala-Val as a partial sequence, and more preferably comprises a polypeptide chain having the partial N-terminal amino acid sequence of a mature protein, Ala-Ala-Gly-Gly-He-Leu-His-Leu-Glu-Leu-Leu-Val-Ala-Val, and having a molecular weight of 105 to 160 kDa in SDS-PAGE under reducing or non-reducing conditions. Isolation and identification of this vWF-specific cleaving protease have led to the possibility of replacement therapy for patients having diseases resulting from a deficiency of the protease, such as thrombotic thrombocytopenic purpura.
Patent CY-1114896-T1 (CY)
Title: Ενωσεις πυραζολιου, διεργασια για την παραγωγη τους και ζιζανιοκτονα που περιεχουν αυτες
Inventor: TSUKAMOTO MASAMITSU
IPC: C07D231/20
Filed: 2014-02-21
Abstract: Η παρούσα εφεύρεση παρέχει ένα νέο ζιζανιοκτόνο που εμφανίζει εξαιρετικά ζιζανιοκτόνα αποτελέσματα, το οποίο έχει ένα ευρύ φάσμα εφαρμογής συμπεριλαμβανομένων γεωργικών εκτάσεων και μη γεωργικών εκτάσεων και διάφορες μεθόδους εφαρμογής συμπεριλαμβανομένης της κατεργασίας εδάφους και κατεργασίας φυλλώματος. Μια ένωση πυραζολίου που παριστάνεται με τον τύπο (I) ή άλας αυτής: όπου το R1 είναι αλκύλιο, το R2 είναι ένα άτομο υδρογόνου ή αλκύλιο, το R3 είναι αλκύλιο, το R4 είναι αλκύλιο, το R5 είναι αλκύλιο υποκατεστημένο με ένα αλκοξυ, αλκοξυ υποκατεστημένο με ένα αλκοξυ, ή αλκοξυκαρβονύλιο, το R6 είναι αλκυλοσουλφονύλιο, το Α είναι αλκυλένιο υποκατεστημένο με τουλάχιστον ένα αλκύλιο˙ μια διεργασία για την παραγωγή της˙ ένα ζιζανιοκτόνο που περιέχει αυτή ως ένα ενεργό συστατικό˙ και μια μέθοδος για την καταπολέμηση ανεπιθύμητων φυτών ή για την αναστολή της ανάπτυξης τους, η οποία μέθοδος περιλαμβάνει την εφαρμογή μιας ζιζανιοκτόνως αποτελεσματικής ποσότητας αυτής στα ανεπιθύμητα φυτά ή σε ένα μέρος όπου αυτά αναπτύσσονται.
Patent CY-1116754-T1 (CY)
Title: Παραγωγα νιτροκατεχολης ως αναστολεις της comt
Inventor: LEARMONTH DAVID ALEXANDER
IPC: C07D401/04
Filed: 2015-08-26
Abstract: Περιγράφονται νέες ενώσεις του τύπου I. Οι ενώσεις έχουν δυνητικά πολύτιμες φαρμακευτικές ιδιότητες στην αντιμετώπιση ορισμένων διαταραχών κεντρικού και του περιφερικού νευρικού συστήματος.
Patent CY-1117510-T1 (CY)
Title: Μεθοδος για την κωδικοποιηση κινησης σε μια ακολουθια βιντεο
Inventor: LAINEMA JANI
IPC: H04N19/46
Filed: 2016-03-01
Abstract: Μια μέθοδος κωδικοποίησης βίντεο αντισταθμισμένης κίνησης η οποία καθιστά εφικτή την κωδικοποίηση με αποτελεσματικό τρόπο μιας ακολουθίας βίντεο με ένα συστατικό παγκόσμιας κίνησης. Ένας κωδικοποιητής (600) είναι διευθετημένος για να αναθέτει μακροενότητες προς κωδικοποίηση σε συγκεκριμένες καταστάσεις κωδικοποίησης συμπεριλαμβανομένης μιας κατάστασης παράλειψης, η οποία χρησιμοποιείται για την ένδειξη ενός εκ των δύο πιθανών τύπων κίνησης μακροενότητας: (α) μηδενική κίνηση, ή (β) παγκόσμια ή περιφερειακή κίνηση. Καθώς η κάθε μακροενότητα κωδικοποιείται, μια προηγουμένως κωδικοποιημένη περιοχή η οποία περιβάλλει την μακροενότητα εξετάζεται και τα χαρακτηριστικά κίνησης σε αυτή την περιοχή καθορίζονται. Με την κατάσταση παράλειψης, η προς κωδικοποίηση μακροενότητα και ένα διάνυσμα κίνησης το οποίο περιγράφει την παγκόσμια κίνηση ή περιφερειακή κίνηση συσχετίζεται με την μακροενότητα εάν η κίνηση στην περιοχή είναι χαρακτηριστική της παγκόσμιας κίνησης ή της περιφερειακής κίνησης. Εάν η περιοχή επιδεικνύει ένα ασήμαντο επίπεδο κίνησης, ένα διάνυσμα μηδενικής αξίας κίνησης συσχετίζεται με την μακροενότητα.
Patent CY-1121330-T1 (CY)
Title: Συνθεσεις που περιλαμβανουν αζελαστινη και μεθοδοι χρησης αυτων
Inventor: DANG PHUONG GRACE
IPC: A61K9/00
Filed: 2019-01-08
Abstract: Η παρούσα εφεύρεση παρέχει φαρμακευτικές συνθέσεις που περιλαμβάνουν αζελαστίνη, ή ένα φαρμακευτικά αποδεκτό άλας ή εστέρα αυτής, όπου περιλαμβάνεται υδροχλωρική αζελαστίνη. Προτιμώμενες τέτοιες συνθέσεις περαιτέρω περιλαμβάνουν έναν ή περισσότερους φαρμακευτικά αποδεκτούς φορείς ή έκδοχα που μειώνουν την ποσότητα της οπισθορινικής διαρροής και/ή ελαχιστοποιούν ή καλύπτουν τη δυσάρεστη πικρή γεύση που συνδέεται με την οπισθορινική διαρροή των συνθέσεων εντός της στοματικής κοιλότητας κατά την ενδορινική ή ενδοφθαλμική χορήγηση των συνθέσεων. Ιδιαίτερα αποτελεσματικά έκδοχα που χρησιμοποιούνται στις συνθέσεις της παρούσας εφεύρεσης είναι υπρομελλόζη ως ένας τροποποιητής του ιξώδους και σουκραλόζη ως ένας παράγοντας επικάλυψης γεύσης. Η εφεύρεση παρέχει επίσης μεθόδους αγωγής ή πρόληψης συγκεκριμένων διαταραχών ή συμπτωματική ανακούφιση από αυτές δια χορήγησης των συνθέσεων της εφεύρεσης σε έναν ασθενή π.χ., για τη συμπτωματική ανακούφιση από αλλεργική ρινίτιδα, μία αλλεργική αγγειοκινητική ρινίτιδα ή αλλεργική επιπεφυκίτιδα. Οι συνθέσεις και μέθοδοι της παρούσας εφεύρεσης παρέχουν σημαντική αξία όσον αφορά την αποδοχή, άνεση και συμμόρφωση για τον ασθενή.
Patent CY-1123663-T1 (CY)
Title: Πυριμιδινονες ως αναστολεις τελεστη χια
Inventor: DILGER ANDREW K
IPC: C07D471/18
Filed: 2020-12-04
Abstract: Η παρούσα εφεύρεση παρέχει ενώσεις του Χημικού Τύπου (Ι) ή στερεοϊσομερή, ταυτομερή ή φαρμακευτικώς αποδεκτά άλατα εξ' αυτών, όπου όλες οι μεταβλητές καθορίζονται ως εις το παρόν. Αυτές οι ενώσεις είναι επιλεκτικοί αναστολείς τελεστή Xla ή διπλοί αναστολείς του FXla και της καλλικρεΐνης πλάσματος. Αυτή η εφεύρεση σχετίζεται επίσης και με φαρμακευτικές συνθέσεις που περιλαμβάνουν αυτές τις ενώσεις και με μεθόδους αγωγής θρομβοεμβολικών και/ή φλεγμονωδών διαταραχών χρησιμοποιώντας τις ίδιες.
Patent CY-1123778-T1 (CY)
Title: Πυρρολοβενζοδιαζεπινες και συζευγματα αυτων
Inventor: HOWARD PHILIP WILSON
IPC: A61K47/68
Filed: 2021-02-04
Abstract: Ένωση η οποία έγκειται στην ένωση Α καθώς και άλατα και επιδιαλυτωμένα μόρια αυτής, όπως και συζεύγματα αυτής με παράγοντες δέσμευσης κυττάρων.
Patent HR-P20120647-T1 (HR)
Inventor: CHRISTIAN KEMPF
IPC: F42B8/14
Filed: 2012-08-08
Abstract: Projektil (1) za streljivo za ručno naoru·anje koji ima metalnu jezgru (20), koja je barem djelomično obavijena sa plastičnim omotačem (10), pri čemu metalna jezgra (20) oblikuje osnovicu (22) projektila i sadr·i cilindrični dio (21) blizu osnovice sa sličnim promjerom i unutra®nji cilindrični dio (26) manjeg promjera koji sa njim graniči u smjeru nosa projektila, pri čemu je predviđena radijalna zaustavna izbočina (25) na prijelazu između cilindričnog dijela (21) koji ima sličan promjer i unutarnjeg cilindričnog dijela (26) koji ima manji promjer, pri čemu plastični omotač (10) obavija unutarnji cilindrični dio (26), pri čemu cilindrični dio (14) koji graniči sa cilindričnim dijelom (21) blizu osnovice ima sveukupni promjer koji je barem jednak nominalnom promjeru čahure projektila koja ima kalibar cijevi odgovarajućeg ručnog vatrenog oru·ja, te su predviđena barem dva ·lijeba (23, 24) na unutarnjem cilindričnom dijelu (26), naznačen time da je metalna jezgra (20) oblikovana u jednom komadu, tako da navedeni unutra®nji cilindrični dio (26) koji sa njim graniči u smjeru nosa projektila ima konstantni promjer uzdu· cijele duljine projektila sve do nosa projektila, te da ima manji promjer od promjera cilindričnog dijela (21) uz osnovicu, tako da plastični omotač (10) u potpunosti obavija unutra®nji cilindrični dio (26) i okru·uje nos (11) projektila, te da su ·ljebovi koji se nalaze na unutra®njem cilindričnom dijelu (26) klinasti razdjelni ·ljebovi (23,24), koji su ispunjeni bilo sa materijalom plastičnog omotača (10) ili sa adhezivnim materijalom. Patent sadr·i jo® 5 patentnih zahtjeva.
Patent SI-1345595-T1 (SI)
Title: Ion-strength independent sustained release pharmaceutical formulation
Inventor: GORISSEN HENRICUS R M
IPC: A61K9/20
Filed: 2001-09-28
Abstract: The present invention is related to an optionally coated pharmaceutical hydrophilic gel forming matrix formulation comprising one or more active substances and having a prolonged release of said one or more active substances upon exposure to gastrointestinal fluids, characterized in that said release is substantially ion-strength independent. The invention is further related to a method of preparing this formulation which can be used in the administration of active substances for the treatment of a large number of disorders.
Patent SI-2223688-T1 (SI)
Title: (+)-2-(1-(3-Ethoxy-4-methoxyphenyl)-2-methylsulfonylethyl)-4-acetylaminoisoindoline-1,3-dione: Methods of Using and Compositions Thereof
Inventor: SCHAFER PETER H
IPC: C07D209/00
Filed: 2003-03-20
Abstract: Discussed is stereomerically pure (+)-2-[1-(3-Ethoxy-4-methoxyphenyl)-2-methylsulfonylethyl]-4-acetylaminoisoindoline-1,3-dione, or a pharmaceutically acceptable polymorph, salt, solvate or hydrate thereof, as well as a pharmaceutical composition or single unit dosage form comprising such compound and such compound for use as a medicine.
Patent SI-2200980-T1 (SI)
Title: Amino arylsulfonamide compounds and their use as 5-ht6 ligands field of invention
Inventor: RAMAKRISHNA NIROGI VENKATA SATYA
IPC: A61K31/403
Filed: 2008-05-02
Abstract: The present invention relates to novel amino arylsulfonamide compounds of the formula (I), their derivatives, their stereoisomers, their pharmaceutically acceptable salts and pharmaceutically acceptable compositions containing them: The present invention also relates to a process for the preparation of above said novel compounds, their derivatives, their stereoisomers, their pharmaceutically acceptable salts and pharmaceutically acceptable compositions containing them. The compounds of the invention are useful in the treatment of various disorders that are related to 5-HT6 receptor functions. Specifically, the compounds of this invention are also useful in the treatment of various CNS disorders, hematological disorders, eating disorders, obesity, anxiety, depression, diseases associated with pain, respiratory diseases, gastrointestinal, cardiovascular diseases and cancer.
Patent SI-2870107-T1 (SI)
Title: Method for reducing hexavalent chromium in oxidic solids
Inventor: ORTMANN RAINER
IPC: C22B34/00
Filed: 2013-07-05
Abstract: A method for reducing hexavalent chromium in oxidic solids containing the steps: a) mixing the oxidic solid, containing Cr(VI), with a carbon-containing liquid compound in the range of 20 to 100°C; b) treating the mixture obtained according to a) under a protective atmosphere in an indirectly heated reactor at a temperature of 700°C to 1100°C, particularly preferably at a temperature of 800°C to 1000°C; c) cooling the reaction product obtained according to b) under a protective atmosphere to at least 300°C, preferably to at least 150°C.