Derwent World Patents Index

DERWENT WORLD PATENTS INDEX Title Terms © 2000 Thomson. All rights reserved Revised Edition 4 ISBN: 0 901157 23 6 ©© 2000 Thomson Published by Thomson Scientific 14 Great Queen Street, London WC2B 5DF, United Kingdom Visit the Thomson Scientific web site at http://www.thomsonscientific© 2000 Thomson Derwent Published by Derwent Information 14 Great Queen Street, London WC2B 5DF, United Kingdom Visit the Derwent web site at http://www.derwent.com/ Revised Edition 4 published February 2000 ISBN: 0 901157 23 6 (Edition 4 revised) All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, recording, photocopying or otherwise – without express written permission from the copyright owner.com/ Derwent Title Terms Contents Contents Introduction . 1 Alphabetical List of Title Terms . 5 Derwent Title Terms 1 Introduction DERWENT TITLE TERMS Searchable Preferred Forms of Title Words Introduction Derwent Title Terms are used to simplify word searching of Derwent titles, and to optimise the thoroughness of such searches. All given derivatives of a Title Term are collected under a MAIN TERM. The derivatives are called Sub-terms. Whenever either a MAIN TERM or a Sub-term appears in a Derwent title, only the corresponding MAIN TERM is posted to the online file as a Title Term. Example: Searching the Title Term for DESALINATE will capture all records in which desalinate or any of the ten Sub-terms appears in a Derwent title. DESALINATE ¬ MAIN TERM Desalinated Desalinating Desalination Desalinator Desalinators ¬ Sub-terms Desalt Desalted Desalter Desalters Desalting Searching Title Words Both MAIN TERMS and Sub-terms can be searched as Title Words. In addition, any other words not in the Title Terms list but appearing in titles may also be searched as Title Words, the only exceptions being the commonly used Stop Words: AN, AND, ARE, AS, AT, BE, BY, FOR, FROM, HAS, IN, INTO, IS, NOT, OF, ON, OR, THE, THEN, WHEN, WHERE, WHICH 2 Format of the Manual The MAIN TERMS are shown in UPPER CASE and listed in alphabetical order. Sub-terms are in lower case, indented below the corresponding MAIN TERM. The year of introduction of new terms is shown in square brackets [ ]. New terms may be searched via Title Terms from their date of introduction. Prior to that date they may be searched as Title Words. In the example below Determiner introduced in 1991, is searchable as a Title Term from 199101 onwards and prior to that it should be searched as a Title Word. DETERMINE ¬ MAIN TERM Determinable Determinant Determinants Determination Determinations Determined Determiner [1991] ¬ Year of introduction. Determines As from 199101 all occurrences of this sub-term Determining will be posted as the MAIN Determn TERM and will be DETONATE searchable as the Title Term Detonatable Detonated Detonates Detonating Detonation Detonations Detonator Detonators DETOUR [1991] ¬ Year of introduction. DETOXICANT Use of the = sign (effective from Derwent Week 197804) Certain single concept terms consist of two or more parts linked together by an = sign. This allows specific retrieval of multipart terms. Examples are: AND=GATE U=BEAM I=BEAM U=BEND X=RAY U=bends VITAMIN=A U=bent The method for searching these terms varies on each of the online services. On Dialog search ? s port-hole/de On Questel.Orbit search ?/tt “port=hole” On STN search => s by-product/tt Derwent Title Terms 3 Introduction Use of the @ sign (effective from Week 197804) Certain frequently occurring compounds and elements are given an @ sign to indicate the unsubstituted compound or the free or alloyed element. The @ is a part of the search term. Thus PHENOL@ PRODN. refers to the specific compound whereas in HALOGEN-SUBSTD. PHENOL DERIVS. PRODN. the @ sign is not used. Terms which can take the @ sign are listed below: ACETONE COPPER PHOSPHORUS ALCOHOL (i.e. ethanol) ETHANOL PLATINUM ALUMINIUM ETHER (i.e. diethyl ether) POLYETHYLENE ANTIMONY ETHYLENE POLYPROPYLENE ARSENIC FLUORINE POTASSIUM BARIUM GOLD PROPYLENE BENZENE HYDROGEN PYRIDINE BISMUTH IODINE SELENIUM BORON IRON SILICON BROMINE LEAD SILVER OXYGEN LITHIUM SODIUM CADMIUM MAGNESIUM SULPHUR CAESIUM MANGANESE TIN CALCIUM MERCURY TITANIUM CARBON MOLYBDENUM TOLUENE CELLULOSE NAPHTHALENE TUNGSTEN CERIUM NICKEL URANIUM CHLORINE NITROGEN VANADIUM CHROMIUM PALLADIUM ZINC COBALT PHENOL ZIRCONIUM Acronyms The Manual contains some very useful acronyms and abbreviations which can be used to retrieve multiword concepts by means of a single search term, for example MOSFET, IMPATT, CCD, LSI. 4 Chemical Names For storage and retrieval purposes long chemical names are split so that the resulting parts correspond to Title Terms where possible. In compiling this Manual the commoner chemical moieties were kept together and the rarer ones usually split into separate terms. Multiplier prefixes, e.g. MONO, DI and TRI were normally treated as separate terms except in trade names or ring systems. Thus for ‘trifluoromethylpyrimidine’ the relevant search terms are TRI, FLUOROMETHYL and PYRIMIDINE. Polymers Since Week 197804 monomers in titles which refer to a polymer rather than the monomer itself have been converted to the poly... form for online storage and retrieval by addition of an excla- mation mark (!), providing that the poly... term is in the list of Title Terms. For example, polyacrolein can be input as ‘polyacrolein’ or ‘acrolein! polymer’ and searching POLYACROLEIN as a Title Term would retrieve ‘polyacrolein’, ‘acrolein polymer’ and ‘acrolein-styrene copolymer’. When less common polymer abbreviations are used in titles, e.g. PVF, the full form is input as Additional Words, which are stored as Title Terms. Thus a search for POLYVINYL as a Title Term will also retrieve PVF. Searching Abstract Words Words used in the Derwent Alerting abstracts are not text edited against the list of Title Terms - the automatic posting of MAIN TERMS applies only to the Derwent titles. However, when searching the Abstract Words field, this Manual can still be helpful as a guide to spelling and variations. Use of Online Lists and Facilities The Expand, Neighbor or Index online commands can be used to obtain a list of searchable subject words together with the current number of postings. These subject terms may include Title Terms, Title Words and Abstract Words and may therefore include words which are not in this Manual. Unless specified, searching will include all categories of words (i.e. all are in the Basic index) or searching may be restricted to specific fields, e.g. Title Terms. Truncation may be used when appropriate. Title Terms, Title Words and Abstract Words are proximity searchable. A proximity search can specify that two terms must be adjacent or included within a given number of words. This allows specific combinations of terms to be searched within a required context and prevents retrieval of irrelevant references. Further details of these procedures are given in the Online User Manuals.

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