Compare:Patent Search System

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This tool allows for side-by-side comparison of the patent search systems that have been reviewed by the Intellogist team. To accurately interpret the table, review the category definitions provided in the Quick Table help topic. Also, be aware that the Quick Tables data is current as of the time the Intellogist article for a given search system was last updated, with the exception of data coverage information, which is updated as we are aware of changes. For more information, see our update policies. If you have questions about the data in the tool, please contact us. If you wish to purchase printable copies of comparison tables, see our FAQ.


Select other Patent Search Systems to compare
System DataDialogPRO
Owner NameProQuest LLC
Intellogist ReportDialogPRO
AddressDialog Corporate Headquarters
2250 Perimeter Park Drive
Suite 300
Morrisville North Carolina 27560
United States
Main Telephone+1 800 3 DIALOG
Main Facsimile+1 919 804 6410
WebsiteDialogPRO
Customer Support Email
Tool TypePatent Search Systems, Non-Patent Data Provider, Commercial/Pay Databases
Interface LanguageEnglish
RatingDialogPRO
Overall Rating
  • Currently 2.50 / 5
Rating: 2.5/5 (2 votes)
Data Coverage Rating
  • Currently 2.50 / 5
Rating: 2.5/5 (2 votes)
Document Delivery Rating
  • Currently 3.00 / 5
Rating: 3.0/5 (1 vote)
Import/Export Functions Rating
  • Currently 0.00 / 5
Not Yet Rated
Value Rating
  • Currently 3.00 / 5
Rating: 3.0/5 (2 votes)
Usability Rating
  • Currently 2.00 / 5
Rating: 2.0/5 (2 votes)
Interface Functionality Rating
  • Currently 2.00 / 5
Rating: 2.0/5 (1 vote)
Search Accuracy Rating
  • Currently 3.50 / 5
Rating: 3.5/5 (2 votes)
Company Strength Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (1 vote)
Customer Support Rating
  • Currently 4.00 / 5
Rating: 4.0/5 (1 vote)
Data Coverage DialogPRO
Full Text: Patent Authority CoverageUS, EP, WO/PCT
Full Text: Patent Kind CoverageUS - Published Applications, Granted Patents; EP - Published Applications, Granted Patents; WO/PCT - Published International PCT Applications
Full Text: Number of Authorities3
Partial Text: Patent Authority CoverageINPADOC and DWPI plus special collections for US (IFI Claims), CN, and FR
Partial Text: Patent Text CoveredINPADOC - English Abstracts; DWPI - Derwent Abstracts; CN - English abstracts; FR - French Abstracts; US - English Abstracts and Claims
Bibliographic: Patent Authority CoverageINPADOC and DWPI plus JP and PCT
Machine Pre-Translated Datano No
Full Document Images: Patent Authority CoverageN/A
Representative/Front Page ImagesRepresentative images are available for US and JP, in addition to DWPI images.
Full Patent Drawing SetsFull drawing sets are available for FR.
Corporate Tree Datano No
Non-Patent Coverageyes Yes
Non-Patent SourcesVery extensive non-patent coverage. Major categories include Trademarks, Biotech, News, Consulting, Advertising, Defense, Energy, and Competitive Intelligence. Please see Dialog's product information for further details.
Special IndexingN/A
Update FrequencyMost files are updated weekly. The FR file is closed, and only offers coverage through 2001.
Comments on Missing CoverageKnown gaps exist in INPADOC. As with any patent collection, gaps in coverage may exist but have not been discovered or quantified. The French patent file has now been closed, and only patent documents through 2001 are included.
Family DataDialogPRO
Inpadoc Family Data Coverageyes Yes
Types of Family DefinitionExtended INPADOC families and DWPI families
Derwent WPI Family Coverageyes Yes, and Derwent Patent Citation Index is present as well.
Citation DataDialogPRO
Backward Citationsyes Yes
Forward Citationsno No
Citation Data CoverageEP, WO/PCT, US, JP, BE, DE, ES, FR, GB, NL
Special Features of Citation SearchHyperlinks are provided to backward citations only.
Citation Visualization Toolno No
Legal Status DataDialogPRO
Legal Status Data Includedyes Yes
Legal Status Data SourcesINPADOC and IFI Claims legal status plus separate files for US and FR
Classification DataDialogPRO
Current US Classno No
Original US Classno No
IPC - Rno No
Original IPC data (v1-v7)no No
ECLAno No
Japanese File Index Termsno No
Japanese F-Termsno No
Other National Classification Systemsno No
Search Interface FunctionalityDialogPRO
Search Formyes Yes
Command Line Style Interfaceno No
Index Browsing Featureno No
Allowed OperatorsOnly Boolean operators are available.
TruncationRight unlimited truncation is supported. No internal or left-hand unlimited truncation is supported.
Unique Features of the Search InterfaceSearch interface and available fields vary by subject channel searched. Multiple channel searches are not supported.
Viewing ResultsDialogPRO
Max Hit List SizeUnlimited
Single Representative Imageyes Yes
View Full Document Imageno No
Patent Drawing Thumbnail Overviewno No
Family Sortingno No
Sorting by Other Criteriano No, results can only be displayed in the order determined by the system's relevance ranking.
DeduplicationN/A
On-the-Fly Machine Translationsno No
Keyword Term Highlightingno No
Keyword Term Navigationno No
User-Defined Highlightingno No
Highlighting Feature Supports Proximity Operatorsno No
Save Custom Lists From Search Resultsno No
Combining Custom Patent Listno No
Unique Features of The Record ViewThe record view is very basic.
Search HistoryDialogPRO
Saving Search Queriesno No
Organizing Search Queriesno No
Stored Search Query Expiration TimeN/A
Combining Search Queriesno No
Exporting Search Historiesno No
Alertsno No
Import, Export and DownloadDialogPRO
Import List of Document Numbersno No
Export Document Datano No
Formats for Export DataN/A
Individual Patent Copy Downloadingno No
Bulk Patent Copy Downloadingno No
File Format for Patent Copy DownloadsN/A
AnalysisDialogPRO
Statistical Analysisno No
Graphsno No
Keyword Analysisno No
Customer SupportDialogPRO
Cost/Usage Trackingno No
On-Site Trainingno No
Scheduled Web Seminarsno No
Live Helpyes Yes
Online User Guideyes Yes
PricingDialogPRO
Pricing PolicyFlat fee, scaling based on databases selected.
AssessmentDialogPRO
Primary System StrengthsReasonable cost; modular subscription structure offers flexibility that might appeal to independent searchers or small businesses; quality data sources.
Weaknesses and AnnoyancesOverly simple interface; nearly devoid of advanced or unique features; lack of easily available online help documentation.
Overall AssessmentPossibly appealing to small businesses and cost-conscious consumers. Searchers accustomed to more flexible or comprehensive options may be disappointed.
Company StrengthDialog, backed by ProQuest, is a significant presence in the marketplace. DialogPRO currently feels neglected, and may not be the company's focus.
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