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.


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System DataEAST
Owner NameUnited States Patent and Trademark Office (USPTO)
Intellogist ReportEAST
AddressPublic Search Facility
600 Dulany St.
Madison East - 1st Floor
Alexandria Virginia 22314
United States
Main Telephone571-272-3275
Main Facsimile
WebsiteEAST
Customer Support Emailusptoinfo@uspto.gov
Tool TypePatent Search Systems, Free Tools
Interface LanguageEnglish
RatingEAST
Overall Rating
  • Currently 4.60 / 5
Rating: 4.6/5 (5 votes)
Data Coverage Rating
  • Currently 3.00 / 5
Rating: 3.0/5 (5 votes)
Document Delivery Rating
  • Currently 3.00 / 5
Rating: 3.0/5 (4 votes)
Import/Export Functions Rating
  • Currently 2.00 / 5
Rating: 2.0/5 (4 votes)
Value Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (3 votes)
Usability Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (4 votes)
Interface Functionality Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (3 votes)
Search Accuracy Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (4 votes)
Company Strength Rating
  • Currently 5.00 / 5
Rating: 5.0/5 (3 votes)
Customer Support Rating
  • Currently 1.50 / 5
Rating: 1.5/5 (4 votes)
Data Coverage EAST
Full Text: Patent Authority CoverageUS
Full Text: Patent Kind CoverageUS - Granted Patents; US - Published Applications
Full Text: Number of Authorities1
Partial Text: Patent Authority CoverageDWPI plus special collections for EP, WO/PCT, JP, CH, DE, FR, GB
Partial Text: Patent Text CoveredDWPI - Derwent Abstracts; EP, WO/PCT, JP, CH, DE, FR, and GB - English Abstracts
Bibliographic: Patent Authority CoverageDWPI plus special collections for AP, AT, AU, BE, CA, CH, CS, CZ, DE, DK, EP, ES, FR, GB, HU, IT, JP, LU, MX, NL, PT, RO, RU, SK, SU, WO/PCT and additional authorities BG, LT, LV, MY, OA, PL, SI, TH
Machine Pre-Translated Datano No
Full Document Images: Patent Authority CoverageAP, AT, AU, BE, BG, CA, CH, CS, CZ, DE, DK, EP, ES, FR, GB, HU, IT, JP, LT, LU, LV, MX, MY, NL, OA, PL, PT, RO, RU, SI, SK, SU, TH, WO/PCT
Representative/Front Page ImagesRepresentative images are available from the DWPI file.
Full Patent Drawing SetsMosaics or full drawing sets are not available separately from the complete document images.
Corporate Tree Datano No
Non-Patent Coverageno No
Non-Patent SourcesN/A
Special Indexingyes Yes, the DWPI file contains special indexing.
Update FrequencyThe US collection is updated on the day of publication for new US documents. Foreign data has a longer update cycle on the order of weeks or months.
Comments on Missing CoverageAs with any patent collection, gaps in coverage may exist but have not been discovered or quantified.
Family DataEAST
Inpadoc Family Data Coverageno No
Types of Family DefinitionDWPI families
Derwent WPI Family Coverageyes Yes
Citation DataEAST
Backward Citationsyes Yes
Forward Citationsyes Yes
Citation Data CoverageUS
Special Features of Citation SearchHyperlinks are provided to forward and backward citations from the record view. Forward and backward citation searching is available from the search interface. A simultaneous forward-and-backward citation search can be run for any document in the hit list.
Citation Visualization Toolno None
Legal Status DataEAST
Legal Status Data Includedno No
Legal Status Data SourcesN/A
Classification DataEAST
Current US Classyes Yes
Original US Classyes Yes
IPC - Ryes Yes
Original IPC data (v1-v7)yes Yes
ECLAyes Yes
Japanese File Index Termsno No
Japanese F-Termsno No
Other National Classification Systemsyes Yes, Locarno
Search Interface FunctionalityEAST
Search Formyes Yes
Command Line Style Interfaceyes Yes
Index Browsing Featureno No
Allowed OperatorsBoolean and proximity operators are available. Proximity operators are fixed-order, and allow users to define the maximum distance between terms. Sentence and paragraph-based proximity operators are also available.
TruncationLimited and unlimited left, right, and internal truncation and SLART are supported. At least one operator can represent 0-or-1 characters.
Unique Features of the Search InterfaceAdvanced command line environment features term-specific data field selection; active folders to the right of the command box retain queries and show hit counts; failed queries are saved and can be edited and re-executed.
Viewing ResultsEAST
Max Hit List SizeUnlimited
Single Representative Imageyes Yes
View Full Document Imageyes Yes, full document images may be viewed side-by-side with electronic text. The customizeable layout allows multiple windows open to the patent image at once.
Patent Drawing Thumbnail Overviewno No
Family Sortingno No, but records in DWPI are already organized by patent family, so this function is not necessary in that file.
Sorting by Other Criteriayes Yes, a result set or work file can be sorted by a wide range of data elements.
Deduplicationyes Yes
On-the-Fly Machine Translationsno No
Keyword Term Highlightingyes Yes
Keyword Term Navigationno No
User-Defined Highlightingyes Yes, monochromatic highlighting is used.
Highlighting Feature Supports Proximity Operatorsyes Yes
Save Custom Lists From Search Resultsyes Yes, saving is done tagging relevant documents, which are automatically copied into the "tagged" folder.
Combining Custom Patent Listyes Yes
Unique Features of The Record ViewHighly customizeable record view layout; keyboard shortcuts may be used for fast image flipping; images may be viewed side-by-side with electronic text, keywords in context; autoflip feature; tools for image viewing include zoom and rotation.
Search HistoryEAST
Saving Search Queriesyes Yes, the system saves queries automatically. The user must save the workspace in order to access these queries in a future session.
Organizing Search Queriesyes Yes, queries may be organized into user-created folders.
Stored Search Query Expiration TimeSaved queries do not expire when saved as part of a workspace.
Combining Search Queriesyes Yes
Exporting Search Historiesyes Yes
Alertsno No
Import, Export and DownloadEAST
Import List of Document Numbersno No
Export Document DataCut and copy paste data.
Formats for Export DataText (email)
Individual Patent Copy Downloadingno No
Bulk Patent Copy Downloadingno No
File Format for Patent Copy DownloadsN/A
AnalysisEAST
Statistical Analysisyes Yes
Graphsno No
Keyword Analysisno No
Customer SupportEAST
Cost/Usage Trackingyes Yes
On-Site Trainingyes Yes
Scheduled Web Seminarsno No
Live Helpyes Yes
Online User Guideyes Yes
PricingEAST
Pricing PolicyFree. However, printing requires a fee. Online print fees of $0.25 per page, or $0.50 per page for color printers, are collected at the workstation via on-line UPWS accounts.
AssessmentEAST
Primary System StrengthsFast image searching; free access to DWPI data.
Weaknesses and AnnoyancesNo data import function or PDF download option; limited and infrequently updated foreign coverage; no analysis features; no relevancy ranking; only available on-site at the USPTO in Alexandria, Virginia.
Overall AssessmentThe service is a very powerful tool, especially for searching US data. Lightning-fast image searching is ideal for searchers in the mechanical arts.
Company StrengthMany of EAST's advantages come from the fact that it is produced by and available at the USPTO. The high-bandwidth connection, free access, and up-to-the-minute US data coverage are all possible because of the USPTO.
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