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Searching Basics
Updated: Jul 20, 2004


Contents


Introduction:
Delphion offers you several different methods for searching. The simplest search is done from the QUICK SEARCH box on the Delphion website homepage and only requires you enter a single keyword. On the Quick/Number search page, you can search by single word, simple phrase, or patent number. More complex searches allow you to specify date ranges, Boolean operators, and a host of other search criteria.

All search forms allow you to select which collections to search and, minimally, whether to search front pages or full text including claims. The more advanced search forms offer additional options.

See also:
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Overview of Delphion search pages:
The following describes the types of searches that can be performed from each of the Delphion search pages:
Use this Delphion search page... To...
Quick/Number Find a specific patent by its number or to find patents containing a specific name, word, or phrase.
Boolean Find patents with words or phrases in up to four search fields, using Boolean connectors (AND, OR, AND NOT) to narrow or expand your search.
Advanced Create custom query strings in an open text box or automatically construct complex queries with terms in multiple fields.

See The Basics of Creating and Refining Queries for help on forming complex queries.
Browse Codes Browse through patents by International Patent Classification, US Classification, or by Derwent Manual Classification Codes. Or use keyword searching to find relevant IPCs or US classes.

On the Browse Codes page, the following code lists are also linked for reference:
  • US Maintenance Status Codes
  • INPADOC Legal Status Codes
  • Patent Kind Codes
Derwent Select a specific Derwent search page from the following choices: See The Basics of Creating and Refining Queries for help on forming complex queries.
Prior Art Search for prior art from the following sources:
  • IP.com documents
  • IBM Technical Disclosure Bulletins (TDBs)
IP Listings Search for patents available for licensing.

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Search methods:
The following shows which Delphion search page to use based on your search strategy:
If want to search... Then use...
By single words or phrases in any field Quick Text Search on the Quick/Number search page.
By patent number Patent Number Search on the Quick/Number search page.
By words or phrases using Boolean operators and (optionally) building multiple term queries Boolean Text Search on the Boolean search page.

See The Basics of Creating and Refining Queries for help on forming complex queries.
By building a complex query string using multiple terms ANDed together The Advanced search page.

See The Basics of Creating and Refining Queries for help on forming complex queries.
By International Patent Classification (IPC) International Patent Classification Search on the Browse Codes page.
By United States Classification United States Classification Search on the Browse Codes page.
For Derwent records using Boolean operators Derwent Boolean Text search on the Derwent Boolean Text search page.

See The Basics of Creating and Refining Queries for help on forming complex queries.
Derwent records using advanced text search fields (like Issue Date, Inventor/Author, Assignee, Derwent Title, etc.) Derwent Advanced Search on the Derwent Advanced Text search page.

See The Basics of Creating and Refining Queries for help on forming complex queries.
For Derwent record by patent number By Patent Number Search on the Derwent Patent/Accession Numbers search page.
For Derwent record by accession number By Accession Number Search on the Derwent Patent/Accession Numbers search page.
For IP.com documents IP.com Search on the Prior Art search page.
For IBM Technical Disclosure Bulletins (TDBs) by word or phrase TDB Text Search on the Prior Art search page.
For patents available for licensing IP listing Search on the IP Listings search page.

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Summary of patent collections available at Delphion:
The following summarizes the patent collections available on the Delphion website. See our collection descriptions page for more details on each collection.
Collection Coverage Data
United States Patents — Applications (US) March 2001-present Bibliographic text, full text, full images
United States Patents — Granted (US) 1971-present Bibliographic text, full text, full images
United States Patents — Granted (US) 1790-1971 Full images
Derwent World Patents Index 1963-present English language abstracts, enhanced titles, Derwent images
European Patents — Applications (EP-A) 1979-present Bibliographic text, full images
European Patents — Applications (EP-A) 1987-present Full text
European Patents — Granted (EP-B) 1980-present Bibliographic text, full images
European Patents — Granted (EP-B) 1991-present Full text
German Patents — Applications 1968-present Bibliographic text, first claim, full images

Full text back to 1987
German Patents — Granted 1968-present Bibliographic text, first claim, full images

Full text back to 1987
INPADOC Family and Legal Status 1968-present Bibliographic text, most images
Patent Abstracts of Japan (PAJ) October 1976-present Bibliographic text, representative image
Switzerland (CH) January 15, 1990-present Images
WIPO PCT Publications (WO) 1978-present Bibliographic text, full text, full images

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Cross-collection searching:
Use cross-collection searching to search multiple collections at the same time, with the same query. Allows searching across all major collections including US Applications, US Granted, European Applications (EP-A), European Granted (EP-B), German Applications, German Granted, PCT, PAJ, and INPADOC.

Data from cross-collection full text searches is presented on the Delphion Integrated View, allowing you to read the full content of the patent combined with other value-added data. The collections you have searched show up on the Result Set page under the search field ("Collections Searched").

See also: Enhancing Your Search with the Delphion Integrated View for more information about all of the components of the Delphion Integrated View.


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