Filtering by patent fields

Information in patent documents is organized into standardized sections called patent fields. Fielded search focuses on specific patent fields, such as Title or Abstract, to locate the sentences or phrases with the same grammatical structure as the query.

There are the following kinds of patent fields:

Text fields, such as Title, Abstract, Claims, Detailed Description, Drawing, Background Summary
Bibliographic fields, such as Publication Number, Assignee, and Publication Date

Entering a patent search filtered by patent fields

The query box interprets the following words as operators if they are enclosed in angle brackets: <AND>, <OR>, <NOT>, <NEAR>, <WITH>, and <IN>.

To enter a fielded query

Under I want to, click Analyze technology, Analyze companies, or Search patents.

In the query box, type your query as a sentence, a question, or a phrase (up to 4096 characters).

Click All available text fields to display a list of fields, and then select the patent field to be searched by the query.

When this option is set to All available text fields, the search targets all nonbibliographic patent fields.

(Optional) To specify additional patent fields that further focus your search, do the following:

Click Add Filter, click All available text fields, and then select a patent field from the list.

If you select either an Assignee field, a Date field, or a Patent Class field, a link appears at the right of the list. Click the link to open a dialog box that provides support for specifying this patent field.

To manage assignee groups (used in the Assignee field), click Manage Assignee Groups on the toolbar.

Type a search string (up to 4096 characters) in the Filter box. Click ? to display an example next to the filter list to show the correct format for typing search criteria.

For information about typing in name fields, see Entering name fields.

To add more patent fields, click Add Filter, and then repeat step 4.

To remove the last patent field in the list, click Remove Patent Field.

Click Find or Analyze to start your search.