> For the complete documentation index, see [llms.txt](https://chembl.gitbook.io/surechembl/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chembl.gitbook.io/surechembl/text-search/simple-patent-query-overview.md).

# Simple patent query overview

The patent query field can be used for performing a simple freestyle text search or a more complex Solr query search.<br>

<figure><img src="/files/LeBbJNQR5ng1FVIpgIvc" alt=""><figcaption></figcaption></figure>

&#x20;**Note:** *See also* [*Complex Solr search*](/surechembl/text-search/complex-solr-search.md) *for a more advanced query*

The simple freestyle text search provides a way to quickly create a search criteria by entering text that will be searched against the full text of all available patent databases as well as the following bibliographic information: publication number, application number, application dates, priority data, priority dates, IPCR, ECLA or ICO, US classification, assignee or applicant, inventor, and agent.

**Note:** *The default operator in SureChEMBL is* **AND***. If you provide separate terms without an operator (AND, OR, or NOT) between them, SureChEMBL assumes that you are interested in those documents that contain all the listed terms.*