There are 25 other file types using
the PAT file extension!
.pat - AutoCAD hatch pattern
.pat - CorelDRAW vector pattern
.pat - MultiMate document
.pat - WarHack Warcraft 2 utility data
.pat - File Investigator pattern
.pat - Patch
.pat - Photostyler hatch patterns
.pat - Polygon Attribute table file
.pat - Corel PaintShop Pro pattern image
.pat - Gravis Ultrasound patch
.pat - Pattern Maker Cross-Stitch pattern
.pat - Microsoft Train Simulator track path
.pat - PCStitch pattern
.pat - Vector pattern
.pat - Synology DiskStation DSM update
.pat - Adobe Photoshop patterns
.pat - PatternSmith cutting pattern file
.pat - Palace Server Rooms configuration
.pat - Kega Fusion game cheat
.pat - Black & White II paths data
.pat - Cadterns Sloper File
.pat - Orchida Embroidery System embroidery design
.pat - Gimp pattern file
.pat - Extensible Storage Engine (ESE) patch file
.pat - ENVI surface view path data
PAT file extension - ArcView geocoding pattern recognition data
What is pat file? How to open pat files?
File type specification:
The pat file extension is also related to ESRI ArcView GIS software and used for files that contain geocoding pattern recognition data. Some sort of pattern.
Same extension is also used for ArcInfo Coverage files that contain polygon coverages. Same extension but different file.
The default software associated to open pat file:
ArcGIS for Desktop Basic (ArcView) 
Company or developer:
Esri
ArcGIS for Desktop Basic (formerly known as ArcView) is GIS (geographic information system) application used to visualizing, managing, creating, and analyzing geographic data.
ArcGIS for Desktop Basic is a part of the ArcGIS Desktop. ArcGIS for Desktop Basic supports creation of interactive maps, spatial analysis, GIS deployment, map viewing and navigation, map printing etc.
List of recommended software applications associated to the .pat file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open pat file, edit pat file, convert pat file, view pat file, play pat file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with pat file - ArcView geocoding pattern recognition data
Click on the software link for more information about ArcGIS for Desktop Basic (ArcView). ArcGIS for Desktop Basic (ArcView) uses pat file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
Microsoft Windows:
Main software associated with pat file by default:
ArcGIS for Desktop Basic (ArcView)
Other suggested software:
ArcInfo
