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Yes, we have two methods available for this.
1. Save and Continue: http://www.jotform.com/help/97-How-to-Save-Forms-to-Continue-Later
2. Autofill: http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature
The main difference between both methods is that the autofill needs the form to be completed using the same browser/computer and the save and continue method doesn't need that. But, in order to use the save and continue method the form needs to contain multiple pages (because the data is saved when the next button is pressed).
Hope this helps.
Let us know if you've further questions.