What are the series codes for different types of patent applications?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The USPTO assigns different series codes to various types of patent applications: 01/ – 16/: Nonprovisional applications (utility, plant, and reissue) 29/: Design applications 35/: International design applications 60/, 61/, and 62/: Provisional applications 90/: Ex parte reexamination proceedings 95/: Inter partes reexamination proceedings 96/: Supplemental examination proceedings and resulting ex parte reexamination proceedings The MPEP provides a detailed breakdown of series codes for nonprovisional applications from 1925 to the present. For example, ‘Series code 16 is assigned to nonprovisional applications filed from June 2018 to present.’ (MPEP 503) Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Filing Receipt Assigns Application Number and Confirmation MPEP 503 Notification of Application Number and Filing Date MPEP 503 Filing Date for Nonprovisional Applications with or without Claims MPEP 503 Series Codes Assigned to Applications MPEP 503 Permitted Self-Addressed Postcard With Application Number and Date MPEP 503 Filing Receipt Controls Application Number MPEP 503 Permitted Design Patent Filing Date Upon Receipt MPEP 503 Required Filing Requirements for Provisional Applications MPEP 503 Required Preliminary Application Number Not Final MPEP 503 Recommended Filing Receipt Must Be Mailed to Correspondence Address of Record MPEP 503 Other Related FAQs 5 FAQs Collapse How does the USPTO handle applications filed with missing parts? What information is included in a patent filing receipt? How can I get a receipt for items filed with the USPTO? Can a patent application be returned to the applicant after filing? What is a confirmation number in a patent appli...