The Director may delegate the determination of petitions to appropriate Patent and Trademark Office officials for the effective operation of the Office (37 CFR 1.181(g)). A comprehensive list of petitions delegated to the Office of Petitions is set forth in MPEP 1002.02(b). The below list includes information on some of the most common petition types submitted to the Office of Petitions. Expedited examination petitions1. Make special - age or health (37 CFR 1.102(c)(1))2. Prioritized Examination (Track One) (37 CFR 1.102(e))3. Patent Prosecution Highway (PPH) Pilot program Domestic benefit and foreign priority related4. Unintentionally delayed foreign priority claims (37 CFR 1.55(e))5. Unintentionally delayed domestic benefit claims (37 CFR 1.78(c) & (e))6. Restoration of benefit of a provisional application or priority to a foreign application (37 CFR 1.78(b) & 1.55(c)) Place an abandoned application back into pending status7. Withdrawal of abandonment based on failure to receive an office action (37 CFR 1.181)8. Withdrawal of abandonment based on evidence that a reply was timely mailed or filed (37 CFR 1.181)9. Revival based on unintentional delay (37 CFR 1.137(a))10. Revival based on failure to notify the office of a foreign filing after submission of a non-publication request (37 CFR 1.137(f)) Stop or delay an allowed application from issuing11. Withdrawal from issue before payment of the issue fee (37 CFR 1.313(a))12. Withdrawal from issue after payment of the issue fee (37 CFR 1.313(c)(1) & (c)(2))13. Express abandonment after payment of the issue fee (37 CFR 1.313(c)(3))14. Deferment of issuance of patents (37 CFR 1.314) Reconsideration of patent term adjustment15. Petition requesting reconsideration of the patent term adjustment before issuance of the patent (37 CFR 1.705(c))16. Petition requesting reconsideration of the patent term adjustment after issuance of the patent (37 CFR 1.705b)) Petitions relating to maintenance fee payments17. Acceptance of maintenance fee payments based on a refusal to accept and record maintenance fee payment filed prior to the expiration of the patent (37 CFR 1.377(a))18. Acceptance of delayed payment of a maintenance fee after expiration of the patent based on unintentional delay (37 CFR 1.378(b)) Miscellaneous petitions19. Attorney or agent withdrawals (37 CFR 1.36)20. Waiver or suspension of rules (37 CFR 1.183)21. Matters not specifically provided for (37 CFR 1.182)22. General supervisory review by the Director of USPTO of a decision by a director of the technology center (37 CFR 1.181)23. Filing dates of patent applications (37 CFR 1.53 and 1.57)24. Converting patent applications (37 CFR 1.53)25. Petitions for correction of patent application publications (37 CFR 1.221(b))26. Expungement of papers (37 CFR 1.59)27. Petition for retroactive foreign filing license (37 CFR 5.25)