Patent examiner statistics, free for every USPTO examiner.
Allowance rates, difficulty, rejection patterns, interview and RCE effectiveness, and contact details for 11,000+ examiners, computed from USPTO Patent Center (formerly PAIR). Look up the examiner on your next office action.
Examiner lookup
| Examiner | Technology | Difficulty | ||||
|---|---|---|---|---|---|---|
| Frank S. Hou | 1692 | Organic Chemistry: Organosilicon & Organometallic Compounds | 67.0% | Hard | 190 | |
| Jason E. Flick | 3783 | Surgery: Medical & Surgical Instruments & Devices | 88.0% | Average | 195 | |
| Nizal S. Chandrakumar | 1625 | Organic & Medicinal Chemistry: Heterocyclic Drug Compounds | 75.9% | Average | 420 | |
| Dennis H. Pedder | 3612 | Land Vehicles: Bodies, Tops & Fenders | 90.6% | Favorable | 631 | |
| Mohammed S. Alawadi | 3725 | Metal Deforming, Presses & Comminution | 85.5% | Average | 489 | |
| Nathan L. Van Sell | 1783 | Stock Material: Laminates, Coated Articles & Photovoltaic Stock | 58.5% | Very Hard | 246 | |
| Raymond Alejandro | 1752 | Electrochemistry: Batteries, Fuel Cells & Related Apparatus | 87.6% | Average | 347 | |
| Cameron Kenneth Miller | 1731 | Ceramic, Glass & Inorganic Compositions | 75.6% | Average | 274 | |
| Kyle Walraed-Sullivan | 3635 | Static Structures & Building Construction | 76.0% | Average | 346 | |
| Christopher E. Dunay | 2875 | Illumination & Lighting Devices | 90.7% | Average | 514 |
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Every examiner belongs to an art unit inside one of nine USPTO technology centers, and difficulty varies widely between them. Public examiner profiles are rolling out across all nine.
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Examiner statistics are compiled from public USPTO records (Patent Center) for informational purposes only. They describe historical prosecution patterns, are not legal advice, and do not predict outcomes in any specific matter. Consult a licensed patent attorney or agent about your application.