Examiner Christopher Buchanan
Examiner Christopher Buchanan appears to be about average relative to their peer examiners. Their lifetime grant ratio is 61.1%, they average 2.65 office actions per granted patent, and their rejection profile is dominated by §103 and meaningful §101 activity.
Difficulty vs AU
About Average
Difficulty vs Group
Very Easy
Difficulty vs TC
About Average
Difficulty vs USPTO
About Average
Average OA / Grant
2.65
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Examiner Details
- Observed Examiner Years
- 17 years (2007-2023)
- Tech Center
- 3600 - Transportation, Electronic Commerce, Construction, Agriculture, Licensing and Review
- Group
- 3620 - Business Methods: Incentive Programs, POS, Inventory, Accounting, Shipping
Metrics
- Applications Evaluated
- 280
- Granted Applications
- 171
- Non-Granted Applications
- 109
- Avg OA / Grant
- 2.65
- Last OA Observed
- April 2023 (38 months ago)
- Art Units Seen
- 3627
Context Comparison
| Scope | Examiners | Lifetime Grant Ratio | Avg OA / Grant |
|---|---|---|---|
| This Examiner | 1 | 61.1% | 2.65 |
| Art Unit | 27 | 43.3% | 2.65 |
| Group | 362 | 27.1% | 2.85 |
| Tech Center | 2,337 | 48.0% | 2.11 |
| USPTO | 16,116 | 54.8% | 1.98 |
Grant Timeline
Shaded region marks the last two observed years, where grant outcomes may lag due to recency.
| Year | Applications | Granted | Grant Rate |
|---|---|---|---|
| 2007 | 2 | 1 | 50.0% |
| 2008 | 28 | 12 | 42.9% |
| 2009 | 20 | 9 | 45.0% |
| 2010 | 17 | 13 | 76.5% |
| 2011 | 15 | 11 | 73.3% |
| 2012 | 17 | 10 | 58.8% |
| 2013 | 11 | 7 | 63.6% |
| 2014 | 15 | 7 | 46.7% |
| 2015 | 15 | 8 | 53.3% |
| 2016 | 20 | 8 | 40.0% |
| 2017 | 15 | 9 | 60.0% |
| 2018 | 26 | 17 | 65.4% |
| 2019 | 17 | 11 | 64.7% |
| 2020 | 25 | 19 | 76.0% |
| 2021 | 15 | 13 | 86.7% |
| 2022 | 16 | 13 | 81.3% |
| 2023 | 6 | 3 | 50.0% |
| No observed data after 2023; examiner may have gone inactive or moved out of examining work. | |||
171 family-cache-validated grants; 0 OA-only grant signals.
Rejection Timeline
| OA # | Office Actions | § 101 Percentage | § 102 Percentage | § 103 Percentage | § 112 Percentage |
|---|---|---|---|---|---|
| 1 | 285 | 4.9% | 2.5% | 88.1% | 1.4% |
| 2 | 178 | 18.5% | 3.4% | 74.7% | 0.6% |
| 3 | 107 | 26.2% | 0.9% | 71.0% | 0.0% |
| 4 | 70 | 31.4% | 0.0% | 65.7% | 0.0% |
| 5 | 39 | 23.1% | 0.0% | 74.4% | 0.0% |
| 6 | 31 | 38.7% | 0.0% | 61.3% | 0.0% |
| 7 | 14 | 42.9% | 7.1% | 42.9% | 7.1% |
| 8 | 11 | 54.5% | 0.0% | 45.5% | 0.0% |
| 9 | 7 | 71.4% | 0.0% | 28.6% | 0.0% |
| 10 | 5 | 40.0% | 0.0% | 60.0% | 0.0% |
§ 101 Yearly Trend
2014: Alice
2019: PEG
Each bar shows the share of this examiner's observed office actions in that year that included a § 101 rejection.