Examiner Elli Peselev

Grant ratio: 13.8% (20th percentile in Art Unit 1623 among examiners with at least 20 applications). Average office actions per grant: 1.88. Most common rejection type: §103.

Appears inactive Last office action in data: March 2024
Grant ratio 13.8%
Average office actions / grant 1.88
Compared with Art unit About average
Compared with Work group Very hard
Compared with Technology center About average
Compared with USPTO About average

Examiner record

Examiner ID
78211
Primary art unit
1623
Work group
1620
Technology center
1600
Applications
58
Granted applications
8

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Peer comparisons

GroupExaminersAverage grant ratioAverage office actions / grant
Art Unit 25 40.5% 1.90
Group 252 46.0% 1.76
Tech Center 1,373 38.0% 2.02
USPTO 16,475 52.7% 1.98

Office actions per application

Average office actions per application 2.26 131 office actions across 58 applications
Applications with office actions 89.7% 52 applications
Office actionsApplicationsShare of applications
No OA observed 6 10.3%
1 OA 13 22.4%
2 OAs 23 39.7%
3 OAs 2 3.4%
4 OAs 7 12.1%
5+ OAs 7 12.1%

Each application is counted once. “5+” includes all higher counts.

Grant history

0.0% 25.0% 50.0% 75.0% 100.0% 2009: 100.0% 2009 2011: 0.0% 2011 2012: 0.0% 2012 2013: 9.1% 2013 2014: 33.3% 2014 2015: 0.0% 2015 2016: 0.0% 2016 2020: 0.0% 2020 2021: 11.1% 2021 2022: 50.0% 2022 2023: 0.0% 2023 2024: 50.0% 2024

Recent ratios may be lower while applications remain pending.

Yearly counts
YearApplicationsGrantsGrant rate
200911100.0%
2011100.0%
2012500.0%
20131119.1%
20143133.3%
20151200.0%
2016400.0%
2020200.0%
20219111.1%
20226350.0%
2023200.0%
20242150.0%

Rejections by office-action stage

Office-action stageActions observed§101§102§103§112
Action 1 52 1.9% 3.8% 65.4% 3.8%
Action 2 39 0.0% 0.0% 56.4% 5.1%
Action 3 16 0.0% 0.0% 68.8% 18.8%
Action 4 14 0.0% 0.0% 50.0% 21.4%
Action 5 7 0.0% 0.0% 42.9% 0.0%
Action 6 3 0.0% 33.3% 0.0% 0.0%

Section 101 rejections

Last 3 years 0.0% 0 of 4 office actions
All years 0.8% 1 of 131 office actions
Change -0.8 pts Percentage points

Last 3 years: 2023-08-28–2026-08-28. All years includes every dated office action in the data.

By year

0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
2014: Alice
0.0%
4.0%
0.0%
0.0%
0.0%
0.0%
0.0%
2024: AI examples
0.0%

Each bar is the percentage of office actions with a §101 rejection.

PTAB appeals

Matched decisions: 5. Merits outcomes: 3 affirmed, 0 affirmed in part, and 2 reversed.

Full reversal rate
40.0% 2/5 decisions
Full or partial reversal rate
40.0% 2/5 decisions
Median appeal duration
29.4 months
New grounds of rejection
0
Recent decisions
DecisionApplicationOutcomeIssues
Mar. 15, 2017 14/051,938 Reversed §103
Dec. 15, 2016 13/547,866 Reversed §103
Jul. 8, 2016 11/289,240 Affirmed §103
May. 19, 2016 12/450,947 Affirmed N/A
Jul. 8, 2011 10/920,297 Affirmed §112

The examiner match uses the last recorded office action before the decision. Reversal rates exclude rehearings, remands, dismissals, and other decisions that did not reach the merits. Data through Aug. 27, 2026.

Job History

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