Examiner Seokjin Kim

Grant ratio: 66.3% (24th percentile in Art Unit 2844 among examiners with at least 20 applications). Average office actions per grant: 1.95. Most common rejection type: §103.

Recently active Last office action in data: October 2026
Grant ratio 66.3%
Average office actions / grant 1.95
Compared with Art unit Very hard
Compared with Work group Very hard
Compared with Technology center About average
Compared with USPTO Very easy

Examiner record

Examiner ID
90813
Primary art unit
2844
Work group
2840
Technology center
2800
Applications
591
Granted applications
392
Examiner phone
(571) 272-1487
Supervisor
Alexander H. Taningco
Supervisor phone
(571) 272-8048

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Peer comparisons

GroupExaminersAverage grant ratioAverage office actions / grant
Art Unit 38 70.9% 1.65
Group 233 67.4% 1.60
Tech Center 2,435 61.3% 1.69
USPTO 16,620 51.8% 1.98

Office actions per application

Average office actions per application 2.01 1,188 office actions across 591 applications
Applications with office actions 98.1% 580 applications
Office actionsApplicationsShare of applications
No OA observed 11 1.9%
1 OA 257 43.5%
2 OAs 185 31.3%
3 OAs 66 11.2%
4 OAs 42 7.1%
5+ OAs 30 5.1%

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

Grant history

0.0% 25.0% 50.0% 75.0% 100.0% 2014: 33.3% 2014 2015: 55.6% 2015 2016: 60.0% 2016 2017: 73.5% 2017 2018: 88.3% 2018 2019: 76.2% 2019 2020: 84.6% 2020 2021: 79.2% 2021 2022: 82.8% 2022 2023: 78.6% 2023 2024: 80.7% 2024 2025: 51.0% 2025 2026: 0.0% 2026

Recent ratios may be lower while applications remain pending.

Yearly counts
YearApplicationsGrantsGrant rate
201415533.3%
2015271555.6%
2016503060.0%
2017493673.5%
2018605388.3%
2019423276.2%
2020524484.6%
2021483879.2%
2022292482.8%
2023564478.6%
2024574680.7%
2025492551.0%
20265700.0%

Rejections by office-action stage

Office-action stageActions observed§101§102§103§112
Action 1 580 1.0% 14.7% 71.4% 8.3%
Action 2 323 1.2% 9.6% 83.0% 5.3%
Action 3 138 0.7% 8.7% 82.6% 7.2%
Action 4 72 0.0% 6.9% 87.5% 5.6%
Action 5 30 0.0% 10.0% 83.3% 6.7%
Action 6 18 0.0% 11.1% 83.3% 5.6%
Action 7 9 0.0% 22.2% 66.7% 11.1%
Action 8 8 0.0% 12.5% 87.5% 0.0%
Action 9 3 0.0% 0.0% 100.0% 0.0%
Action 10 3 0.0% 0.0% 100.0% 0.0%

Section 101 rejections

Last 3 years 0.7% 2 of 275 office actions
All years 0.9% 11 of 1,188 office actions
Change -0.2 pts Percentage points

Last 3 years: 2023-10-23–2026-10-23. All years includes every dated office action in the data.

By year

0.0%
2014: Alice
0.0%
0.0%
1.6%
0.9%
2.5%
2019: PEG
1.2%
1.0%
0.0%
0.0%
1.9%
2024: AI examples
0.0%
2025: August memo
0.0%
1.3%

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

PTAB appeals

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

Full reversal rate
0.0% 0/3 decisions
Full or partial reversal rate
0.0% 0/3 decisions
Median appeal duration
13.0 months
New grounds of rejection
0
Recent decisions
DecisionApplicationOutcomeIssues
Jun. 2, 2023 15/840,418 Affirmed N/A
May. 26, 2023 16/919,941 Affirmed §103
Nov. 20, 2018 14/578,198 Affirmed §101

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 Oct. 30, 2026.

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