Examiner Jonathan A Sparks

Grant ratio: 55.0% (46th percentile in Art Unit 2459 among examiners with at least 20 applications). Average office actions per grant: 2.90. Most common rejection type: §103.

Appears inactive Last office action in data: September 2024
Grant ratio 55.0%
Average office actions / grant 2.90
Compared with Art unit About average
Compared with Work group Very hard
Compared with Technology center Very hard
Compared with USPTO About average

Examiner record

Examiner ID
92553
Primary art unit
2459
Work group
2450
Technology center
2400
Applications
169
Granted applications
93

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Peer comparisons

GroupExaminersAverage grant ratioAverage office actions / grant
Art Unit 15 43.7% 2.80
Group 210 57.4% 2.41
Tech Center 1,754 58.4% 2.14
USPTO 16,475 52.7% 1.98

Office actions per application

Average office actions per application 3.35 590 office actions across 176 applications
Applications with office actions 100.0% 176 applications
Office actionsApplicationsShare of applications
No OA observed 0 0.0%
1 OA 35 19.9%
2 OAs 44 25.0%
3 OAs 22 12.5%
4 OAs 29 16.5%
5+ OAs 46 26.1%

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

Grant history

0.0% 25.0% 50.0% 75.0% 100.0% 2015: 0.0% 2015 2016: 12.5% 2016 2017: 31.3% 2017 2018: 46.7% 2018 2019: 56.3% 2019 2020: 58.6% 2020 2021: 76.5% 2021 2022: 70.0% 2022 2023: 70.6% 2023 2024: 50.0% 2024

Recent ratios may be lower while applications remain pending.

Yearly counts
YearApplicationsGrantsGrant rate
2015300.0%
20168112.5%
201716531.3%
201815746.7%
2019321856.3%
2020291758.6%
2021171376.5%
2022201470.0%
2023171270.6%
202412650.0%

Rejections by office-action stage

Office-action stageActions observed§101§102§103§112
Action 1 176 2.8% 13.6% 80.7% 1.1%
Action 2 141 1.4% 13.5% 85.1% 0.0%
Action 3 97 1.0% 6.2% 92.8% 0.0%
Action 4 75 1.3% 2.7% 94.7% 1.3%
Action 5 46 0.0% 0.0% 100.0% 0.0%
Action 6 29 0.0% 0.0% 100.0% 0.0%
Action 7 13 0.0% 0.0% 100.0% 0.0%
Action 8 7 0.0% 0.0% 100.0% 0.0%
Action 9 3 0.0% 0.0% 100.0% 0.0%
Action 10 1 0.0% 0.0% 100.0% 0.0%

Section 101 rejections

Last 3 years 10.0% 4 of 40 office actions
All years 1.5% 9 of 590 office actions
Change +8.5 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%
2014: Alice
0.0%
0.0%
0.0%
0.0%
0.0%
2019: PEG
0.0%
1.8%
2.5%
4.5%
2.2%
2024: AI examples
16.0%

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

PTAB appeals

Matched decisions: 15. Merits outcomes: 4 affirmed, 2 affirmed in part, and 9 reversed.

Full reversal rate
60.0% 9/15 decisions
Full or partial reversal rate
73.3% 11/15 decisions
Median appeal duration
10.2 months
New grounds of rejection
1
Recent decisions
DecisionApplicationOutcomeIssues
Nov. 20, 2025 17/731,079 Affirmed N/A
Jul. 25, 2025 17/545,730 Reversed N/A
May. 19, 2025 17/309,768 Reversed §103
Aug. 26, 2024 17/253,732 Affirmed §103
Dec. 30, 2022 14/475,446 Affirmed in part New ground of rejection §102 · §103 · §112
Aug. 2, 2022 15/718,583 Reversed §103
Dec. 13, 2021 15/974,978 Affirmed §101 · §102 · §103
Nov. 16, 2021 14/475,471 Reversed §103
Oct. 15, 2021 14/621,851 Reversed §103
Mar. 1, 2021 14/923,112 Reversed §103
Feb. 23, 2021 14/223,779 Affirmed §101
Dec. 14, 2020 14/549,909 Reversed §103

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.

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