Examiner Alexander C. Kollias

Grant ratio: 39.9% (36th percentile in Art Unit 1767 among examiners with at least 20 applications). Average office actions per grant: 3.26. Most common rejection type: §103.

Recently active Last office action in data: August 2026
Grant ratio 39.9%
Average office actions / grant 3.26
Compared with Art unit Very hard
Compared with Work group Very hard
Compared with Technology center Very hard
Compared with USPTO Very hard

Examiner record

Examiner ID
84688
Primary art unit
1767
Work group
1760
Technology center
1700
Applications
1,010
Granted applications
403
Examiner phone
(571) 270-3869

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Peer comparisons

GroupExaminersAverage grant ratioAverage office actions / grant
Art Unit 23 44.7% 2.28
Group 170 51.2% 2.03
Tech Center 1,792 44.3% 2.14
USPTO 16,475 52.7% 1.98

Office actions per application

Average office actions per application 3.22 3,250 office actions across 1,010 applications
Applications with office actions 99.6% 1,006 applications
Office actionsApplicationsShare of applications
No OA observed 4 0.4%
1 OA 200 19.8%
2 OAs 285 28.2%
3 OAs 148 14.7%
4 OAs 172 17.0%
5+ OAs 201 19.9%

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

Grant history

0.0% 25.0% 50.0% 75.0% 100.0% 2008: 2.9% 2008 2009: 22.1% 2009 2010: 34.5% 2010 2011: 30.6% 2011 2012: 45.2% 2012 2013: 33.3% 2013 2014: 35.7% 2014 2015: 28.3% 2015 2016: 28.1% 2016 2017: 48.6% 2017 2018: 40.0% 2018 2019: 56.0% 2019 2020: 48.0% 2020 2021: 74.1% 2021 2022: 62.2% 2022 2023: 65.3% 2023 2024: 63.6% 2024 2025: 24.1% 2025 2026: 0.0% 2026

Recent ratios may be lower while applications remain pending.

Yearly counts
YearApplicationsGrantsGrant rate
20083412.9%
2009681522.1%
2010582034.5%
2011491530.6%
2012733345.2%
2013752533.3%
2014421535.7%
2015531528.3%
2016571628.1%
2017703448.6%
2018502040.0%
2019502856.0%
2020502448.0%
2021544074.1%
2022452862.2%
2023493265.3%
2024553563.6%
202529724.1%
20264900.0%

Rejections by office-action stage

Office-action stageActions observed§101§102§103§112
Action 1 1,006 0.6% 10.0% 71.6% 2.6%
Action 2 806 0.2% 5.2% 79.4% 6.2%
Action 3 521 0.2% 3.8% 83.9% 5.8%
Action 4 373 0.3% 2.1% 88.5% 5.1%
Action 5 201 0.0% 4.5% 84.6% 5.5%
Action 6 139 0.0% 2.9% 87.8% 4.3%
Action 7 85 0.0% 1.2% 89.4% 2.4%
Action 8 49 0.0% 0.0% 91.8% 6.1%
Action 9 24 0.0% 0.0% 95.8% 4.2%
Action 10 18 0.0% 0.0% 88.9% 11.1%

Section 101 rejections

Last 3 years 1.0% 4 of 391 office actions
All years 0.3% 10 of 3,250 office actions
Change +0.7 pts Percentage points

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

By year

0.6%
0.0%
0.7%
1.3%
0.0%
0.0%
2014: Alice
0.0%
0.0%
1.0%
0.0%
0.0%
2019: PEG
0.0%
0.0%
0.0%
0.0%
0.5%
2024: AI examples
1.2%
2025: August memo
0.0%
1.4%

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

PTAB appeals

Matched decisions: 41. Merits outcomes: 28 affirmed, 5 affirmed in part, and 8 reversed.

Full reversal rate
19.5% 8/41 decisions
Full or partial reversal rate
31.7% 13/41 decisions
Median appeal duration
16.6 months
New grounds of rejection
1
Recent decisions
DecisionApplicationOutcomeIssues
Oct. 28, 2025 16/299,363 Affirmed in part §103 · §112
May. 29, 2025 15/300,327 Affirmed §112
Mar. 10, 2025 15/743,009 Affirmed in part N/A
Dec. 6, 2023 17/604,680 Affirmed §103 · §112
Jan. 8, 2021 14/920,044 Affirmed §103
Sep. 5, 2019 13/583,234 Reversed §103
Aug. 6, 2019 13/932,809 Reversed §103
Jun. 27, 2019 14/115,840 Affirmed N/A
Mar. 22, 2019 15/334,038 Affirmed in part §103 · §112
Dec. 11, 2018 12/176,057 Affirmed in part §112
Dec. 6, 2018 13/957,213 Reversed §103
Jul. 11, 2018 14/116,112 Affirmed §103 · §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.

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