Prosecution Insights
Last updated: October 25, 2026

Irobot Corporation

Technology areas: Transportation, E-Commerce & Mechanical Systems • Medical Devices & Mechanical Engineering

13 pending office actions • 6 art units • 10 examiners • 0 of 13 (0%) have an AI response strategy ready • 24 patents granted in the last 365 days

Analysis

Irobot Corporation currently manages 15 pending office actions within the Transportation, E-Commerce & Mechanical Systems technology area. These actions are distributed across 7 distinct art units, suggesting that the company's mechanical innovations are concentrated in specific technical fields. The count of 15 pending office actions is handled by 12 distinct examiners, which is fewer than the total number of actions.

CHANG, SUKWOO JAMES is the busiest examiner for the portfolio, overseeing 4 pending office actions. This concentration of 4 actions under one examiner represents a significant portion of the 15 total pending office actions. With 12 distinct examiners and 7 distinct art units, Irobot Corporation faces a mix of concentrated and distributed prosecution. The fact that CHANG, SUKWOO JAMES handles 4 pending office actions suggests a focal point for practitioner attention.

Most of the 12 distinct examiners handle only a single matter, while the busiest examiner manages 4 pending office actions. This distribution across 7 distinct art units requires a strategy that balances the influence of CHANG, SUKWOO JAMES with the diverse requirements of other examiners. Practitioners should note that the 15 pending office actions are not evenly spread, allowing for some consistency in specific technical areas.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

13
Total Pending OAs
9
Non-Final OAs
3
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 4 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
0
Due this week
1
Due this month
3
Due in next 60 days
0
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 4 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Due ≤ 30 days (1)Due ≤ 60 days (3)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

6
Hard (46%)
7
Medium (54%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other2 (15%)
§103 only6 (46%)
§102 only1 (8%)
Multi-statute (no §101)4 (31%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

0
Life Sciences
0% of docket
1
Information Tech
8% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
11
Mechanical / Eng
85% of docket
1
Business / Other
8% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

130 h
Manual time on pending OAs
26 h
Time saved (low, 20%)
46 h
Time saved (mid, 35%)
1.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CHANG, SUKWOO JAMES 4 58.0% +41.8%
NGUYEN, BAO LONG T 1 83.1% +7.2%
HOLMAN, JOHN D 1 60.2% +20.2%
TAN, OLIVER E 1 72.6% +8.8%
HEFLIN, HARRISON JAMES RIEL 1 72.3% +14.4%
PATTON, SPENCER D 1 74.2% +21.1%
HORTON, ANDREW ALAN 1 80.7% +17.8%
ALSOMAIRY, IBRAHIM ABDOALATIF 1 39.4% +5.5%
XIA, XUYANG 1 72.7% +52.4%
ZAWORSKI, JONATHAN R 1 52.4% +26.0%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
19312402 CLEANING PRIORITIZATION FOR MOBILE CLEANING ROBOT NGUYEN, BAO LONG T —

Hard Cases (6)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
17994486 MOBILE CLEANING ROBOT WITH A SPACER CHANG, SUKWOO JAMES 48d
19300202 USER FEEDBACK ON POTENTIAL OBSTACLES AND ERROR CONDITIONS DETECTED BY AUTONOMOUS MOBILE ROBOTS HOLMAN, JOHN D —
19297279 MAPPING STASIS FOR MOBILE CLEANING ROBOT TAN, OLIVER E —
19210223 SYSTEMS AND METHODS FOR DOCK PLACEMENT FOR AN AUTONOMOUS MOBILE ROBOT HEFLIN, HARRISON JAMES RIEL —
19035194 CONTROL OF AUTONOMOUS MOBILE ROBOTS PATTON, SPENCER D —
18970319 BRUSH FOR AUTONOMOUS CLEANING ROBOT HORTON, ANDREW ALAN —

Interview Candidates (10)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
17991071 PROACTIVE MAINTENANCE IN AN AUTONOMOUS MOBILE ROBOT XIA, XUYANG 8d
17994486 MOBILE CLEANING ROBOT WITH A SPACER CHANG, SUKWOO JAMES 48d
18207346 MOBILE CLEANING ROBOT INCLUDING SCRUBBING FEATURES CHANG, SUKWOO JAMES 49d
19300202 USER FEEDBACK ON POTENTIAL OBSTACLES AND ERROR CONDITIONS DETECTED BY AUTONOMOUS MOBILE ROBOTS HOLMAN, JOHN D —
19210223 SYSTEMS AND METHODS FOR DOCK PLACEMENT FOR AN AUTONOMOUS MOBILE ROBOT HEFLIN, HARRISON JAMES RIEL —
19035194 CONTROL OF AUTONOMOUS MOBILE ROBOTS PATTON, SPENCER D —
18970319 BRUSH FOR AUTONOMOUS CLEANING ROBOT HORTON, ANDREW ALAN —
17878411 EVACUATION STATION CHANG, SUKWOO JAMES —

Top Art Units

Art UnitApps
3723 5
3656 2
3667 2
3669 1
3665 1
2143 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19312402 CLEANING PRIORITIZATION FOR MOBILE CLEANING ROBOT NGUYEN, BAO LONG T 3656 §102 Non-Final OA — Pending Aug 28, 2025
19300202 USER FEEDBACK ON POTENTIAL OBSTACLES AND ERROR CONDITIONS DETECTED BY AUTONOMOUS MOBILE ROBOTS HOLMAN, JOHN D 3667 §102§103 Non-Final OA — Pending Aug 14, 2025
19297279 MAPPING STASIS FOR MOBILE CLEANING ROBOT TAN, OLIVER E 3669 §102§103§112Other Non-Final OA — Pending Aug 12, 2025
19210223 SYSTEMS AND METHODS FOR DOCK PLACEMENT FOR AN AUTONOMOUS MOBILE ROBOT HEFLIN, HARRISON JAMES RIEL 3665 §101§103 Non-Final OA — Pending May 16, 2025
19035194 CONTROL OF AUTONOMOUS MOBILE ROBOTS PATTON, SPENCER D 3656 §101§102§103 Non-Final OA — Pending Jan 23, 2025
18970319 BRUSH FOR AUTONOMOUS CLEANING ROBOT HORTON, ANDREW ALAN — §102§103§112 Non-Final OA — Pending Dec 05, 2024
18207346 MOBILE CLEANING ROBOT INCLUDING SCRUBBING FEATURES CHANG, SUKWOO JAMES 3723 §103 Final Rejection 49d Pending Jun 08, 2023
18118825 MAPPING NEGATIVE SPACE FOR AUTONOMOUS MOBILE ROBOT ALSOMAIRY, IBRAHIM ABDOALATIF 3667 §103 Final Rejection 43d Pending Mar 08, 2023
17994486 MOBILE CLEANING ROBOT WITH A SPACER CHANG, SUKWOO JAMES 3723 §103§112 Final Rejection 48d Pending Nov 28, 2022
17991071 PROACTIVE MAINTENANCE IN AN AUTONOMOUS MOBILE ROBOT XIA, XUYANG 2143 §103 Non-Final OA 8d Pending Nov 21, 2022
17878411 EVACUATION STATION CHANG, SUKWOO JAMES 3723 §103 Non-Final OA — Pending Aug 01, 2022
17673386 MAINTENANCE ALERTS FOR AUTONOMOUS CLEANING ROBOTS ZAWORSKI, JONATHAN R 3723 §103 Non-Final OA — Pending Feb 16, 2022
16950226 SYSTEMS AND METHODS FOR SCHEDULING MOBILE ROBOT MISSIONS CHANG, SUKWOO JAMES 3723 §103 Non-Final OA — Pending Nov 17, 2020

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Frequently Asked Questions

How many pending USPTO office actions does Irobot Corporation have?

Irobot Corporation has 13 pending office actions as of October 2026, spread across 6 art units and 10 examiners.

Which USPTO examiner handles the most Irobot Corporation applications?

Sukwoo James Chang has the most, with 4 of Irobot Corporation's pending office actions.

What technology area are Irobot Corporation's patent applications in?

Mostly Transportation, E-Commerce & Mechanical Systems (USPTO Tech Center 3600), based on where its pending office actions are examined.

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