Prosecution Insights
Last updated: October 25, 2026

Mks Inc.

Technology areas: Chemistry & Materials • Semiconductors, Circuits & Optics • Medical Devices & Mechanical Engineering

5 pending office actions • 5 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days

Analysis

Mks Inc. manages 5 pending office actions in the Semiconductors, Circuits & Optics technology area. The portfolio is distributed across 5 distinct examiners and 5 distinct art units. This 1-to-1 ratio of actions to examiners and art units suggests a diverse range of technical subject matter within the semiconductor field. Each of the 5 pending office actions is being evaluated by a unique set of eyes in a unique technical group, which may lead to varying prosecution timelines and requirements.

HANSEN, JONATHAN M is the busiest examiner for the company, currently managing 1 busiest examiner pending action. With 5 distinct art units involved, the company's prosecution strategy requires navigating multiple specialized groups at the patent office. This decentralized approach means that the outcome of 1 action is unlikely to directly influence the others, as they are spread across 5 distinct examiners. For the practitioner, this necessitates a highly individualized approach to each of the 5 pending office actions to account for different examiner perspectives.

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

Portfolio Summary

5
Total Pending OAs
2
Non-Final OAs
3
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 3 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
1
Due in next 60 days
1
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. 3 of the docket's apps have a known mailing date.

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

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.

3
Hard (60%)
2
Medium (40%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (20%)
§103 only2 (40%)
Multi-statute (no §101)2 (40%)

Industry Mix

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

2
Life Sciences
40% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
2
Semiconductors
40% of docket
1
Mechanical / Eng
20% of docket
0
Business / Other
0% 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.

50 h
Manual time on pending OAs
10 h
Time saved (low, 20%)
18 h
Time saved (mid, 35%)
0.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HANSEN, JONATHAN M 1 79.4% +11.5%
RIOS RUSSO, RAUL J 1 87.3% +8.6%
ROST, ANDREW J 1 65.7% +19.9%
LUND, JEFFRIE ROBERT 1 60.6% +29.3%
CHAUDHRI, OMAIR 1 66.3% +22.0%

Hard Cases (3)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
17830232 Light-Enhanced Ozone Wafer Processing System and Method of Use CHAUDHRI, OMAIR 21d
18170964 Method and Apparatus for Integrated Pressure and Flow Controller ROST, ANDREW J 34d
19023750 Arc Analysis Based On Multiple Engineered Arc Detection Sources And State Data RIOS RUSSO, RAUL J —

Interview Candidates (4)

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 4 ordered by deadline are shown.

App #TitleExaminerDue in
17830232 Light-Enhanced Ozone Wafer Processing System and Method of Use CHAUDHRI, OMAIR 21d
18170964 Method and Apparatus for Integrated Pressure and Flow Controller ROST, ANDREW J 34d
17983934 Methods and Systems for Feedback Control in Plasma Processing Using Radical Sensing LUND, JEFFRIE ROBERT 70d
19135276 GAS CONCENTRATION SENSOR AND METHOD OF USING THE SAME HANSEN, JONATHAN M —

Top Art Units

Art UnitApps
2877 1
2858 1
3753 1
1716 1
1711 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19135276 GAS CONCENTRATION SENSOR AND METHOD OF USING THE SAME HANSEN, JONATHAN M 2877 §103 Non-Final OA — Pending Jun 03, 2025
19023750 Arc Analysis Based On Multiple Engineered Arc Detection Sources And State Data RIOS RUSSO, RAUL J 2858 §101§102§103§112 Non-Final OA — Pending Jan 16, 2025
18170964 Method and Apparatus for Integrated Pressure and Flow Controller ROST, ANDREW J 3753 §102§103 Final Rejection 34d Pending Feb 17, 2023
17983934 Methods and Systems for Feedback Control in Plasma Processing Using Radical Sensing LUND, JEFFRIE ROBERT 1716 §103 Final Rejection 70d Pending Nov 09, 2022
17830232 Light-Enhanced Ozone Wafer Processing System and Method of Use CHAUDHRI, OMAIR 1711 §102§103 Final Rejection 21d Pending Jun 01, 2022

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Frequently Asked Questions

How many pending USPTO office actions does Mks Inc. have?

Mks Inc. has 5 pending office actions as of October 2026, spread across 5 art units and 5 examiners.

Which USPTO examiner handles the most Mks Inc. applications?

Jonathan M Hansen has the most, with 1 of Mks Inc.'s pending office actions.

What technology area are Mks Inc.'s patent applications in?

Mostly Semiconductors, Circuits & Optics (USPTO Tech Center 2800), based on where its pending office actions are examined.

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