Prosecution Insights
Last updated: October 25, 2026

3D Ons Inc.

Technology area: Medical Devices & Mechanical Engineering

1 pending office actions • 1 art units • 1 examiners • 0 of 1 (0%) have an AI response strategy ready • 1 patents granted in the last 365 days

Analysis

3D Ons Inc. has 1 pending office action in the Medical Devices & Mechanical Engineering technology area. This action is assigned to 1 distinct art unit, reflecting a singular area of technical interest for the company's current patent activity. The case is being handled by a distinct examiner, meaning the entire active prosecution is concentrated with one individual. This arrangement indicates a highly focused point of contact within the patent office for the company's current filings.

ZHANG, LEI is the busiest examiner for the applicant, with 1 pending office action. As there is only one pending office action in total, this examiner is responsible for the company's entire active prosecution. The involvement of the 1 distinct art unit and the distinct examiner means the applicant's current success depends on this single interaction. There are no other pending matters to provide a baseline for comparison of examiner behavior within this specific portfolio.

For a practitioner, the Medical Devices & Mechanical Engineering focus requires a strategy tailored to the specific standards of the assigned art unit. Since ZHANG, LEI manages the only active case, the applicant should prioritize understanding this examiner's past decisions and preferences. The resolution of the 1 pending office action will define the company's current patent trajectory. This focused environment allows for a dedicated legal effort on a single front rather than managing multiple disparate applications across the patent office.

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

Portfolio Summary

1
Total Pending OAs
0
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

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

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.

0
Hard (0%)
1
Medium (100%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (100%)

Industry Mix

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

0
Life Sciences
0% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
1
Mechanical / Eng
100% 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.

10 h
Manual time on pending OAs
2 h
Time saved (low, 20%)
4 h
Time saved (mid, 35%)
0.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ZHANG, LEI 1 13.3% +100.0%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18336550 METHOD, SERVER, AND COMPUTER PROGRAM FOR PROVIDING SURGERY SIMULATION ZHANG, LEI 70d

Interview Candidates (1)

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 1 ordered by deadline are shown.

App #TitleExaminerDue in
18336550 METHOD, SERVER, AND COMPUTER PROGRAM FOR PROVIDING SURGERY SIMULATION ZHANG, LEI 70d

Top Art Units

Art UnitApps
3798 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18336550 METHOD, SERVER, AND COMPUTER PROGRAM FOR PROVIDING SURGERY SIMULATION ZHANG, LEI 3798 §103 Final Rejection 70d Pending Jun 16, 2023

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Frequently Asked Questions

How many pending USPTO office actions does 3D Ons Inc. have?

3D Ons Inc. has 1 pending office actions as of October 2026, spread across 1 art units and 1 examiners.

Which USPTO examiner handles the most 3D Ons Inc. applications?

Lei Zhang has the most, with 1 of 3D Ons Inc.'s pending office actions.

What technology area are 3D Ons Inc.'s patent applications in?

Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.

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