Prosecution Insights
Last updated: October 25, 2026

Qingdao Ecopure Filter Co. Ltd.

Technology area: Chemistry & Materials

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days

Analysis

Qingdao Ecopure Filter Co. Ltd. has 2 pending office actions in the Chemistry & Materials technology area. This active prosecution status indicates that the company is currently seeking to secure patent rights for its chemical or material-based technologies. The 2 pending actions represent the current workload for the company's legal team as they interface with the patent office.

The examination of these applications is split between 2 distinct examiners and 2 distinct art units. This means the company's patent strategy must account for the specific requirements and interpretations of different administrative entities. The presence of 2 distinct art units suggests that the company's innovations may involve different specialized areas within the broader Chemistry & Materials field.

KEYWORTH, PETER is the busiest examiner for the portfolio, with 1 busiest examiner pending action currently assigned. This 1 pending action is part of the company's 2 pending office actions. Monitoring the specific preferences and past decisions of this examiner is a critical component of the current prosecution strategy for the company.

Having 2 distinct examiners involved means that the company must be careful to maintain consistency in its technical disclosures and legal arguments. The 2 pending office actions in the Chemistry & Materials area are the primary focus of the company's current efforts to build its patent portfolio and protect its research investments.

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

Portfolio Summary

2
Total Pending OAs
1
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

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

1
Hard (50%)
1
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (50%)
Multi-statute (no §101)1 (50%)

Industry Mix

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

2
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% 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.

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

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KEYWORTH, PETER 1 58.5% +23.8%
KURTZ, BENJAMIN M 1 56.7% +17.7%

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
18496275 WATER FILTER ELEMENT HAVING A REMOVAL AND REPLACEMENT MEMBER KEYWORTH, PETER 22d

Interview Candidates (2)

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 2 ordered by deadline are shown.

App #TitleExaminerDue in
18448694 SELF-LOCKING FILTER CARTRIDGE AND ASSEMBLY KURTZ, BENJAMIN M 6d
18496275 WATER FILTER ELEMENT HAVING A REMOVAL AND REPLACEMENT MEMBER KEYWORTH, PETER 22d

Top Art Units

Art UnitApps
1777 1
1779 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18496275 WATER FILTER ELEMENT HAVING A REMOVAL AND REPLACEMENT MEMBER KEYWORTH, PETER 1777 §103§112 Final Rejection 22d Pending Oct 27, 2023
18448694 SELF-LOCKING FILTER CARTRIDGE AND ASSEMBLY KURTZ, BENJAMIN M 1779 §103 Non-Final OA 6d Pending Aug 11, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Qingdao Ecopure Filter Co. Ltd. have?

Qingdao Ecopure Filter Co. Ltd. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.

Which USPTO examiner handles the most Qingdao Ecopure Filter Co. Ltd. applications?

Peter Keyworth has the most, with 1 of Qingdao Ecopure Filter Co. Ltd.'s pending office actions.

What technology area are Qingdao Ecopure Filter Co. Ltd.'s patent applications in?

Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.

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