Prosecution Insights
Last updated: May 29, 2026

Hangzhou Qihan Biotechnology Co. Ltd.

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready

Portfolio Summary

2
Total Pending OAs
0
Non-Final OAs
2
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
0
Due this week
2
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.

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

Rejection Statute Mix

BucketCases
§112 only1 (50%)
No statute on record1 (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
NOBLE, MARCIA STEPHENS 1 67.0% +40.2%
BATES, KEENAN ALEXANDER 1 46.3% +70.8%

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
17790797 METHODS AND COMPOSITIONS FOR PRODUCTION OF XENOGENEIC ISLET CELLS AND TREATMENT OF INSULIN-RESISTANT OR -DEFICIENT CONDITIONS WITH THE SAME NOBLE, MARCIA STEPHENS 9d
17611838 CELLS, TISSUES, ORGANS, AND/OR ANIMALS HAVING ONE OR MORE MODIFIED GENES FOR ENHANCED XENOGRAFT SURVIVAL AND/OR TOLERANCE BATES, KEENAN ALEXANDER 27d

Top Art Units

Art UnitApps
1632 1
1631 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
17790797 METHODS AND COMPOSITIONS FOR PRODUCTION OF XENOGENEIC ISLET CELLS AND TREATMENT OF INSULIN-RESISTANT OR -DEFICIENT CONDITIONS WITH THE SAME NOBLE, MARCIA STEPHENS 1632 §112 Final Rejection 9d Pending Jul 05, 2022
17611838 CELLS, TISSUES, ORGANS, AND/OR ANIMALS HAVING ONE OR MORE MODIFIED GENES FOR ENHANCED XENOGRAFT SURVIVAL AND/OR TOLERANCE BATES, KEENAN ALEXANDER 1631 Other Final Rejection 27d Pending Nov 16, 2021

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