Prosecution Insights
Last updated: October 27, 2026

Kaijiang Zhang, USPTO Patent Examiner

Listed by the USPTO as ZHANG, KAIJIANG

Tech Center 1600 • Art Units: 1612 1639 1644 1675 1682 1684

This examiner grants 77% of resolved cases

Analysis

ZHANG, KAIJIANG has resolved 706 cases in Tech Center 1600 and Art Unit 1612. The allowance rate is 77.2%, and the interview lift is 34.3%. The median time to allowance is 992 days. The substantial record combines a high allowance rate with a meaningful interview association, supporting a prosecution approach that integrates direct discussion with technically focused amendments.

The company portfolio includes Fred Hutchinson Cancer Research Center, 10x Genomics Inc., and Grail LLC. The leading firms are BROWN RUDNICK LLP, CHOATE, HALL & STEWART LLP, and Clark+Elbing LLP. These names reflect relevant biotechnology applicants and counsel whose filings may offer useful precedents for work in the art unit.

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

Performance Statistics

77.2%
Allow Rate
+17.2% vs TC avg
737
Total Applications
+34.3%
Interview Lift
992
Avg Prosecution Days
Based on 706 resolved cases, 2023–2026

Rejection Statute Breakdown

7.8%
§101 Eligibility
21.0%
§102 Novelty
29.1%
§103 Obviousness
27.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18323091 METHODS FOR PRINTING CELLS AND GENERATING ARRAYS OF BARCODED CELLS Non-Final OA 10x Genomics, Inc.
17820560 METHODS FOR PROCESSING NUCLEIC ACID MOLECULES Final Rejection 10x Genomics, Inc.
18187449 METHODS AND COMPOSITIONS FOR QUANTITATION OF PROTEINS AND RNA Non-Final OA Becton, Dickinson and Company
17963119 MULTI-SEQUENCE CAPTURE SYSTEM Non-Final OA University of Utah Research Foundation
17856923 CHEMICAL METHODS FOR PRODUCING TAGGED NUCLEOTIDES Non-Final OA ROCHE SEQUENCING SOLUTIONS, INC.
17924425 POLYNUCLEOTIDE ARRAYS Final Rejection Oxford University Innovation Limited
17978130 SEQUENCING KITS Non-Final OA ILLUMINA, INC.

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Frequently Asked Questions

What is examiner Kaijiang Zhang's allowance rate?

77.2% of resolved applications examined by Kaijiang Zhang were allowed (706 resolved cases), compared with 40.7% across Art Unit 1612 over the last five years.

Does an interview help with examiner Kaijiang Zhang?

This examiner's interview lift is +34.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kaijiang Zhang take to allow a patent?

Applications allowed by Kaijiang Zhang took 992 days on average from filing to allowance.

Which art unit does examiner Kaijiang Zhang work in?

Kaijiang Zhang examines applications in Art Unit 1612 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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