Prosecution Insights
Last updated: October 04, 2026

Bio-Rad Laboratories Inc.

Technology area: Biotechnology & Pharmaceuticals

24 pending office actions • 13 art units • 23 examiners • 0 of 24 (0%) have an AI response strategy ready • 29 patents granted in the last 365 days

Analysis

Bio-Rad Laboratories Inc. has 23 pending office actions in the Biotechnology & Pharmaceuticals technology area. These actions are spread across 22 distinct examiners and 13 distinct art units. ZHANG, KAIJIANG is the busiest examiner, currently managing 2 pending office actions. With 22 distinct examiners for 23 pending actions, the count of examiners is close to the total number of actions.

The involvement of 13 distinct art units indicates technical range within the company's biotechnology and pharmaceutical filings. The busiest examiner pending count of 2 shows that no single examiner is overwhelmed by the company's workload of 23 actions. ZHANG, KAIJIANG handles 2 of the pending office actions, while the other actions are distributed among the remaining distinct examiners. This distribution provides a diversified prosecution environment across 13 distinct art units. The presence of 22 distinct examiners requires the company to manage many individual examination styles. This structure suggests that the company's biotechnology innovations are being evaluated across the technical expertise of the patent office. ZHANG, KAIJIANG is the busiest examiner for these 23 pending office actions.

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

Portfolio Summary

24
Total Pending OAs
22
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 8 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

4
Overdue
0
Due this week
1
Due this month
3
Due in next 60 days
0
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. 8 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (4)Due ≤ 30 days (1)Due ≤ 60 days (3)

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.

12
Hard (50%)
10
Medium (42%)
2
Easy (8%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only2 (8%)
§101 + other1 (4%)
§103 only3 (12%)
§102 only2 (8%)
§112 only1 (4%)
Double-patenting only1 (4%)
Double-patenting + other5 (21%)
Multi-statute (no §101)9 (38%)

Industry Mix

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

13
Life Sciences
54% of docket
1
Information Tech
4% of docket
1
Communications
4% of docket
1
Semiconductors
4% of docket
2
Mechanical / Eng
8% of docket
6
Business / Other
25% 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.

240 h
Manual time on pending OAs
48 h
Time saved (low, 20%)
84 h
Time saved (mid, 35%)
2.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ZHANG, KAIJIANG 2 77.1% +34.4%
MEINECKE DIAZ, SUSANNA M 1 30.7% +20.5%
NAZRUL, SHAHBAZ 1 89.7% +5.8%
SANGHERA, STEVEN G.S. 1 30.8% +30.4%
AYUB, HINA F 1 84.9% +17.4%
TARKO, ASMAMAW G 1 72.7% +9.0%
PRIEST, AARON A 1 61.3% +25.7%
LYLE, SOPHIA YUAN 1 57.2% +56.7%
HOPPE, EMMA RUTH 1 42.1% +56.8%
SUN, CAITLYN MINGYUN 1 63.5% +11.9%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18943873 OPTICAL BLACK PIXEL REFERENCE TO REMOVE IMAGE BIAS NOISE FOR WESTERN BLOT IMAGING NAZRUL, SHAHBAZ 33d
18841353 WIDE-SPECTRUM ANALYSIS SYSTEM AYUB, HINA F —

Hard Cases (12)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18785390 ADJUSTABLE DIGITAL MICROSCOPE DISPLAY TARKO, ASMAMAW G 183d overdue
17729760 SYSTEM AND METHOD FOR ISOLATING AND ANALYZING CELLS BUNKER, AMY M 46d overdue
18594870 IMAGING OF STAIN-FREE FLUORESCENCE ON WESTERN BLOT MEMBRANES WITH EXCITATION BY EPI ILLUMINATION WITH UV LEDs SUN, CAITLYN MINGYUN 9d overdue
18203424 METHODS AND HYDROGEL COMPOSITIONS FOR PARTITIONING BIOLOGICAL SAMPLES BELLAH, JEFFREY LAWRENCE 8d overdue
18195048 CELL CAPTURE SYSTEM AND METHOD OF USE FISHER, BRITTANY I 41d
17466309 DISTINGUISHING RARE VARIATIONS IN A NUCLEIC ACID SEQUENCE FROM A SAMPLE YU, TIAN NMN 47d
18872026 CLOUD-BASED QUALITY CONTROL DATA MANAGEMENT MEINECKE DIAZ, SUSANNA M —
18845143 SYSTEM AND METHOD FOR DYNAMICALLY ADJUSTING ANALYTICAL PRECISION IN CLINICAL DIAGNOSTIC PROCESSES SANGHERA, STEVEN G.S. —

Interview Candidates (9)

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 8 ordered by deadline are shown.

App #TitleExaminerDue in
18594870 IMAGING OF STAIN-FREE FLUORESCENCE ON WESTERN BLOT MEMBRANES WITH EXCITATION BY EPI ILLUMINATION WITH UV LEDs SUN, CAITLYN MINGYUN 9d overdue
19361820 SANDWICH ASSAYS IN DROPLETS ZHANG, KAIJIANG —
19361770 COMPOSITIONS AND METHODS FOR MOLECULAR LABELING ZHANG, KAIJIANG —
18872026 CLOUD-BASED QUALITY CONTROL DATA MANAGEMENT MEINECKE DIAZ, SUSANNA M —
18845143 SYSTEM AND METHOD FOR DYNAMICALLY ADJUSTING ANALYTICAL PRECISION IN CLINICAL DIAGNOSTIC PROCESSES SANGHERA, STEVEN G.S. —
18841353 WIDE-SPECTRUM ANALYSIS SYSTEM AYUB, HINA F —
18761103 AMPLIFICATION REPORTER WITH BASE-PAIRING OLIGOMERS PRIEST, AARON A —
18630002 LATERAL FLOW PUMP HOUSING LYLE, SOPHIA YUAN —

Top Art Units

Art UnitApps
1684 3
1683 3
1681 2
3625 1
2638 1
3684 1
2877 1
2482 1
1795 1
1675 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19361820 SANDWICH ASSAYS IN DROPLETS ZHANG, KAIJIANG 1684 §102Other Non-Final OA — Pending Oct 17, 2025
19361770 COMPOSITIONS AND METHODS FOR MOLECULAR LABELING ZHANG, KAIJIANG 1684 §102Other Non-Final OA — Pending Oct 17, 2025
18872026 CLOUD-BASED QUALITY CONTROL DATA MANAGEMENT MEINECKE DIAZ, SUSANNA M 3625 §101§103 Non-Final OA — Pending Dec 05, 2024
18943873 OPTICAL BLACK PIXEL REFERENCE TO REMOVE IMAGE BIAS NOISE FOR WESTERN BLOT IMAGING NAZRUL, SHAHBAZ 2638 §103 Final Rejection 33d Pending Nov 11, 2024
18845143 SYSTEM AND METHOD FOR DYNAMICALLY ADJUSTING ANALYTICAL PRECISION IN CLINICAL DIAGNOSTIC PROCESSES SANGHERA, STEVEN G.S. 3684 §101 Non-Final OA — Pending Sep 09, 2024
18841353 WIDE-SPECTRUM ANALYSIS SYSTEM AYUB, HINA F 2877 §103 Non-Final OA — Pending Aug 23, 2024
18785390 ADJUSTABLE DIGITAL MICROSCOPE DISPLAY TARKO, ASMAMAW G 2482 §103§112Other Non-Final OA 183d overdue Pending Jul 26, 2024
18761103 AMPLIFICATION REPORTER WITH BASE-PAIRING OLIGOMERS PRIEST, AARON A — §112 Non-Final OA — Pending Jul 01, 2024
18630002 LATERAL FLOW PUMP HOUSING LYLE, SOPHIA YUAN — §102§103§112 Non-Final OA — Pending Apr 09, 2024
18619911 CELL FIXATIVE AGENTS FOR SINGLE CELL SEQUENCING HOPPE, EMMA RUTH — §102§103§112 Non-Final OA — Pending Mar 28, 2024
18594870 IMAGING OF STAIN-FREE FLUORESCENCE ON WESTERN BLOT MEMBRANES WITH EXCITATION BY EPI ILLUMINATION WITH UV LEDs SUN, CAITLYN MINGYUN 1795 §103§112 Non-Final OA 9d overdue Pending Mar 04, 2024
18584590 METHODS AND COMPOSITIONS FOR NUCLEIC ACID ANALYSIS PHAM, KHAI QUYNH TIEN 1675 §102§112DP Non-Final OA — Pending Feb 22, 2024
18431241 SYNTHESIZING BARCODING SEQUENCES UTILIZING PHASE-SHIFT BLOCKS AND USES THEREOF HAVLIN, ROBERT H 1626 §102DP Non-Final OA — Pending Feb 02, 2024
18409586 PROTEIN-NANOPARTICLE CONJUGATE PURIFICATION METHODS KIM, YUNSOO — §102§103DP Non-Final OA — Pending Jan 10, 2024
18403525 SPLIT-CYCLE AND TAPE AMPLIFICATION MUMMERT, STEPHANIE KANE — DP Non-Final OA — Pending Jan 03, 2024
18538076 DIGITAL ANALYSIS OF NUCLEIC ACID MODIFICATION LU, FRANK WEI MIN — §102§112 Non-Final OA — Pending Dec 13, 2023
18519957 EMULSION CHEMISTRY FOR ENCAPSULATED DROPLETS KAPUSHOC, STEPHEN THOMAS 1683 §112DP Non-Final OA — Pending Nov 27, 2023
18242658 SYSTEM AND METHOD FOR LEAKAGE CONTROL IN A PARTICLE CAPTURE SYSTEM CROW, ROBERT THOMAS 1683 §103§112DP Non-Final OA — Pending Sep 06, 2023
18203424 METHODS AND HYDROGEL COMPOSITIONS FOR PARTITIONING BIOLOGICAL SAMPLES BELLAH, JEFFREY LAWRENCE 1683 §102§103§112 Non-Final OA 8d overdue Pending May 30, 2023
18324885 METHOD AND SYSTEM FOR DETECTING REVERSE TRANSCRIPTASE ACTIVITY BY DIGITAL ASSAY KOVACH, KARA NICOLE 1681 §103 Non-Final OA 27d Pending May 26, 2023
18195048 CELL CAPTURE SYSTEM AND METHOD OF USE FISHER, BRITTANY I 1796 §102§103 Non-Final OA 41d Pending May 09, 2023
18189723 METHOD AND SYSTEM FOR SIZING A POPULATION OF NUCLEIC ACID FRAGMENTS USING A DIGITAL ASSAY KALLAL, ROBERT JAMES 1685 §101 Final Rejection — Pending Mar 24, 2023
17729760 SYSTEM AND METHOD FOR ISOLATING AND ANALYZING CELLS BUNKER, AMY M 1684 §102§103§112 Non-Final OA 46d overdue Pending Apr 26, 2022
17466309 DISTINGUISHING RARE VARIATIONS IN A NUCLEIC ACID SEQUENCE FROM A SAMPLE YU, TIAN NMN 1681 §102§103 Non-Final OA 47d Pending Sep 03, 2021

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