Prosecution Insights
Last updated: August 17, 2026

Guardant Health Inc.

21 pending office actions • 9 art units • 18 examiners • 0 of 21 (0%) have an AI response strategy ready • 27 patents granted in the last 365 days

Portfolio Summary

21
Total Pending OAs
14
Non-Final OAs
5
Final Rejections
2
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.

3
Overdue
0
Due this week
4
Due this month
0
Due in next 60 days
1
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 (3)Due ≤ 30 days (4)Due later (1)

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.

15
Hard (71%)
4
Medium (19%)
2
Easy (10%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only2 (10%)
§101 + other11 (52%)
§103 only4 (19%)
§112 only1 (5%)
Double-patenting only1 (5%)
Multi-statute (no §101)2 (10%)

Industry Mix

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

14
Life Sciences
67% of docket
1
Information Tech
5% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
3
Mechanical / Eng
14% of docket
3
Business / Other
14% 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.

210 h
Manual time on pending OAs
42 h
Time saved (low, 20%)
74 h
Time saved (mid, 35%)
1.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
GRAY, JESSICA 2 0.0% +0.0%
SALMON, KATHERINE D 2 42.6% +38.0%
WOITACH, JOSEPH T 2 50.1% +27.6%
NGUYEN, HIEP VAN 1 55.2% +29.5%
RUIZ, ANGELICA 1 83.1% +14.5%
BROWN, MINDY G 1 52.4% +47.5%
KHATTAR, RAJESH 1 36.2% +34.8%
CHUNDURU, SURYAPRABHA 1 53.4% +17.5%
YU, TIAN NMN 1 55.3% +18.7%
KIM, YOUNG J 1 64.8% +18.0%

Hard Cases (15)

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
15431395 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 30d overdue
17000010 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 23d overdue
16557931 METHODS AND SYSTEMS FOR DETECTING CONTAMINATION BETWEEN SAMPLES SCHULTZHAUS, JANNA NICOLE 8d
18152042 METHODS OF DETECTING GENOMIC REARRANGEMENTS USING CELL FREE NUCLEIC ACIDS GRAY, JESSICA 27d
17135826 METHODS AND SYSTEMS FOR ANALYSIS OF CTCF BINDING REGIONS IN CELL-FREE DNA BAILEY, STEVEN WILLIAM 28d
17823915 DATA REPOSITORY, SYSTEM, AND METHOD FOR COHORT SELECTION REYES, REGINALD R 69d
19342153 DATA PROCESSING ABSTRACTION FOR HIGH PERFORMANCE COMPUTING SYSTEMS RUIZ, ANGELICA
18920396 GENOMIC AND METHYLATION BIOMARKERS FOR DETERMINING PATIENT RISK OF HEART DISEASE AND NOVEL GENOMIC AND EPIGENOMIC DRUG TARGETS TO DECREASE RISK OF HEART DISEASE AND/OR IMPROVE PATIENT OUTCOME AFTER MYOCARDIAL INFARCTION OR CARDIAC INJURY KHATTAR, RAJESH

Interview Candidates (11)

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
19018456 METHODS FOR EARLY DETECTION OF CANCER BROWN, MINDY G 37d overdue
15431395 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 30d overdue
17000010 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 23d overdue
17489677 METHODS AND SYSTEMS TO IMPROVE THE SIGNAL TO NOISE RATIO OF DNA METHYLATION PARTITIONING ASSAYS SALMON, KATHERINE D 8d
19540253 DATABASE FOR THERAPEUTIC INTERVENTIONS NGUYEN, HIEP VAN
19342153 DATA PROCESSING ABSTRACTION FOR HIGH PERFORMANCE COMPUTING SYSTEMS RUIZ, ANGELICA
18920396 GENOMIC AND METHYLATION BIOMARKERS FOR DETERMINING PATIENT RISK OF HEART DISEASE AND NOVEL GENOMIC AND EPIGENOMIC DRUG TARGETS TO DECREASE RISK OF HEART DISEASE AND/OR IMPROVE PATIENT OUTCOME AFTER MYOCARDIAL INFARCTION OR CARDIAC INJURY KHATTAR, RAJESH
18661147 METHODS OF ANALYSIS OF METHYLATED DNA BINDING PROTEINS CHUNDURU, SURYAPRABHA

Top Art Units

Art UnitApps
1682 5
1687 4
3684 2
1681 2
3686 1
2154 1
1683 1
1686 1
1685 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19540253 DATABASE FOR THERAPEUTIC INTERVENTIONS NGUYEN, HIEP VAN 3686 DP Final Rejection Pending Feb 13, 2026
19342153 DATA PROCESSING ABSTRACTION FOR HIGH PERFORMANCE COMPUTING SYSTEMS RUIZ, ANGELICA 2154 §102§103 Non-Final OA Pending Sep 26, 2025
19018456 METHODS FOR EARLY DETECTION OF CANCER BROWN, MINDY G 1683 §103 Non-Final OA 37d overdue Pending Jan 13, 2025
18920396 GENOMIC AND METHYLATION BIOMARKERS FOR DETERMINING PATIENT RISK OF HEART DISEASE AND NOVEL GENOMIC AND EPIGENOMIC DRUG TARGETS TO DECREASE RISK OF HEART DISEASE AND/OR IMPROVE PATIENT OUTCOME AFTER MYOCARDIAL INFARCTION OR CARDIAC INJURY KHATTAR, RAJESH 3684 §101§103§112 Final Rejection Pending Oct 18, 2024
18661147 METHODS OF ANALYSIS OF METHYLATED DNA BINDING PROTEINS CHUNDURU, SURYAPRABHA §102§112 Non-Final OA Pending May 10, 2024
18620056 METHODS FOR EARLY DETECTION OF CANCER YU, TIAN NMN 1681 §103 Non-Final OA Pending Mar 28, 2024
18447749 METHODS AND COMPOSITIONS FOR DETECTING NUCLEIC ACID VARIANTS KIM, YOUNG J 1681 §112 Non-Final OA Pending Aug 10, 2023
18339126 DETECTION OF EPIGENETIC STATUS USING SEQUENCE-SPECIFIC DEGRADATION GRAY, JESSICA 1682 §101§102§103§112DP Non-Final OA Pending Jun 21, 2023
18314736 DETECTING DEGRADATION BASED ON STRAND BIAS LUO, JAMMY NMN §101§103 Non-Final OA Pending May 09, 2023
18172734 METHODS AND SYSTEMS FOR PREDICTING AN ORIGIN OF A VARIANT LI, SUN M §101 Non-Final OA Pending Feb 22, 2023
18152042 METHODS OF DETECTING GENOMIC REARRANGEMENTS USING CELL FREE NUCLEIC ACIDS GRAY, JESSICA 1682 §101§103 Non-Final OA 27d Pending Jan 09, 2023
18050855 METHODS AND SYSTEMS FOR IMPROVING PATIENT MONITORING AFTER SURGERY SALMON, KATHERINE D 1682 §103 Non-Final OA Pending Oct 28, 2022
17823915 DATA REPOSITORY, SYSTEM, AND METHOD FOR COHORT SELECTION REYES, REGINALD R 3684 §101 Non-Final OA 69d Pending Aug 31, 2022
17687536 METHODS AND RELATED ASPECTS FOR ANALYZING MOLECULAR RESPONSE BUCHANAN, BAILEY CHEYENNE 1682 §101§103§112 Final Rejection Pending Mar 04, 2022
17489677 METHODS AND SYSTEMS TO IMPROVE THE SIGNAL TO NOISE RATIO OF DNA METHYLATION PARTITIONING ASSAYS SALMON, KATHERINE D 1682 §103 Non-Final OA 8d Pending Sep 29, 2021
17459743 COMPUTATIONAL DETECTION OF COPY NUMBER VARIATION AT A LOCUS IN THE ABSENCE OF DIRECT MEASUREMENT OF THE LOCUS ANDERSON-FEARS, KEENAN NEIL 1687 §101§112 Non-Final OA Pending Aug 27, 2021
17175425 METHODS AND SYSTEMS FOR DETERMINING FUSION EVENTS SMITH, EMILIE ALINE 1686 §101§112 Non-Final OA Pending Feb 12, 2021
17135826 METHODS AND SYSTEMS FOR ANALYSIS OF CTCF BINDING REGIONS IN CELL-FREE DNA BAILEY, STEVEN WILLIAM 1687 §101§103 Final Rejection 28d Pending Dec 28, 2020
17000010 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 1687 §101§103Other Final Rejection 23d overdue Pending Aug 21, 2020
16557931 METHODS AND SYSTEMS FOR DETECTING CONTAMINATION BETWEEN SAMPLES SCHULTZHAUS, JANNA NICOLE 1685 §101§103§112 Non-Final OA 8d Pending Aug 30, 2019
15431395 DETECTION AND TREATMENT OF DISEASE EXHIBITING DISEASE CELL HETEROGENEITY AND SYSTEMS AND METHODS FOR COMMUNICATING TEST RESULTS WOITACH, JOSEPH T 1687 §101§112 Non-Final OA 30d overdue Pending Feb 13, 2017

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