Prosecution Insights
Last updated: October 16, 2026

Cardinal Health Inc.

Technology area: Medical Devices & Mechanical Engineering

126 pending office actions • 33 art units • 104 examiners • 0 of 126 (0%) have an AI response strategy ready • 129 patents granted in the last 365 days

Analysis

Cardinal Health Inc. operates a portfolio in the Medical Devices & Mechanical Engineering technology area with 92 pending office actions. These actions are distributed among 70 distinct examiners, which indicates that some examiners are handling multiple cases for the company. The portfolio is also active across 21 distinct art units, showing a significant breadth of technical focus within the medical device sector.

WITTLIFF, KATERINA ANNA is the busiest examiner for Cardinal Health, currently managing 4 pending office actions. This concentration of 4 actions with one examiner is the highest in the portfolio, yet it represents a small fraction of the 92 total pending office actions. The 70 distinct examiners involved suggest that the company must manage a variety of examiner styles across its active matters.

The 21 distinct art units involved in these 92 pending office actions reflect a range of medical and mechanical technologies. Practitioners should be prepared for different examination trends across these 21 units. The 92 pending office actions provide a substantial data set for analyzing the company's current prosecution performance and examiner interactions with the 70 distinct examiners.

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

Portfolio Summary

126
Total Pending OAs
74
Non-Final OAs
39
Final Rejections
13
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 20 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

4
Overdue
3
Due this week
11
Due this month
2
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. 20 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (4)Due ≤ 7 days (3)Due ≤ 30 days (11)Due ≤ 60 days (2)

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.

77
Hard (61%)
45
Medium (36%)
4
Easy (3%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only5 (4%)
§101 + other17 (13%)
§103 only33 (26%)
§102 only7 (6%)
§112 only1 (1%)
Double-patenting only3 (2%)
Double-patenting + other5 (4%)
Multi-statute (no §101)55 (44%)

Industry Mix

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

4
Life Sciences
3% of docket
5
Information Tech
4% of docket
3
Communications
2% of docket
1
Semiconductors
1% of docket
110
Mechanical / Eng
87% of docket
3
Business / Other
2% 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.

1,260 h
Manual time on pending OAs
252 h
Time saved (low, 20%)
441 h
Time saved (mid, 35%)
11.0 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
WITTLIFF, KATERINA ANNA 4 35.0% +18.8%
GONZALEZ, LEI NMN 3 42.9% +51.8%
ROANE, AARON F 3 73.4% +9.8%
SWANSON, LEAH JENNINGS 2 65.6% +37.9%
WHITROCK, ZACHARIAH KIRBY 2 100.0% +0.0%
OSINSKI, BRADLEY JAMES 2 78.6% +11.2%
FREDRICKSON, COURTNEY B 2 75.6% +29.3%
SMALE, AVERY E 2 73.3% +18.7%
ALLEN, ROBERT F 2 72.9% +62.6%
KASHYAP, ESHA PRAKASH 2 100.0% +0.0%

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
18681847 SYSTEM AND METHOD FOR DETECTION AND CONTROL OF A SYRINGE PUMP EMPTY CONDITION WHITROCK, ZACHARIAH KIRBY —
18187632 DEVICE, METHOD, AND SYSTEM FOR ACCURATE DELIVERY OF FLUSH INFUSION KASHYAP, ESHA PRAKASH —

Hard Cases (77)

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
18501257 SLEEP APNEA RISK BASED ON BRADYCARDIA BURDEN D ABREU, MICHAEL JOSEPH 147d overdue
18094618 IMPLANTABLE CANCER THERAPY ELECTRODES WITH REDUCED MRI ARTIFACTS SKROBARCZYK III, ROBERT ANTHONY 132d overdue
18529468 DETERMINING CRT RESPONSE PORTER, JR, GARY A 4d overdue
18500637 ATRIAL FIBRILLATION DETECTION USING HEART SOUND MORPHOLOGY DOWNEY, JOHN R 5d
18480642 SPINNING COMPONENT SUNG, GERALD LUTHER 22d
18876093 SOON-TO-EXPIRE ANALYSIS MODELS FOR MEDICAL INVENTORY MANAGEMENT GEDRA, OLIVIA ROSE 26d
18129296 MULTILAYER MEDICAL TUBING WITH LOW SORBABILITY MIGGINS, MICHAEL C 26d
18571117 AUTOMATED DISPENSING CABINET TRIP MANAGEMENT SYSTEM BOLEN, NICHOLAS D 29d

Interview Candidates (17)

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
18912132 FILTER FOR IV SET SWANSON, LEAH JENNINGS —
18616686 CONNECTOR COUPLING ASSEMBLY WITH REMOVABLE AND REPLACEABLE INTEGRATED LUER CONNECTOR OSINSKI, BRADLEY JAMES —
18602650 TELESCOPIC TUBING EXTENSION SET FREDRICKSON, COURTNEY B —
18598733 SYSTEMS AND METHODS FOR GUIDED RELAY DELIVERY OF MEDICATION SMALE, AVERY E —
18683992 PUMP FLOW OPTIMIZATION ALLEN, ROBERT F —
18530918 NEEDLE-FREE CONNECTORS GONZALEZ, LEI NMN —
18514022 FLUID LINE OCCLUSION DETECTION SYSTEM AND METHODS SWANSON, LEAH JENNINGS —
18488904 PARALLEL INFUSION DEVICE, SYSTEM, AND METHOD OSINSKI, BRADLEY JAMES —

Top Art Units

Art UnitApps
3783 48
3792 14
3791 11
3796 11
3681 4
3741 4
3687 3
3682 2
3797 2
3781 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19382142 LOCKING CONNECTOR COUPLING ASSEMBLY DRAGICEVICH, ZACHARY T 3679 §102§112 Non-Final OA — Pending Nov 06, 2025
19319416 RARE INSTANCE ANALYTICS FOR DIVERSION DETECTION BARR, MARY EVANGELINE 3682 §112DP Non-Final OA — Pending Sep 04, 2025
19289663 MINI PERISTALTIC PUMP HERRMANN, JOSEPH S 3746 §103 Final Rejection — Pending Aug 04, 2025
19268846 LOCKING CAP ASSEMBLY CUMAR, NATHAN 3675 DP Non-Final OA — Pending Jul 14, 2025
19217577 SMART BARCODE ID FOR INTEROPERABLE PUMPS ELSHAER, ALAAELDIN M 3687 §103§112 Final Rejection — Pending May 23, 2025
19089954 ELECTRONIC TAGS FOR ASSOCIATING AND IDENTIFYING INTRAVENOUS ADMINISTRATION LINES YIMER, GETENTE A 2181 §103 Non-Final OA — Pending Mar 25, 2025
19077531 REMOTE FLASHING DURING INFUSION MUI, WEI YUN 2191 §103 Non-Final OA — Pending Mar 12, 2025
18876093 SOON-TO-EXPIRE ANALYSIS MODELS FOR MEDICAL INVENTORY MANAGEMENT GEDRA, OLIVIA ROSE 3681 §101§103§112 Final Rejection 26d Pending Dec 17, 2024
18945282 PRESSURE ACTUATED UNI-DIRECTIONAL FLOW CONTROL DEVICE FOR GRAVITY IV SETS MEDWAY, SCOTT J 3783 §102§103 Non-Final OA — Pending Nov 12, 2024
18920685 CONNECTION RETENTION ASSEMBLY HARRIS, WESLEY G 3783 §102§103§112 Non-Final OA — Pending Oct 18, 2024
18912132 FILTER FOR IV SET SWANSON, LEAH JENNINGS 3783 §102 Non-Final OA — Pending Oct 10, 2024
18821873 MEDICATION WORKFLOW MANAGEMENT WILLIAMS, TERESA S 3687 §101§103 Final Rejection — Pending Aug 30, 2024
18816730 MEANS OF GRAVITY IV FLOW SENSING VIA MASS CHANGE SENSOR AND DROP COUNTING DEVICE LUCCHESI, NICHOLAS D 3772 §102§103 Non-Final OA — Pending Aug 27, 2024
18807888 INTELLIGENT LOCK BOX FOR INFUSION DEVICE AFRIFA-KYEI, ANTHONY D 2686 §103§112 Final Rejection — Pending Aug 16, 2024
18787987 PASSIVE ALARM STATE ADJUSTMENT MA, KAM WAN 2688 DP Non-Final OA 9d Pending Jul 29, 2024
18723307 SYSTEM AND METHOD FOR INTELLIGENTLY CONTROLLING MEDICAL DEVICES SHEN, SAMUEL 2179 §102§103§112 Non-Final OA — Pending Jun 21, 2024
18721178 ADJUSTMENT OF AN INFUSION PUMP BASED ON PRESSURE CHANGES IN AN INFUSION LINE AHMED, TASNIM M — §102§112 Non-Final OA — Pending Jun 17, 2024
18737211 NEEDLELESS ACCESS CONNECTOR WITH ANTIMICROBIAL RESISTANT VALVE FARRAR, LAUREN PENG 3783 §102§103DP Non-Final OA — Pending Jun 07, 2024
18632755 ROLLER CLAMP CONTROL MECHANISM WHITROCK, ZACHARIAH KIRBY 3783 §103§112 Non-Final OA — Pending Apr 11, 2024
18616678 SURFACE TREATMENT FOR CONNECTORS PATEL, SHEFALI DILIP 3783 §102§103 Non-Final OA — Pending Mar 26, 2024
18616686 CONNECTOR COUPLING ASSEMBLY WITH REMOVABLE AND REPLACEABLE INTEGRATED LUER CONNECTOR OSINSKI, BRADLEY JAMES 3783 §102§112 Non-Final OA — Pending Mar 26, 2024
18693711 INTERLOCKED SENSOR ASSEMBLY FOR INFUSION SYSTEM RODRIGUEZ, CRIS LOIREN 3783 §102 Non-Final OA — Pending Mar 20, 2024
18608084 MULTI-STAGE CONNECTOR DISLODGEMENT PREVENTION DEVICE VU, QUYNH-NHU HOANG 3783 §102§112 Non-Final OA — Pending Mar 18, 2024
18691862 AUTOMATIC TRANSFER OF MEDICAL DEVICE SETTINGS NAJARIAN, LENA 3687 §101 Non-Final OA — Pending Mar 13, 2024
18602650 TELESCOPIC TUBING EXTENSION SET FREDRICKSON, COURTNEY B 3783 §102 Non-Final OA — Pending Mar 12, 2024
18690706 SYSTEM AND METHOD FOR DETECTING A LEAKING OCCLUDER VALVE IN A PERISTALTIC PUMP ZHONG, XIN Y 2855 §103 Final Rejection — Pending Mar 08, 2024
18598733 SYSTEMS AND METHODS FOR GUIDED RELAY DELIVERY OF MEDICATION SMALE, AVERY E 3783 DP Non-Final OA — Pending Mar 07, 2024
18595990 STRAIGHT CANULA GROOVE HEMOSHIELD CONNECTOR CARPENTER, WILLIAM R 3783 §102§103 Non-Final OA — Pending Mar 05, 2024
18593175 DOUBLE LAYER TUBING FOR IV INFUSION SETS LEE, RIP A 1762 §102§103 Non-Final OA — Pending Mar 01, 2024
18585651 EXTENDABLE TUBING EXTENSION SETS SCHMIDT, EMILY LOUISE 3783 §102§103 Final Rejection — Pending Feb 23, 2024
18683992 PUMP FLOW OPTIMIZATION ALLEN, ROBERT F — §102§103§112 Non-Final OA — Pending Feb 15, 2024
18681847 SYSTEM AND METHOD FOR DETECTION AND CONTROL OF A SYRINGE PUMP EMPTY CONDITION WHITROCK, ZACHARIAH KIRBY 3783 §103 Final Rejection — Pending Feb 06, 2024
18429779 FLUID CONNECTOR ASSEMBLY KASHYAP, ESHA PRAKASH 4100 §102§103 Non-Final OA — Pending Feb 01, 2024
18407973 ADD-ON DEVICE FOR BLOOD SET HANDPUMP WITH MECHANICAL LEVERAGE NG, HENRY 3741 §102§103§112 Non-Final OA — Pending Jan 09, 2024
18403119 CONNECTOR ASSEMBLY WITH DISLODGEMENT PREVENTION KIM, CRAIG SANG 3741 §103§112 Final Rejection — Pending Jan 03, 2024
18390553 CONNECTOR COUPLING ASSEMBLY WITH RELIEF CUTS DIPERT, FORREST BLAKE 3783 §102§103 Final Rejection — Pending Dec 20, 2023
18571117 AUTOMATED DISPENSING CABINET TRIP MANAGEMENT SYSTEM BOLEN, NICHOLAS D 3624 §101§102§103 Final Rejection 29d Pending Dec 15, 2023
18540101 MACHINE LEARNING ENABLED EXTRACTION OF UNSTRUCTURED CLINICAL DATA SCHNEE, HAL W 2129 §103 Non-Final OA — Pending Dec 14, 2023
18568533 MOBILE AUTOMATED DISPENSING MACHINE DEVICES AND METHODS RODRIGUEZ, JOSEPH C 3651 §102§103 Final Rejection — Pending Dec 08, 2023
18530925 SWITCH CHANNEL STAY-ON HEMOSHIELD CONNECTOR DANIEL, ANTARIUS S 3783 §102§103 Final Rejection — Pending Dec 06, 2023
18530918 NEEDLE-FREE CONNECTORS GONZALEZ, LEI NMN 3783 §102§112 Non-Final OA — Pending Dec 06, 2023
18514022 FLUID LINE OCCLUSION DETECTION SYSTEM AND METHODS SWANSON, LEAH JENNINGS 3783 §103 Final Rejection — Pending Nov 20, 2023
18513454 MULTI-LUMEN INTRAVENOUS TUBING SYSTEMS GHANNOUM, ISSA JAMIL 3783 §102§103 Non-Final OA — Pending Nov 17, 2023
18499615 SLIP LUER RETAINER GOLLAMUDI, NEERAJA 3783 §102§103 Non-Final OA — Pending Nov 01, 2023
18498512 SYRINGE PUMPS FOR AUTOMATIC DRUG COMPOUNDERS KELLY, TIMOTHY PATRICK 3753 §102Other Non-Final OA — Pending Oct 31, 2023
18488904 PARALLEL INFUSION DEVICE, SYSTEM, AND METHOD OSINSKI, BRADLEY JAMES 3783 §102§103§112 Final Rejection — Pending Oct 17, 2023
18486590 CHECK VALVES SMALE, AVERY E 3783 §102§103§112 Non-Final OA — Pending Oct 13, 2023
18480642 SPINNING COMPONENT SUNG, GERALD LUTHER 3741 §102§103 Non-Final OA 22d Pending Oct 04, 2023
18463770 UNIVERSAL FLUID CONNECTOR ASSEMBLY WITH A REGULATING VALVE COMPONENT BOSWORTH, KAMI A 3783 §102 Non-Final OA 28d Pending Sep 08, 2023
18236374 MACHINE LEARNING BASED CLINICAL RESOURCE CONTROLLER ANDERSON-FEARS, KEENAN NEIL 1687 §101§103 Non-Final OA — Pending Aug 21, 2023

View all 126 →

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Frequently Asked Questions

How many pending USPTO office actions does Cardinal Health Inc. have?

Cardinal Health Inc. has 126 pending office actions as of October 2026, spread across 33 art units and 104 examiners.

Which USPTO examiner handles the most Cardinal Health Inc. applications?

Katerina Anna Wittliff has the most, with 4 of Cardinal Health Inc.'s pending office actions.

What technology area are Cardinal Health Inc.'s patent applications in?

Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.

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