Technology area: Medical Devices & Mechanical Engineering
50 pending office actions • 17 art units • 40 examiners • 0 of 50 (0%) have an AI response strategy ready • 62 patents granted in the last 365 days
MASIMO Corporation has 49 pending office actions in Medical Devices & Mechanical Engineering. The portfolio includes 39 distinct examiners and 16 distinct art units, showing substantial examiner dispersion alongside recurring activity in a more concentrated set of technical units.
LIU, CHU CHUAN is the busiest examiner, with 5 pending matters. This repeated assignment merits examiner-specific analysis, but counsel should also coordinate positions across the broader art-unit structure to manage recurring medical-device issues.
Based on the USPTO statutory response window for each pending office action. 15 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
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. 15 of the docket's apps have a known mailing date.
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.
| Bucket | Cases |
|---|---|
| §101 only | 2 (4%) |
| §101 + other | 9 (18%) |
| §103 only | 16 (32%) |
| §112 only | 1 (2%) |
| Double-patenting only | 6 (12%) |
| Double-patenting + other | 4 (8%) |
| Multi-statute (no §101) | 12 (24%) |
How the docket's pending cases split across USPTO tech-center bands.
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.
| Examiner | Apps on this docket | Allow rate | Interview lift |
|---|---|---|---|
| LIU, CHU CHUAN | 5 | 71.3% | +14.9% |
| WINAKUR, ERIC FRANK | 3 | 79.3% | +13.8% |
| FARDANESH, MARJAN | 3 | 72.6% | +19.0% |
| JIANG, YONG HANG | 2 | 61.5% | +20.6% |
| MUSTANSIR, ABID A | 2 | 78.3% | +10.7% |
| PARK, EVELYN GRACE | 1 | 51.6% | +40.5% |
| BLACK-CHILDRESS, RAJSHEED O | 1 | 62.8% | +24.3% |
| SANGHERA, STEVEN G.S. | 1 | 30.3% | +29.7% |
| HUNNINGS, TRAVIS R | 1 | 82.4% | +14.0% |
| BRUCE, FAROUK A | 1 | 49.1% | +38.3% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 19174212 | REMOTE PATIENT MANAGEMENT AND MONITORING SYSTEMS AND METHODS | HUNNINGS, TRAVIS R | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18528600 | CLIP-ON OPTICAL OR ECG LIGHT BASED PHYSIOLOGICAL MEASUREMENT DEVICE | MORONESO, JONATHAN DREW | 46d overdue |
| 18464181 | WEARABLE PHYSIOLOGICAL MONITORING SYSTEM | KAHELIN, MICHAEL WILLIAM | 42d overdue |
| 17816869 | MULTIPLE MEASUREMENT MODE IN A PHYSIOLOGICAL SENSOR | AUGER, NOAH ANDREW | 8d |
| 17651554 | WELLNESS ANALYSIS SYSTEM | HOUGH, JESSANDRA F | 15d |
| 18584550 | PHYSIOLOGICAL MONITORING DEVICES, SYSTEMS, AND METHODS | WALKER, OLIVIA | 20d |
| 17671278 | FLUID TITRATION SYSTEM | KOO, BENJAMIN K | 28d |
| 18584891 | WEARABLE MONITORING DEVICE | MUTCHLER, CHRISTOPHER JOHN | 29d |
| 18651153 | ACOUSTIC RESPIRATORY MONITORING SENSOR WITH PROBE-OFF DETECTION | STEINBERG, AMANDA L | 35d |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18595168 | MEDICAL MONITORING SYSTEM | JIANG, YONG HANG | 32d overdue |
| 18803387 | MEDICAL COMMUNICATION PROTOCOL TRANSLATOR | JIANG, YONG HANG | 6d |
| 19273853 | HEALTH MONITORING SYSTEM FOR LIMITING THE SPREAD OF AN INFECTION | PARK, EVELYN GRACE | — |
| 19180882 | ELECTRONIC DEVICE NETWORK WITHIN AN ENVIRONMENT | BLACK-CHILDRESS, RAJSHEED O | — |
| 19174715 | PHYSIOLOGICAL MONITORING DEVICES, SYSTEMS, AND METHODS FOR DATA INTEGRATION | SANGHERA, STEVEN G.S. | — |
| 19174212 | REMOTE PATIENT MANAGEMENT AND MONITORING SYSTEMS AND METHODS | HUNNINGS, TRAVIS R | — |
| 19092862 | CONTINUOUS NONINVASIVE BLOOD PRESSURE MEASUREMENT | BRUCE, FAROUK A | — |
| 19029990 | MULTI-SITE NONINVASIVE MEASUREMENT OF A PHYSIOLOGICAL PARAMETER | LIU, CHU CHUAN | — |
| Art Unit | Apps |
|---|---|
| 3791 | 21 |
| 3792 | 6 |
| 3796 | 4 |
| 2689 | 3 |
| 2685 | 2 |
| 3785 | 2 |
| 3684 | 1 |
| 3797 | 1 |
| 2688 | 1 |
| 2858 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19273853 | HEALTH MONITORING SYSTEM FOR LIMITING THE SPREAD OF AN INFECTION | PARK, EVELYN GRACE | 3791 | §102§103§112 | Non-Final OA | — | Pending | Jul 18, 2025 |
| 19180882 | ELECTRONIC DEVICE NETWORK WITHIN AN ENVIRONMENT | BLACK-CHILDRESS, RAJSHEED O | 2685 | §103 | Non-Final OA | — | Pending | Apr 16, 2025 |
| 19174715 | PHYSIOLOGICAL MONITORING DEVICES, SYSTEMS, AND METHODS FOR DATA INTEGRATION | SANGHERA, STEVEN G.S. | 3684 | §101§103 | Non-Final OA | — | Pending | Apr 09, 2025 |
| 19174212 | REMOTE PATIENT MANAGEMENT AND MONITORING SYSTEMS AND METHODS | HUNNINGS, TRAVIS R | 2689 | §103 | Non-Final OA | — | Pending | Apr 09, 2025 |
| 19092862 | CONTINUOUS NONINVASIVE BLOOD PRESSURE MEASUREMENT | BRUCE, FAROUK A | 3797 | §103 | Non-Final OA | — | Pending | Mar 27, 2025 |
| 19060504 | MONITORING A HEMODYNAMIC STATUS OF A PATIENT | PATEL, NIDHI NIRAJ | 3791 | §102§103 | Non-Final OA | — | Pending | Feb 21, 2025 |
| 19030899 | BIDIRECTIONAL PHYSIOLOGICAL INFORMATION DISPLAY | WEARE, MEREDITH H | 3791 | §103Other | Non-Final OA | — | Pending | Jan 17, 2025 |
| 19029990 | MULTI-SITE NONINVASIVE MEASUREMENT OF A PHYSIOLOGICAL PARAMETER | LIU, CHU CHUAN | — | §101§102§103Other | Non-Final OA | — | Pending | Jan 17, 2025 |
| 19025501 | CORE BODY TEMPERATURE MEASUREMENT | ROBERTS, ANNA L | 3791 | §102DP | Non-Final OA | — | Pending | Jan 16, 2025 |
| 19014104 | ROBUST FRACTIONAL SATURATION DETERMINATION | WINAKUR, ERIC FRANK | 3791 | DP | Non-Final OA | — | Pending | Jan 08, 2025 |
| 18987619 | SYSTEM FOR DISPLAYING MEDICAL MONITORING DATA | HAILE, BENYAM | 2688 | DP | Non-Final OA | — | Pending | Dec 19, 2024 |
| 18979259 | TOTAL HEMOGLOBIN SCREENING SENSOR | FARDANESH, MARJAN | 3791 | §102DP | Non-Final OA | — | Pending | Dec 12, 2024 |
| 18975845 | FOLD FLEX CIRCUIT FOR LNOP | MORALES, JON ERIC C | 3796 | §102§112Other | Non-Final OA | — | Pending | Dec 10, 2024 |
| 18963166 | MOBILE PATIENT ALARM DISPLAY | PREVIL, DANIEL | 2685 | DP | Final Rejection | 17d overdue | Pending | Nov 27, 2024 |
| 18944506 | HYPERSATURATION INDEX | WINAKUR, ERIC FRANK | 3791 | §112Other | Non-Final OA | — | Pending | Nov 12, 2024 |
| 18929360 | TISSUE PROFILE WELLNESS MONITOR | WINAKUR, ERIC FRANK | 3791 | §101DP | Non-Final OA | — | Pending | Oct 28, 2024 |
| 18911870 | HAEMODYNAMIC MONITOR WITH IMPROVED FILTERING | KRETZER, KYLE W. | 3791 | §101§103§112 | Non-Final OA | — | Pending | Oct 10, 2024 |
| 18901533 | SOFT BOOT PULSE OXIMETRY SENSOR | LIU, CHU CHUAN | 3791 | §102§112 | Non-Final OA | — | Pending | Sep 30, 2024 |
| 18883261 | VEHICLE OPERATION WITH PHYSIOLOGICAL MONITORING | SCHINDLER, DAVID M | 2858 | §101§103§112 | Final Rejection | — | Pending | Sep 12, 2024 |
| 18882092 | USER-WORN DEVICE FOR NONINVASIVELY MEASURING A PHYSIOLOGICAL PARAMETER OF A USER | LIU, CHU CHUAN | 3791 | §112DP | Non-Final OA | — | Pending | Sep 11, 2024 |
| 18803387 | MEDICAL COMMUNICATION PROTOCOL TRANSLATOR | JIANG, YONG HANG | 2689 | §103Other | Final Rejection | 6d | Pending | Aug 13, 2024 |
| 18787964 | ASSISTIVE CAPNOGRAPHY DEVICE | MURPHY, VICTORIA | 3785 | §102§103Other | Non-Final OA | — | Pending | Jul 29, 2024 |
| 18780258 | MEDICAL SYSTEMS AND METHODS | JIAN, SHIRLEY XUEYING | 3792 | §102§103§112 | Final Rejection | — | Pending | Jul 22, 2024 |
| 18765634 | LOW NOISE OXIMETRY CABLE | LIU, CHU CHUAN | 3791 | §103§112Other | Final Rejection | — | Pending | Jul 08, 2024 |
| 18750980 | REMOTE PATIENT MANAGEMENT AND MONITORING SYSTEMS AND METHODS | BARR, MARY EVANGELINE | 3682 | §103 | Final Rejection | — | Pending | Jun 21, 2024 |
| 18667442 | PHYSIOLOGICAL MEASUREMENT DEVICE | FARDANESH, MARJAN | 3791 | DP | Non-Final OA | — | Pending | May 17, 2024 |
| 18662172 | WEARABLE DEVICE WITH PHYSIOLOGICAL PARAMETERS MONITORING | MUSTANSIR, ABID A | 3791 | §103 | Non-Final OA | — | Pending | May 13, 2024 |
| 18651153 | ACOUSTIC RESPIRATORY MONITORING SENSOR WITH PROBE-OFF DETECTION | STEINBERG, AMANDA L | 3792 | §101§112 | Final Rejection | 35d | Pending | Apr 30, 2024 |
| 18626915 | RESPIRATION PROCESSOR | JANG, CHRISTIAN Y | 3791 | DP | Non-Final OA | — | Pending | Apr 04, 2024 |
| 18625126 | OPIOID OVERDOSE DETECTION USING PATTERN RECOGNITION | LIU, CHU CHUAN | 3791 | §103 | Non-Final OA | — | Pending | Apr 02, 2024 |
| 18606807 | WIRELESS PATIENT MONITORING SYSTEM | HUSSAINI, ATTIYA SAYYADA | 3792 | §103 | Non-Final OA | — | Pending | Mar 15, 2024 |
| 18595899 | APPARATUS AND METHOD FOR CREATING A STABLE OPTICAL INTERFACE | FARDANESH, MARJAN | 3791 | DP | Non-Final OA | — | Pending | Mar 05, 2024 |
| 18595168 | MEDICAL MONITORING SYSTEM | JIANG, YONG HANG | 2689 | §103 | Final Rejection | 32d overdue | Pending | Mar 04, 2024 |
| 18584891 | WEARABLE MONITORING DEVICE | MUTCHLER, CHRISTOPHER JOHN | 3792 | §102§103 | Final Rejection | 29d | Pending | Feb 22, 2024 |
| 18584550 | PHYSIOLOGICAL MONITORING DEVICES, SYSTEMS, AND METHODS | WALKER, OLIVIA | 3796 | §102§112 | Final Rejection | 20d | Pending | Feb 22, 2024 |
| 18535816 | FOOT WORN PHYSIOLOGICAL SENSOR AND SYSTEMS INCLUDING SAME | MUSTANSIR, ABID A | 3791 | §103 | Non-Final OA | — | Pending | Dec 11, 2023 |
| 18530852 | INTELLIGENT MEDICAL ESCALATION PROCESS | RAHMAN, SHAH M | 2413 | §103 | Final Rejection | 29d | Pending | Dec 06, 2023 |
| 18528600 | CLIP-ON OPTICAL OR ECG LIGHT BASED PHYSIOLOGICAL MEASUREMENT DEVICE | MORONESO, JONATHAN DREW | 3791 | §102§103§112 | Final Rejection | 46d overdue | Pending | Dec 04, 2023 |
| 18464181 | WEARABLE PHYSIOLOGICAL MONITORING SYSTEM | KAHELIN, MICHAEL WILLIAM | 3792 | §102§103 | Non-Final OA | 42d overdue | Pending | Sep 08, 2023 |
| 18448834 | WEARABLE PHYSIOLOGICAL MONITORING DEVICE | HADDAD, MOUSSA MAHER | 3796 | §101§103§112 | Non-Final OA | — | Pending | Aug 11, 2023 |
| 18365030 | PERMISSION-BASED TRANSFERRING OF WIRELESS PHYSIOLOGICAL MONITORING | MULLINS, JESSICA LYNN | 3792 | §103§112 | Final Rejection | — | Pending | Aug 03, 2023 |
| 18342286 | PATIENT POSITION DETECTION SYSTEM | WOO, JAE KYUN | 3795 | §103 | Final Rejection | 34d | Pending | Jun 27, 2023 |
| 18177418 | Headgear Assembly for Securing a Fluid Tube | LEDERER, SARAH B | 3785 | §103 | Non-Final OA | 22d | Pending | Mar 02, 2023 |
| 17816869 | MULTIPLE MEASUREMENT MODE IN A PHYSIOLOGICAL SENSOR | AUGER, NOAH ANDREW | 1687 | §101§103§112Other | Final Rejection | 8d | Pending | Aug 02, 2022 |
| 17657933 | ELECTROCARDIOGRAM DEVICE | CHA, CASEY GEORGE | 3794 | §103 | Non-Final OA | — | Pending | Apr 04, 2022 |
| 17651554 | WELLNESS ANALYSIS SYSTEM | HOUGH, JESSANDRA F | 3796 | §101 | Non-Final OA | 15d | Pending | Feb 17, 2022 |
| 17671278 | FLUID TITRATION SYSTEM | KOO, BENJAMIN K | 3783 | §101§103§112 | Non-Final OA | 28d | Pending | Feb 14, 2022 |
| 17518010 | PNEUMONIA SCREENER | NATNITHITHADHA, NAVIN | 3791 | §103 | Non-Final OA | 69d | Pending | Nov 03, 2021 |
| 17233206 | PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM | SHOSTAK, ANDREY | 3791 | §103DP | Non-Final OA | — | Pending | Apr 16, 2021 |
| 16594803 | PATIENT DATABASE ANALYTICS | NGUYEN, TRAN N | 3685 | §101 | Final Rejection | — | Pending | Oct 07, 2019 |
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Start Free TrialMASIMO Corporation has 50 pending office actions as of October 2026, spread across 17 art units and 40 examiners.
Chu Chuan Liu has the most, with 5 of MASIMO Corporation's pending office actions.
Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.
