Prosecution Insights
Prosecution Insights
Technology area: Medical Devices & Mechanical Engineering
91 pending office actions • 26 art units • 70 examiners • 0 of 91 (0%) have an AI response strategy ready • 147 patents granted in the last 365 days
Carrier Corporation currently manages 95 pending office actions within the Medical Devices & Mechanical Engineering technology area. These actions are distributed across 75 distinct examiners, which is a smaller number than the total 95 pending office actions. The portfolio spans 28 distinct art units, indicating a broad technical range for the company's filings. SHAIKH, MERAJ A is the busiest examiner, currently handling 4 pending office actions.
The 75 distinct examiners involved in these 95 pending office actions mean that many examiners are responsible for more than one case. This distribution requires the company to adapt to many different examination styles across the 28 distinct art units. SHAIKH, MERAJ A, with 4 pending office actions, represents a point of concentration in the portfolio. Practitioners should note that the 95 pending office actions are spread across many different technical groups, necessitating a versatile prosecution strategy.
With 28 distinct art units in play, the company must ensure consistency in its technical arguments across the Medical Devices & Mechanical Engineering sector. The 75 distinct examiners provide a broad base of feedback, which can be used to refine future filings. SHAIKH, MERAJ A is the busiest examiner with 4 pending office actions, making their specific preferences a key factor for those particular cases.
Based on the USPTO statutory response window for each pending office action. 21 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. 21 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 + other | 3 (3%) |
| §103 only | 24 (26%) |
| §102 only | 4 (4%) |
| §112 only | 4 (4%) |
| Double-patenting + other | 1 (1%) |
| Multi-statute (no §101) | 55 (60%) |
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 |
|---|---|---|---|
| SHAIKH, MERAJ A | 4 | 57.3% | +22.3% |
| DELEON, DARIO ANTONIO | 3 | 65.4% | +31.1% |
| AL SAMIRI, KHALED AHMED ALI | 3 | 47.2% | +60.1% |
| SULLENS, TAVIA L | 3 | 50.0% | +46.6% |
| ZERPHEY, CHRISTOPHER R | 3 | 48.7% | +19.2% |
| DUKE, EMMANUEL E | 2 | 68.7% | +27.6% |
| NORMAN, MARC E | 2 | 84.0% | +10.8% |
| TADESSE, MARTHA | 2 | 67.2% | +14.4% |
| AZAD, MD ABUL K | 2 | 81.5% | +20.9% |
| DUNN, DARRIN D | 2 | 75.3% | +24.2% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18309137 | HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM CONTROL LEVERAGING FUTURE WEATHER | AZAD, MD ABUL K | 15d |
| 18964759 | SELECTIVE AIR CONDITIONING IN RESPONSE TO ELECTRICITY RATES | AZAD, MD ABUL K | — |
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 |
|---|---|---|---|
| 18350279 | AUDIO-BASED OCCUPANCY DETECTION | ZAAB, SHARAH | 44d overdue |
| 18497770 | MODERATE-TO-LOW GLOBAL WARMING POTENTIAL VALUE REFRIGERANT LEAK DETECTION | HAMILTON, FRANCES F | 9d overdue |
| 18758410 | REFRIGERANT CIRCUIT FOR COOLING A VFD UNIT OF AN AIR CONDITIONING SYSTEM | BAUER, CASSEY D | 1d overdue |
| 18515506 | COMPACT BIPOLAR IONIZER | BUI, DUNG H | 5d |
| 18659892 | DRAW-THROUGH FAN ASSEMBLY AND HEAT EXCHANGER SYSTEM | RUBY, TRAVIS C | 19d |
| 18339445 | SHELL AND TUBE ISOLATION IN HEAT EXCHANGER | WEILAND, HANS R. | 27d |
| 18743092 | APPARATUS FOR POWERING A REFRIGERATION UNIT OF A CARGO CONTAINER | MARTIN, ELIZABETH J | 29d |
| 18645507 | HYBRID REFRIGERATION SYSTEM, CONTROL METHOD THEREOF AND TRANSPORTATION REFRIGERATION VEHICLE | MOORE, ADAM DORREL | 30d |
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 |
|---|---|---|---|
| 18762836 | SELF-POWERED AIR CONDITIONING SYSTEMS | ZERPHEY, CHRISTOPHER R | 9d overdue |
| 18309137 | HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM CONTROL LEVERAGING FUTURE WEATHER | AZAD, MD ABUL K | 15d |
| 18341098 | REFRIGERANT COLLECTOR AND AIR SEPARATOR | ZERPHEY, CHRISTOPHER R | 23d |
| 18334601 | COMPRESSOR ISOLATION MOLDED INSERT | DELEON, DARIO ANTONIO | 34d |
| 18644575 | TRANSPORT REFRIGERATION UNIT AND REFRIGERATION CIRCUIT WITH REFRIGERANT-BASED DEFROST CONTROL AND A METHOD THEREOF | SHAIKH, MERAJ A | 50d |
| 19213534 | WATER CHILLER THERMAL STORAGE | DELEON, DARIO ANTONIO | — |
| 19205098 | REFRIGERATION APPARATUS | DUKE, EMMANUEL E | — |
| 19178050 | FLUID DISTRIBUTOR FOR A SHELL-AND-TUBE FLOODED EVAPORATOR | DELEON, DARIO ANTONIO | — |
| Art Unit | Apps |
|---|---|
| 3763 | 23 |
| 2119 | 4 |
| 3799 | 3 |
| 3700 | 3 |
| 1776 | 3 |
| 2836 | 2 |
| 2117 | 2 |
| 3762 | 2 |
| 2857 | 2 |
| 2859 | 2 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19334190 | CLEARANCE FLOW CONTROL FOR MIXED-FLOW FAN | PRUITT, JUSTIN A | 3745 | §102§103 | Non-Final OA | — | Pending | Sep 19, 2025 |
| 19293330 | SEALING SYSTEM FOR MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR AND MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR | LEGENDRE, CHRISTOPHER RYAN | 3711 | §112 | Final Rejection | 28d | Pending | Aug 07, 2025 |
| 19269622 | DIRECT DRIVE REFRIGERANT SCREW COMPRESSOR WITH REFRIGERANT LUBRICATED ROTORS | MIAN, SHAFIQ A | 3746 | §102§103§112 | Non-Final OA | — | Pending | Jul 15, 2025 |
| 19213534 | WATER CHILLER THERMAL STORAGE | DELEON, DARIO ANTONIO | — | §102§103§112 | Non-Final OA | — | Pending | May 20, 2025 |
| 19205098 | REFRIGERATION APPARATUS | DUKE, EMMANUEL E | — | §102§103§112 | Non-Final OA | — | Pending | May 12, 2025 |
| 19178050 | FLUID DISTRIBUTOR FOR A SHELL-AND-TUBE FLOODED EVAPORATOR | DELEON, DARIO ANTONIO | — | §102§103§112 | Non-Final OA | — | Pending | Apr 14, 2025 |
| 19176621 | CONTROL METHOD AND CONTROL DEVICE FOR COMPRESSOR UNIT | LIU, HENRY Y | 3654 | §102Other | Final Rejection | — | Pending | Apr 11, 2025 |
| 19089911 | HVAC CASCADE HEAT PUMP | DUKE, EMMANUEL E | — | §102§103§112 | Non-Final OA | — | Pending | Mar 25, 2025 |
| 19086650 | EJECTOR REFRIGERATION SYSTEM | NORMAN, MARC E | — | §102§103§112 | Non-Final OA | — | Pending | Mar 21, 2025 |
| 19076413 | REFRIGERATING SYSTEM, METHOD FOR CONTROLLING REFRIGERATING SYSTEM, AND STORAGE MEDIUM | TADESSE, MARTHA | — | §101§103§112 | Non-Final OA | — | Pending | Mar 11, 2025 |
| 19063487 | COMPRESSOR MOTOR WITH A COOLING SYSTEM | SECK, AHMED F | — | §103 | Non-Final OA | — | Pending | Feb 26, 2025 |
| 19050894 | FLUID DISTRIBUTOR FOR AN INLET HEADER OF A HEAT EXCHANGER | LANE, DEVON | — | §103§112 | Non-Final OA | — | Pending | Feb 11, 2025 |
| 19047949 | WATER SOURCE HEAT PUMP SYSTEM | GAYE, SAMBA NMN | — | §103§112 | Non-Final OA | — | Pending | Feb 07, 2025 |
| 19045254 | SYSTEM AND METHOD FOR LUBRICANT MANAGEMENT IN A HEATING, VENTILATION, AIR CONDITIONING, AND REFRIGERATION (HVACR) SYSTEM | NORMAN, MARC E | — | §102§103§112 | Non-Final OA | — | Pending | Feb 04, 2025 |
| 19032550 | HEAT EXCHANGE SYSTEM AND HEAT EXCHANGE METHOD | MA, KUN KAI | — | §102§103 | Non-Final OA | — | Pending | Jan 21, 2025 |
| 19020469 | FLUID DISTRIBUTOR FOR A HEAT EXCHANGER | AL SAMIRI, KHALED AHMED ALI | — | §102§103§112 | Non-Final OA | — | Pending | Jan 14, 2025 |
| 19018632 | REFRIGERATION SYSTEM | SULLENS, TAVIA L | — | §102§103§112 | Non-Final OA | — | Pending | Jan 13, 2025 |
| 18970032 | MANAGEMENT OF SELF-POWERED AIR CONDITIONING SYSTEMS | KOSSEK, MAGDALENA IZABELLA | — | §102§103 | Non-Final OA | — | Pending | Dec 05, 2024 |
| 18964759 | SELECTIVE AIR CONDITIONING IN RESPONSE TO ELECTRICITY RATES | AZAD, MD ABUL K | — | §103 | Non-Final OA | — | Pending | Dec 02, 2024 |
| 18920921 | METHOD FOR CONTROLLING REFRIGERATED TRANSPORTATION SYSTEM, REFRIGERATED TRANSPORTATION SYSTEM, AND STORAGE MEDIUM | SHAIKH, MERAJ A | 3763 | §102§103§112 | Final Rejection | — | Pending | Oct 20, 2024 |
| 18916817 | MICROCHANNEL HEAT EXCHANGER | ROJOHN III, CLAIRE E | 3763 | §103§112 | Non-Final OA | — | Pending | Oct 16, 2024 |
| 18916798 | AIR INTAKE DEVICE FOR THE ENGINE OF A VEHICLE OR TRANSPORTATION EQUIPEMENT | TRIGGS, JAMES J | — | §102§112 | Non-Final OA | — | Pending | Oct 16, 2024 |
| 18912831 | CHILLER | SULLENS, TAVIA L | 3763 | §103 | Non-Final OA | — | Pending | Oct 11, 2024 |
| 18912682 | OPTIMIZED SETBACK CONTROL SYSTEM AND A METHOD THEREOF | LINDSAY, BERNARD G | — | §103 | Non-Final OA | — | Pending | Oct 11, 2024 |
| 18910588 | THERMAL OPTIMIZATION FOR DATA CENTERS | DUNN, DARRIN D | — | §101§102§103 | Non-Final OA | — | Pending | Oct 09, 2024 |
| 18899888 | CONDENSER VESSEL, SYSTEM, AND METHOD FOR SEPARATING OIL FROM AN OIL-REFRIGERANT MIXTURE | TADESSE, MARTHA | 3763 | §112 | Non-Final OA | — | Pending | Sep 27, 2024 |
| 18897375 | SELF-POWERED AIR CONDITIONING SYSTEMS | MARTIN, ELIZABETH J | 3763 | §103 | Final Rejection | — | Pending | Sep 26, 2024 |
| 18895302 | POWER SYSTEM FOR TRANSPORTATION REFRIGERATION UNIT AND METHOD FOR CONTROLLING POWER THEREOF | EVANS, KARSTON G | 3657 | §103 | Non-Final OA | 11d overdue | Pending | Sep 24, 2024 |
| 18883281 | EXCESS ENERGY MANAGEMENT FOR SELF-POWERED AIR CONDITIONING SYSTEMS | SHIAO, DAVID A | 2836 | §103 | Non-Final OA | 43d overdue | Pending | Sep 12, 2024 |
| 18827697 | THERMOSTAT FOR CONTROLLING OPERATION OF A HEATING,VENTILATION, AND AIR CONDITIONING (HVAC) SYSTEM | JENKINS, TAJAUN DECARLO | — | §103§112 | Non-Final OA | — | Pending | Sep 07, 2024 |
| 18818911 | HEAT PUMP SYSTEM FOR OPTIMIZING OPERATIONAL EFFICIENCYWITHOUT CHARGE IMBALANCE AND A METHOD THEREOF | ZERPHEY, CHRISTOPHER R | 3799 | §102 | Final Rejection | — | Pending | Aug 29, 2024 |
| 18819144 | REFRIGERATED TRANSPORT CONTAINER AND REFRIGERATED TRANSPORT VEHICLE | SEHN, MICHAEL L | — | §102§103§112 | Non-Final OA | — | Pending | Aug 29, 2024 |
| 18817832 | BUILDING CHILLER/HEAT PUMP SYSTEM CARBON EMISSION REDUCTION BY SHIFTING TEMPERATURE SETPOINT | CHUNG, MONG-SHUNE | — | §102Other | Non-Final OA | — | Pending | Aug 28, 2024 |
| 18762836 | SELF-POWERED AIR CONDITIONING SYSTEMS | ZERPHEY, CHRISTOPHER R | 3799 | §102§103§112DP | Non-Final OA | 9d overdue | Pending | Jul 03, 2024 |
| 18762830 | SELF-POWERED AIR CONDITIONING SYSTEMS | BRADFORD, JONATHAN | 3763 | §102§103§112 | Non-Final OA | 43d | Pending | Jul 03, 2024 |
| 18761622 | START-UP DEVICE, MOTOR SYSTEM AND METHOD FOR REDUCING DC MOTOR START-UP CURRENT | AGARED, GABRIEL T | 2846 | §102§103 | Final Rejection | — | Pending | Jul 02, 2024 |
| 18761716 | OUTDOOR UNIT FOR REFRIGERATION CABINET AND REFRIGERATION CABINET | HINCAPIE SERNA, GUSTAVO A | 3763 | §102§103 | Non-Final OA | — | Pending | Jul 02, 2024 |
| 18758410 | REFRIGERANT CIRCUIT FOR COOLING A VFD UNIT OF AN AIR CONDITIONING SYSTEM | BAUER, CASSEY D | 3763 | §103§112 | Final Rejection | 1d overdue | Pending | Jun 28, 2024 |
| 18753196 | SHELL-AND-TUBE HEAT EXCHANGER ASSEMBLY AND METHOD FORLIMITING A CORROSION RESPONSE OF TUBES THEREIN | AL SAMIRI, KHALED AHMED ALI | 3763 | §103§112 | Non-Final OA | — | Pending | Jun 25, 2024 |
| 18746124 | ROOFTOP AIR CONDITIONING UNIT | MYERS, KEITH STANLEY | 3763 | §103 | Final Rejection | 17d overdue | Pending | Jun 18, 2024 |
| 18746118 | ROOFTOP AIR CONDITIONING UNIT | BAUER, CASSEY D | 3763 | §103§112 | Non-Final OA | — | Pending | Jun 18, 2024 |
| 18745286 | AIR HANDLING UNIT WITH DIAGONAL FLOW FAN | AL SAMIRI, KHALED AHMED ALI | 3763 | §112 | Final Rejection | — | Pending | Jun 17, 2024 |
| 18743879 | SERVER COOLING WITH IMMERSED HEAT SINK | FENG, ZHENGFU J | 2835 | §102§103 | Final Rejection | — | Pending | Jun 14, 2024 |
| 18743092 | APPARATUS FOR POWERING A REFRIGERATION UNIT OF A CARGO CONTAINER | MARTIN, ELIZABETH J | 3763 | §102§103§112 | Final Rejection | 29d | Pending | Jun 13, 2024 |
| 18739645 | PROTECTIVE SHIELD FOR A SENSOR SUBASSEMBLY | NATH, SUMAN KUMAR | 2855 | §102§103 | Non-Final OA | — | Pending | Jun 11, 2024 |
| 18739504 | METHOD FOR PROTECTING TUBES OF A HEAT EXCHANGER | HOTCHKISS, MICHAEL WAYNE | — | §102§103 | Non-Final OA | — | Pending | Jun 11, 2024 |
| 18738020 | SYSTEM AND METHOD FOR CALIBRATING INDOOR AIR QUALITY SENSORSOF A MULTI-ZONE ENVIRONMENT | YANCHUS III, PAUL B | — | §102§103 | Non-Final OA | — | Pending | Jun 09, 2024 |
| 18732827 | HEATING VENTILATION AND AIR CONDITIONING SYSTEM FOR GENERATING FIRE ALERTS AND METHOD THEREOF | SURYAWANSHI, SURESH | — | §102 | Non-Final OA | — | Pending | Jun 04, 2024 |
| 18665481 | ELECTROMAGNETIC SHIELD FOR A GAS DETECTOR | MILLISER, THERON S | 2841 | §102§103 | Final Rejection | — | Pending | May 15, 2024 |
| 18659892 | DRAW-THROUGH FAN ASSEMBLY AND HEAT EXCHANGER SYSTEM | RUBY, TRAVIS C | 3763 | §102§103 | Final Rejection | 19d | Pending | May 09, 2024 |
IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.
Start Free TrialCarrier Corporation has 91 pending office actions as of October 2026, spread across 26 art units and 70 examiners.
Meraj A Shaikh has the most, with 4 of Carrier Corporation's pending office actions.
Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.