USPTO Examiner BUTCHER CAROLINE N - Art Unit 3676

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19196354EARTH BORING REAMERMay 2025October 2025Allow510NoNo
19051077DEVICE FOR CENTERING A SENSOR ASSEMBLY IN A BOREFebruary 2025July 2025Allow510NoNo
19049315Downhole Reamer with Rotating SleeveFebruary 2025January 2026Allow1110NoNo
19040649REFRESHABLE POLYCRYSTALLINE DIAMOND COMPACT (PDC) DRILL BITSJanuary 2025March 2026Allow1310NoNo
19040660REFRESHABLE POLYCRYSTALLINE DIAMOND COMPACT (PDC) DRILL BITSJanuary 2025March 2026Allow1310NoNo
18983918MOTOR COOLING AND DEBRIS MANAGEMENT DURING MILLINGDecember 2024August 2025Allow810YesNo
18980749DRILL BITS FOR DRILLING SUBTERRANEAN BOREHOLES AND MECHANICALLY LOCKED CUTTER ELEMENTS FOR SAMEDecember 2024January 2026Allow1310NoNo
18867046AUTONOMOUS FLOW CONTROL DEVICE AND METHODNovember 2024March 2026Allow1610NoNo
18913576EXPANDABLE LINER HANGER ASSEMBLY HAVING ANCHOR KEY IN DOVETAIL GROOVE ON HANGER BODYOctober 2024October 2025Allow1210YesNo
18912094UNTETHERED DOWNHOLE TOOLSOctober 2024December 2025Allow1510NoNo
18854964EVALUATING CHOKE VALVE PERFORMANCE DURING SUBTERRANEAN FIELD OPERATIONSOctober 2024April 2025Allow610YesNo
18907981VARIABLE INTENSITY AND SELECTIVE PRESSURE ACTIVATED JAROctober 2024November 2025Allow1320NoNo
18828472BIT CUTTING STRUCTURE AND PDC BIT FOR HIGHLY ABRASIVE FORMATIONSSeptember 2024May 2025Allow820NoNo
18813133INSTRUMENTED DRILL BITAugust 2024July 2025Allow1110NoNo
18792722TENSION MONITORAugust 2024January 2026Allow1720NoNo
18782370INTEGRATED DETECTION TEST DEVICE FOR DRILL BIT AND ROTARY BLOWOUT PREVENTER AND DETECTION METHOD THEREOFJuly 2024October 2024Allow310NoNo
18761295APPARATUS AND METHODS FOR DEPLOYING SENSOR IN DOWNHOLE TOOLJuly 2024January 2025Allow610NoNo
18743216SYSTEMS AND METHODS FOR MULTI-OFFSET SEISMIC PROFILINGJune 2024February 2026Allow2010NoNo
18733303ANTENNA ARRAY FOR TRACKING AN OBJECTJune 2024March 2026Allow2121NoNo
18679569PULSE GENERATION OF VISCOUS FLUIDS WITH A MUD MOTORMay 2024August 2025Allow1510YesNo
18714634MULTI-FUNCTIONAL WELLBORE CONDITIONING SYSTEMMay 2024September 2025Allow1610NoNo
18676058METHOD AND SYSTEM FOR MONITORING AND CONTROLLING FLUID MOVEMENT THROUGH A WELLBOREMay 2024August 2025Allow1510NoNo
18672284CASING DRILL BIT FACILITATING DRILL-OUT THEREOF, AND RELATED METHODS OF MANUFACTURE AND USEMay 2024November 2025Allow1820NoNo
18672837EXPANDABLE WELLBORE LOSS CONTROL PATCHMay 2024August 2025Allow1510NoNo
18671890ADJUSTABLE VENTURI FOR MULTIPHASE FLOWMETERMay 2024May 2025Allow1100NoNo
18670208DOWNHOLE SEPARATION SYSTEMMay 2024September 2025Allow1610NoNo
18660779Communicating with Blowout Preventer Control SystemMay 2024March 2025Allow1010NoNo
18660705Communicating with Blowout Preventer Control SystemMay 2024April 2025Allow1110NoNo
18657034Reamer Drill Bit DeviceMay 2024September 2025Abandon1710NoNo
18645938MULTI-SENSOR ASSEMBLYApril 2024September 2025Allow1610YesNo
18644493UMBILICAL PROTECTION AND STRUCTURAL REINFORCEMENT JOINT FOR COMPLETION AND WORKOVER RISERApril 2024November 2025Allow1920NoNo
18643660EARTH-BORING TOOLS AND METHODS OF MANUFACTURING AND USING SUCH EARTH-BORING TOOLSApril 2024November 2025Allow1820NoNo
18638693COMBINED DRILL BIT BASED ON ELECTRO-PULSE-DRILLING TECHNOLOGYApril 2024March 2025Allow1100NoNo
18700310PLUGGING TOOL FOR DOWNHOLE TUBULARS AND METHOD FOR USE THEREOFApril 2024April 2025Allow1200NoNo
18620504FLUID OPERATED MOTOR FOR RUNNING CASING WITH BYPASS FOR PUMPING LOST CIRCULATION MATERIALMarch 2024April 2025Allow1310NoNo
18696202EXPANDING DRILL DEVICEMarch 2024November 2025Allow1910NoNo
18615439VORTEX FILTRATION FOR DEBRIS-SENSITIVE COMPONENTS IN A WELLMarch 2024May 2025Allow1410YesNo
18603846EXCAVATION AND SHORING EQUIPMENTMarch 2024August 2025Allow1720NoNo
18603759EXCAVATION BORING AND SHORING TOOLMarch 2024March 2025Allow1210NoNo
18603485METAL SEAL FOR LINER DRILLINGMarch 2024November 2025Allow2030NoNo
18602956SYSTEM AND METHOD TO PREVENT SOLIDS FALLBACK IN ESP-LIFTED WELLS USING GELMarch 2024June 2025Allow1510NoNo
18593356ANNULAR BARRIERMarch 2024December 2025Allow2210NoNo
18582314COMPENSATING RIG ELEVATORFebruary 2024March 2025Abandon1310NoNo
18441816SELECTABLE HOLE TRIMMER AND METHODS THEREOFFebruary 2024April 2025Abandon1410NoNo
18439918FORMATION TESTING TOOL AND METHODS FOR PERFORMING A FORMATION PRESSURE TEST USING BATTERY POWERFebruary 2024July 2025Allow1820NoNo
18439846FORMATION TESTING TOOL AND METHODS FOR PERFORMING A HYBRID POWER FORMATION PRESSURE TESTFebruary 2024July 2025Allow1820YesNo
18434481SHOCK ABSORBING TOOL AND METHODS OF USEFebruary 2024September 2025Abandon2010NoNo
18432854HDD REAMER HAVING REMOVABLE CUTTING TEETHFebruary 2024April 2025Allow1410NoNo
18431167ROTATING CHECK VALVE FOR IMPROVED DOWNHOLE OPERATIONSFebruary 2024December 2025Allow2220YesNo
18422414DEBRIS EXCLUSION TOOL, SYSTEM AND METHODJanuary 2024April 2025Allow1510NoNo
18413703BRAKE AND WEAR INDICATOR FOR EXPANDABLE DOWNHOLE TOOLJanuary 2024October 2025Allow2011NoNo
18403489TAPERED STRING PULSE POWER ROCK EXCAVATION SYSTEMJanuary 2024November 2024Allow1010NoNo
18402517DOWNHOLE DRILLING SUB WITH CONTROLLABLE STIFFNESSJanuary 2024August 2025Abandon2010NoNo
18569964MULTI-CUTTING-EDGE DIAMOND COMPOSITES AND EARTH-BORING TOOLSDecember 2023June 2025Allow1810NoNo
18565868Pulse Pressure FrackingNovember 2023May 2025Allow1710NoNo
18513548Apparatus for Affixing a Rotation Sensor to a Rod Lift SystemNovember 2023October 2025Allow2311YesNo
18388247Downhole Reamer with Rotating SleeveNovember 2023October 2024Allow1130YesNo
18498486VEHICLE REAR PORTION STRUCTUREOctober 2023January 2026Allow2600NoNo
18494975DEVICE FOR CENTERING A SENSOR ASSEMBLY IN A BOREOctober 2023March 2025Allow1610NoNo
18494270A SEALING ASSEMBLY EMPLOYING A DEPLOYABLE SPACEROctober 2023October 2025Allow2420NoNo
18493468WIPER DART HAVING A BI-DIAMETER WIPER CUP WITH PROTRUDING RINGOctober 2023February 2025Allow1610YesNo
18382054WELL COMPLETION PIPE HAVING FLUID ISOLATED CONDUCTIVE PATHOctober 2023March 2025Allow1710NoNo
18484438Systems And Methods For Flow-Activated Initiation Of Plug Assembly Flow SeatsOctober 2023May 2025Abandon2010NoNo
18370687APPARATUS AND METHODS FOR DEPLOYING A SENSOR IN A DOWNHOLE TOOLSeptember 2023June 2024Allow920NoNo
18466159WIPER DART HAVING A BI-DIAMETER WIPER CUPSeptember 2023February 2025Allow1710YesNo
18465615SPACER SPOOL WITH RETURN LINE TO CONNECT RIG BLOW OUT PREVENTOR TO MANAGED PRESSURE DRILLING CHOKESeptember 2023April 2025Allow1910NoNo
18242509ACTIVE MAGNETIC RANGING WHILE DRILLINGSeptember 2023November 2024Allow1410NoNo
18239649Wireline StandoffAugust 2023February 2025Allow1820NoNo
18277924FLUSHING ELEMENT, ROCK DRILLING MACHINE AND METHODAugust 2023November 2024Allow1510NoNo
18230949Rotary Steerable System with Multiple Rows of ActuatorsAugust 2023January 2025Allow1710YesNo
18229982METHOD AND APPARATUS FOR INSTALLING GEOTHERMAL HEAT EXCHANGERAugust 2023February 2025Allow1811NoNo
18363501FULLY AUTOMATED PERFORATING GUNAugust 2023February 2026Allow3050YesNo
18355076DRILLING FRAMEWORKJuly 2023January 2026Allow3030YesNo
18222984WIRED PIPE WITH INTERNAL SENSOR MODULEJuly 2023July 2024Allow1210NoNo
18222300Perforating Fluid Shock DampenerJuly 2023October 2024Allow1510YesNo
18260686Perforating Gun Assembly and ComponentsJuly 2023January 2025Allow1910NoNo
18269786STRUCTURAL MEMBERJune 2023January 2026Allow3110NoNo
18214681MOTOR VEHICLE WITH A CARGO SPACE AND A CARGO SPACE WELL BOUNDING THE CARGO SPACEJune 2023February 2026Allow3210NoNo
18340063FLOW CONTROL SYSTEM FOR USE IN A SUBTERRANEAN WELLJune 2023March 2025Allow2120YesNo
18340250METHODS FOR SHUT-IN PRESSURE ESCALATION ANALYSISJune 2023February 2026Allow3230NoYes
18338126DEVICE AND METHOD FOR REAMING A FLIGHT GAP OF A DRILL FLIGHTJune 2023October 2024Allow1610NoNo
18267548INSTEP ENCLOSURE ARRANGEMENT FOR A CABIN OF A VEHICLEJune 2023February 2026Allow3210NoNo
18332158RASPING SHOE FOR NON-ROTATIONAL DEPLOYMENT OF CASING STRINGJune 2023April 2025Allow2230NoNo
18204902DOWNHOLE PLUGJune 2023September 2024Allow1610NoNo
18202196Impulse Turbine Used To Measure Production Fluid Properties Downhole And Detect Water BreakthroughMay 2023February 2025Allow2110YesNo
18199033BUMPER ASSEMBLY WITH CRASH BOXESMay 2023December 2025Allow3110NoNo
18314719WELLBORE OBSERVATION SYSTEMMay 2023September 2024Abandon1710NoNo
18033963Assembly and cover system for a vehicle roof, vehicle roof for a motor vehicle, and process for manufacturing an assembly for a vehicle roofApril 2023March 2026Abandon3410NoNo
18250279MICROWAVE ROCK-BREAKING DRILLING DEVICEApril 2023April 2025Abandon2320NoNo
18137738Systems and Apparatus for Orienting One or More Tools in a Tool String and Methods of Manufacture, Assembly and Use ThereofApril 2023January 2025Allow2110NoNo
18300752SENSOR TRANSPORTATION DEVICEApril 2023November 2023Allow710NoNo
18248953WELL TOOL DEVICE FOR TRANSPORTING A HEAT GENERATING MIXTURE INTO A WELL PIPEApril 2023November 2024Allow1920YesNo
18295936Rear Facing Seat Mounting Partition StructureApril 2023February 2026Allow3510NoNo
18130728Depth Of Cut Control Responsive To Borehole TrajectoryApril 2023August 2024Allow1610YesNo
18192996GARNISH ASSEMBLY AND METHODMarch 2023February 2026Allow3410NoNo
18182799METHOD AND SYSTEM FOR DETERMINING ASPHALTENE ONSET PRESSUREMarch 2023November 2023Allow910NoNo
18109745SYSTEM AND METHOD FOR MEASUREMENT-WHILE-DRILLING (MWD) TOOL REMOVAL FROM A PIPEFebruary 2023July 2023Allow510YesNo
18164497SOLID COMPOSITE SHAFT AND SOLID CORE FILAMENT WINDINGFebruary 2023January 2026Abandon3521YesNo
18154109DOWNHOLE TOOL WITH TAPERED ACTUATORSJanuary 2023September 2023Allow810NoNo
18096405METHOD AND APPARATUS TO RECOVER CORES FROM DOWNHOLE ENVIRONMENTSJanuary 2023October 2024Allow2111NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner BUTCHER, CAROLINE N.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
9
Examiner Affirmed
7
(77.8%)
Examiner Reversed
2
(22.2%)
Reversal Percentile
35.7%
Lower than average

What This Means

With a 22.2% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
16
Allowed After Appeal Filing
3
(18.8%)
Not Allowed After Appeal Filing
13
(81.2%)
Filing Benefit Percentile
23.2%
Lower than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 18.8% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner BUTCHER, CAROLINE N - Prosecution Strategy Guide

Executive Summary

Examiner BUTCHER, CAROLINE N works in Art Unit 3676 and has examined 660 patent applications in our dataset. With an allowance rate of 80.3%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 32 months.

Allowance Patterns

Examiner BUTCHER, CAROLINE N's allowance rate of 80.3% places them in the 50% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by BUTCHER, CAROLINE N receive 1.98 office actions before reaching final disposition. This places the examiner in the 49% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by BUTCHER, CAROLINE N is 32 months. This places the examiner in the 53% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +17.0% benefit to allowance rate for applications examined by BUTCHER, CAROLINE N. This interview benefit is in the 58% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 31.9% of applications are subsequently allowed. This success rate is in the 66% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 47.0% of cases where such amendments are filed. This entry rate is in the 71% percentile among all examiners. Strategic Recommendation: This examiner shows above-average receptiveness to after-final amendments. If your amendments clearly overcome the rejections and do not raise new issues, consider filing after-final amendments before resorting to an RCE.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 28.6% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 31% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 52.6% of appeals filed. This is in the 23% percentile among all examiners. Of these withdrawals, 30.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 53.5% are granted (fully or in part). This grant rate is in the 54% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.6% of allowed cases (in the 62% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.8% of allowed cases (in the 58% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

    Relevant MPEP Sections for Prosecution Strategy

    • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
    • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
    • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
    • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
    • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
    • MPEP § 1214.07: Reopening prosecution after appeal

    Important Disclaimer

    Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

    No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

    Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

    Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.