Detailed information about the 100 most recent patent applications.
| Application Number | Title | Filing Date | Disposal Date | Disposition | Time (months) | Office Actions | Restrictions | Interview | Appeal |
|---|---|---|---|---|---|---|---|---|---|
| 19092615 | COMPOSITE CASING FOR A TURBINE ENGINE | March 2025 | June 2025 | Allow | 3 | 0 | 0 | Yes | No |
| 19074364 | TRANSVERSE-AXIS TORQUE TURBINE | March 2025 | September 2025 | Allow | 6 | 1 | 0 | Yes | No |
| 19069332 | AIRFOIL ASSEMBLY HAVING A COMPOSITE SPAR | March 2025 | May 2025 | Allow | 3 | 0 | 0 | No | No |
| 18960316 | IN SITU BALANCING MASS(ES) FOR AIRCRAFT POWERPLANT | November 2024 | September 2025 | Allow | 10 | 0 | 1 | Yes | No |
| 18853046 | BLADE PITCH CONTROL ARRANGEMENT | September 2024 | August 2025 | Allow | 11 | 1 | 0 | No | No |
| 18899373 | SYSTEM AND METHOD FOR CONTROLLING A SPEED OF A WIND TURBINE | September 2024 | May 2025 | Allow | 7 | 0 | 0 | Yes | No |
| 18813745 | SYSTEMS AND METHODS FOR INTERLEAVED SYNCHRONOUS PROPELLER SYSTEM | August 2024 | October 2025 | Abandon | 14 | 1 | 0 | No | No |
| 18836662 | MULTI-STAGE CENTRIFUGAL PUMP COMPRISING AN ASSEMBLY FOR COMPENSATING AXIAL FORCES | August 2024 | November 2025 | Allow | 15 | 0 | 0 | Yes | No |
| 18835233 | HYBRID METAL/COMPOSITE BLADE WITH TEXTILE ORIENTATION ADAPTED TO MECHANICAL STRESSES | August 2024 | February 2025 | Allow | 6 | 0 | 0 | Yes | No |
| 18770667 | PULSATING PNEUMATIC MOTOR | July 2024 | June 2025 | Allow | 12 | 0 | 0 | Yes | No |
| 18715101 | A Multi-Phase Rotor, System and Method for Maintaining a Stable Vapour Cavity | May 2024 | April 2025 | Allow | 10 | 0 | 0 | Yes | No |
| 18670178 | TURBINE POWERED BY EXHAUST FAN | May 2024 | November 2024 | Allow | 6 | 1 | 0 | No | No |
| 18641130 | FLUID CONNECTION FOR A HYDROMOTIVE MACHINE | April 2024 | April 2025 | Allow | 11 | 1 | 1 | No | No |
| 18630833 | SYSTEMS AND METHODS FOR FLUID FLOW BASED RENEWABLE ENERGY GENERATION | April 2024 | March 2025 | Allow | 12 | 1 | 0 | Yes | No |
| 18628949 | SYSTEM AND METHOD FOR DETECTING AND RESPONDING TO FAILURES IN A DRIVETRAIN OF A WIND TURBINE | April 2024 | January 2025 | Allow | 9 | 0 | 0 | Yes | No |
| 18611586 | DUCTED TURBINE WITH PASSIVE FLAPS FOR LOAD REDUCTION | March 2024 | November 2025 | Allow | 20 | 3 | 0 | Yes | No |
| 18605083 | FLOW CONVERSION TURBINES AND ASSEMBLIES | March 2024 | August 2024 | Allow | 5 | 1 | 0 | Yes | No |
| 18600896 | FAN STRUCTURE | March 2024 | September 2024 | Allow | 6 | 1 | 0 | Yes | No |
| 18600600 | SEGMENTED VARIABLE FAN OUTLET GUIDE VANE WITH CAM ASSEMBLY AND UNIQUE ACTUATION MECHANISMS | March 2024 | January 2025 | Allow | 10 | 0 | 0 | Yes | No |
| 18596896 | APPORTIONED SEGMENTS FOR A DUCTED TURBINE | March 2024 | March 2025 | Abandon | 13 | 1 | 0 | No | No |
| 18589832 | AIRCRAFT ENGINE ROTOR ASSEMBLY WITH GYROSCOPIC STIFFENER | February 2024 | January 2025 | Allow | 10 | 0 | 0 | Yes | No |
| 18582919 | HIGH PRESSURE TURBINE BLADE DOUBLE SCARF CUT | February 2024 | October 2025 | Allow | 20 | 4 | 0 | Yes | No |
| 18432130 | ROTOR AND AIRCRAFT | February 2024 | November 2024 | Allow | 9 | 1 | 0 | No | No |
| 18431506 | ADAPTIVE CLAMPING APPARATUS | February 2024 | October 2025 | Allow | 20 | 0 | 0 | No | No |
| 18428452 | ROTOR FOR RADIAL TURBINE | January 2024 | September 2024 | Allow | 7 | 1 | 0 | Yes | No |
| 18426009 | CONTAINMENT RING FOR GAS TURBINE ENGINE | January 2024 | October 2024 | Allow | 8 | 1 | 0 | No | No |
| 18580844 | HYDROELECTRIC TURBINE | January 2024 | April 2025 | Allow | 15 | 0 | 0 | Yes | No |
| 18579524 | PUMP CASING AND PUMP | January 2024 | November 2025 | Allow | 22 | 3 | 1 | Yes | No |
| 18412159 | HOLLOW MULTI-BLADE ROTOR, ASSEMBLY, AND METHOD OF MANUFACTURE | January 2024 | June 2025 | Allow | 17 | 2 | 1 | No | No |
| 18575913 | CONTROL METHOD AND APPARATUS FOR WIND TURBINE GENERATOR SET, AND DEVICE | January 2024 | May 2025 | Allow | 16 | 0 | 0 | No | No |
| 18390777 | Biased Passages For Turbomachinery | December 2023 | September 2024 | Allow | 9 | 0 | 1 | Yes | No |
| 18570743 | WIND FARM SYSTEM COMPRISING IMPROVED WIND GUIDE CONFIGURATION | December 2023 | October 2025 | Allow | 22 | 1 | 0 | Yes | No |
| 18568186 | DETERMINING TOWER TOP ACCELERATION OF A WIND TURBINE | December 2023 | May 2025 | Allow | 17 | 1 | 0 | Yes | No |
| 18528729 | LOCATING PLATE FOR USE WITH TURBINE SHROUD ASSEMBLIES | December 2023 | March 2025 | Allow | 15 | 1 | 0 | Yes | No |
| 18565720 | Centrifugal Pump Impeller With Tapered Shroud | November 2023 | September 2025 | Allow | 22 | 3 | 0 | Yes | No |
| 18565695 | Centrifugal Slurry Pump Impeller Shroud With Lip | November 2023 | November 2024 | Allow | 11 | 1 | 0 | Yes | No |
| 18512672 | ADJUSTABLE POSITION IMPELLER SHROUD FOR CENTRIFUGAL COMPRESSORS | November 2023 | March 2025 | Allow | 16 | 1 | 0 | No | No |
| 18290337 | NACELLE FOR A WIND TURBINE | November 2023 | September 2024 | Allow | 10 | 2 | 0 | No | No |
| 18559402 | FLUID TURBINE ASSEMBLY AND METHOD OF ACTUATION OF A FLUID TURBINE | November 2023 | May 2025 | Allow | 18 | 2 | 0 | Yes | No |
| 18289434 | WIND TURBINE BLADE HAVING A DE-ICING SYSTEM | November 2023 | March 2025 | Allow | 16 | 1 | 1 | Yes | No |
| 18557872 | DETERMINING WIND TURBINE ROTOR SPEED | October 2023 | March 2025 | Allow | 16 | 1 | 0 | Yes | No |
| 18476683 | BLADE AND ROTOR | September 2023 | May 2025 | Allow | 20 | 1 | 0 | Yes | No |
| 18283960 | SUPPLYING A MIXTURE OF AIR AND EXHAUST GAS TO A COMPRESSOR WHEEL OF A COMPRESSOR | September 2023 | January 2025 | Allow | 16 | 1 | 0 | Yes | No |
| 18549933 | SPRING-MOUNTED GEAR MECHANISM HOUSING | September 2023 | September 2025 | Allow | 24 | 3 | 0 | No | No |
| 18456126 | ROTOR ASSEMBLY FOR GAS TURBINE ENGINES | August 2023 | January 2025 | Allow | 16 | 1 | 0 | No | No |
| 18278632 | AIR AMPLIFIER | August 2023 | January 2025 | Allow | 16 | 2 | 0 | Yes | No |
| 18366800 | FAN ASSEMBLY FOR AN ENGINE HAVING REDUNDANT TRUNNION RETENTION | August 2023 | December 2024 | Allow | 16 | 0 | 1 | Yes | No |
| 18362346 | GAS TURBINE ENGINE HAVING A SENSOR ASSEMBLY TO DETECT TORSIONAL VIBRATION | July 2023 | January 2025 | Allow | 17 | 0 | 1 | Yes | No |
| 18263433 | CONTROLLING WIND TURBINE BASED ON WIND VEER | July 2023 | January 2025 | Allow | 18 | 1 | 0 | Yes | No |
| 18267465 | POWER CONVERTER HAVING BOOSTING MECHANISM WITH MULTI-SHAFT VERTICALLY STEPPED TURBINE | June 2023 | January 2024 | Allow | 7 | 1 | 0 | Yes | No |
| 18207003 | SYSTEMS AND METHODS FOR INTERLEAVED SYNCHRONOUS PROPELLER SYSTEM | June 2023 | July 2024 | Allow | 13 | 2 | 0 | Yes | No |
| 18328177 | AIRFOIL WITH SANDWICH COMPOSITE | June 2023 | February 2024 | Allow | 8 | 0 | 1 | No | No |
| 18203821 | STATOR VANE RING AND ROTARY MACHINE | May 2023 | April 2024 | Allow | 10 | 0 | 1 | Yes | No |
| 18323551 | ROTARY COMPRESSOR AND HOME APPLIANCE INCLUDING THE SAME | May 2023 | March 2024 | Allow | 10 | 0 | 0 | Yes | No |
| 18252957 | BLADE MADE OF COMPOSITE MATERIAL WITH AT LEAST PARTIALLY CERAMIC MATRIX | May 2023 | April 2025 | Allow | 23 | 2 | 0 | Yes | No |
| 18195592 | SHAFTLESS GENERATOR FOR A FLUID TURBINE | May 2023 | September 2023 | Allow | 4 | 1 | 0 | Yes | No |
| 18035326 | FAN | May 2023 | April 2024 | Allow | 12 | 0 | 0 | Yes | No |
| 18032763 | FAN BLADE WITH ZERO TIP DIHEDRAL AT THE HEAD | April 2023 | July 2025 | Allow | 27 | 3 | 0 | Yes | No |
| 18249269 | TURBOMOLECULAR VACUUM PUMP AND METHOD FOR MANUFACTURING A ROTOR | April 2023 | January 2025 | Abandon | 22 | 1 | 0 | No | No |
| 18134922 | HURRICANE VERTICAL-AXIS WIND TURBINES | April 2023 | March 2024 | Allow | 11 | 1 | 0 | Yes | No |
| 18295127 | VERTICAL AXIS WIND TURBINE WITH BRACING MEMBERS | April 2023 | April 2024 | Allow | 13 | 1 | 0 | No | No |
| 18186491 | NEGATIVE POISSON'S RATIO MATERIALS FOR PROPELLERS AND TURBINES | March 2023 | January 2024 | Allow | 10 | 1 | 0 | Yes | No |
| 18025829 | AXIAL FLOW FAN | March 2023 | March 2025 | Abandon | 24 | 2 | 0 | No | No |
| 18178897 | ROTOR BLADE WEIGHT SYSTEM | March 2023 | June 2024 | Allow | 15 | 2 | 0 | Yes | No |
| 18117378 | DEVICE WITH CONTROLLABLE PITCH PROPELLER FOR OUTBOARD MOTORS | March 2023 | January 2025 | Abandon | 22 | 1 | 0 | No | No |
| 18042004 | VACUUM PUMP | February 2023 | July 2025 | Abandon | 29 | 4 | 0 | No | No |
| 18006147 | GUIDE VANE ASSEMBLY FOR A TURBOMACHINE, COMPRESSOR MODULE, TURBOMACHINE, AND METHOD FOR PRODUCING A GUIDE VANE ASSEMBLY | January 2023 | July 2024 | Abandon | 18 | 1 | 0 | No | No |
| 18006290 | VACUUM PUMP, STATOR BLADE, AND SPACER | January 2023 | October 2025 | Abandon | 33 | 4 | 1 | Yes | No |
| 18095811 | INDUCED FLOW GENERATOR APPARATUS FOR POWER GENERATION | January 2023 | September 2024 | Allow | 20 | 0 | 1 | Yes | No |
| 18004866 | DETERMINING SUNLIGHT EFFECT ON WIND TURBINE TOWER INCLINATION USING TOWER TOP ACCELEROMETERS | January 2023 | December 2025 | Abandon | 35 | 2 | 0 | Yes | No |
| 18085841 | ROTARY MANIFOLD FOR A COHESION-TYPE DRIVE | December 2022 | March 2024 | Allow | 15 | 1 | 0 | No | No |
| 18010574 | ASSEMBLY AND METHOD FOR MONITORING AIR FLOW AT A SURFACE OF A ROTOR BLADE OF A WIND TURBINE | December 2022 | July 2025 | Abandon | 31 | 0 | 0 | No | No |
| 18010771 | WIND TURBINE BLADE CONTROL FOR A DEGRADATION STATE OF THE BLADE | December 2022 | April 2024 | Allow | 16 | 0 | 0 | Yes | No |
| 18009772 | Non-Clogging Pump | December 2022 | July 2024 | Allow | 19 | 2 | 0 | Yes | No |
| 17987056 | FUEL CELL FLUID MACHINE | November 2022 | April 2025 | Allow | 29 | 0 | 0 | Yes | No |
| 17979393 | THERMAL MANAGEMENT SYSTEM FOR GAS TURBINE ENGINE | November 2022 | December 2023 | Allow | 13 | 1 | 0 | Yes | No |
| 17997268 | PLATFORM FOR A FAN ROTOR OF AN AIRCRAFT TURBOMACHINE | October 2022 | June 2023 | Allow | 8 | 0 | 0 | Yes | No |
| 17946755 | COMPACT VERTICAL AXIS TURBINE | September 2022 | September 2023 | Abandon | 12 | 1 | 0 | No | No |
| 17906357 | STRUT COVER FOR A TURBINE | September 2022 | May 2023 | Allow | 8 | 1 | 0 | No | No |
| 17929823 | AIRCRAFT PROPELLER BLADE RADIATOR | September 2022 | February 2024 | Allow | 18 | 1 | 0 | No | No |
| 17908037 | COMPOSITE PLATFORM FOR A FAN OF AN AIRCRAFT TURBINE ENGINE | August 2022 | November 2023 | Allow | 15 | 1 | 0 | Yes | No |
| 17802877 | VARIABLE GEOMETRY TURBINE | August 2022 | April 2024 | Allow | 20 | 2 | 0 | No | No |
| 17820730 | METHOD OF REDUCING TURBINE WHEEL HIGH CYCLE FATIGUE IN SECTOR-DIVIDED DUAL VOLUTE TURBOCHARGERS | August 2022 | January 2024 | Allow | 17 | 1 | 0 | Yes | No |
| 17890162 | RIM DRIVEN THRUSTER WITH ADJUSTABLE ROTOR BLADE PITCH | August 2022 | October 2023 | Allow | 14 | 1 | 0 | No | No |
| 17800015 | DETERMINING A FREQUENCY OF AN OSCILLATING MOVEMENT OF A WIND TURBINE TOWER | August 2022 | August 2024 | Allow | 24 | 2 | 0 | Yes | No |
| 17880074 | Balanced Circumferential Seal | August 2022 | July 2023 | Allow | 11 | 2 | 0 | Yes | No |
| 17877093 | FUSED ROTOR | July 2022 | October 2023 | Allow | 14 | 2 | 1 | Yes | No |
| 17872665 | NEGATIVE POISSON'S RATIO MATERIALS FOR PROPELLERS AND TURBINES | July 2022 | February 2023 | Allow | 6 | 1 | 0 | Yes | No |
| 17867927 | Debris Exclusion Seal Guard for a Pump | July 2022 | March 2023 | Allow | 8 | 1 | 0 | Yes | No |
| 17861931 | VARIABLE VANE AND METHOD FOR OPERATING SAME | July 2022 | August 2023 | Allow | 13 | 2 | 0 | No | No |
| 17791331 | OUTFLOW REGION OF A COMPRESSOR, COMPRESSOR HAVING AN OUTFLOW REGION OF SAID TYPE, AND TURBOCHARGER HAVING THE COMPRESSOR | July 2022 | September 2023 | Allow | 14 | 0 | 0 | Yes | No |
| 17860028 | METHOD FOR IDENTIFYING AN EXTREME LOAD ON A WIND POWER INSTALLATION | July 2022 | August 2024 | Allow | 25 | 1 | 0 | Yes | No |
| 17856155 | AZIMUTH SENSORS IN WIND TURBINES | July 2022 | August 2023 | Allow | 14 | 1 | 1 | Yes | No |
| 17841431 | SYSTEMS AND METHODS FOR FLUID FLOW BASED RENEWABLE ENERGY GENERATION | June 2022 | January 2024 | Allow | 19 | 2 | 0 | Yes | No |
| 17834057 | SYSTEM AND METHOD FOR LEARNING-BASED PREDICTIVE FAULT DETECTION AND AVOIDANCE FOR WIND TURBINES | June 2022 | December 2025 | Abandon | 42 | 4 | 0 | Yes | No |
| 17830509 | VERTICAL AXIS WIND TURBINE AND BLADE THEREFOR | June 2022 | September 2023 | Allow | 16 | 3 | 0 | Yes | No |
| 17781286 | TURBINE ROTOR WHEEL FOR AN AIRCRAFT TURBOMACHINE | May 2022 | June 2023 | Allow | 13 | 0 | 0 | No | No |
| 17779114 | STOPPING A WIND TURBINE ROTOR USING PRE-SET PITCH RATES | May 2022 | November 2023 | Allow | 18 | 0 | 0 | Yes | No |
| 17779112 | STOPPING A WIND TURBINE ROTOR BASED ON STORED PITCH ANGLE SIGNAL | May 2022 | November 2023 | Allow | 17 | 0 | 0 | Yes | No |
| 17735885 | METHOD FOR OPERATING A WIND POWER INSTALLATION, WIND POWER INSTALLATION AND WIND FARM | May 2022 | October 2024 | Abandon | 30 | 2 | 1 | No | No |
This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LEGENDRE, CHRISTOPHER RYAN.
With a 31.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.
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, 27.5% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable reconsideration.
⚠ 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 LEGENDRE, CHRISTOPHER RYAN works in Art Unit 3745 and has examined 697 patent applications in our dataset. With an allowance rate of 73.5%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 38 months.
Examiner LEGENDRE, CHRISTOPHER RYAN's allowance rate of 73.5% places them in the 37% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.
On average, applications examined by LEGENDRE, CHRISTOPHER RYAN receive 2.11 office actions before reaching final disposition. This places the examiner in the 56% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.
The median time to disposition (half-life) for applications examined by LEGENDRE, CHRISTOPHER RYAN is 38 months. This places the examiner in the 31% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.
Conducting an examiner interview provides a +26.7% benefit to allowance rate for applications examined by LEGENDRE, CHRISTOPHER RYAN. This interview benefit is in the 74% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.
When applicants file an RCE with this examiner, 22.1% of applications are subsequently allowed. This success rate is in the 27% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.
This examiner enters after-final amendments leading to allowance in 44.2% of cases where such amendments are filed. This entry rate is in the 67% 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.
When applicants request a pre-appeal conference (PAC) with this examiner, 40.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 38% 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.
This examiner withdraws rejections or reopens prosecution in 43.1% of appeals filed. This is in the 10% percentile among all examiners. Of these withdrawals, 22.7% 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.
When applicants file petitions regarding this examiner's actions, 57.1% are granted (fully or in part). This grant rate is in the 60% 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'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 2.7% of allowed cases (in the 72% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).
Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:
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.