Detailed information about the 100 most recent patent applications.
| Application Number | Title | Filing Date | Disposal Date | Disposition | Time (months) | Office Actions | Restrictions | Interview | Appeal |
|---|---|---|---|---|---|---|---|---|---|
| 18893349 | Boomerang Hydro Multiplier | September 2024 | June 2025 | Allow | 9 | 2 | 0 | Yes | No |
| 18699148 | A WAVE POWER SYSTEM | September 2024 | February 2025 | Allow | 11 | 0 | 0 | Yes | No |
| 18577064 | AERONAUTICAL THRUSTER | January 2024 | June 2025 | Allow | 17 | 1 | 0 | No | No |
| 18528479 | ACOUSTIC ATTENUATION STRUCTURES | December 2023 | February 2025 | Allow | 14 | 1 | 1 | No | No |
| 18512221 | COVER APPARATUS FOR DIRECTING WATER FLOW AROUND A WATERWHEEL | November 2023 | August 2024 | Allow | 9 | 2 | 0 | Yes | No |
| 18559829 | SEALING ARRANGEMENT FOR A ROLLING BEARING SUBJECTED TO CENTRIFUGAL FORCES | November 2023 | March 2025 | Allow | 16 | 0 | 0 | Yes | No |
| 18471650 | PROPULSOR FAN ARRAY | September 2023 | December 2024 | Allow | 15 | 1 | 0 | No | No |
| 18547775 | WEAR ELEMENT FOR A SLURRY PUMP | August 2023 | March 2025 | Allow | 19 | 2 | 0 | Yes | No |
| 18449053 | SYSTEM AND METHOD FOR REDUCING A CLEARANCE GAP IN AN ENGINE | August 2023 | January 2025 | Allow | 17 | 1 | 0 | No | No |
| 18233750 | WEARABLE AIR CIRCULATION DEVICES AND METHODS OF USE | August 2023 | June 2024 | Allow | 10 | 1 | 0 | No | No |
| 18447350 | GUIDE VANES FOR FULLY REVERSIBLE TURBOMACHINERY | August 2023 | October 2024 | Allow | 15 | 1 | 0 | No | No |
| 18262488 | FAN AND CLEANING DEVICE | July 2023 | November 2024 | Allow | 16 | 2 | 0 | No | No |
| 18213990 | MULTIPLE CHANNEL DIFFUSER | June 2023 | April 2025 | Abandon | 21 | 2 | 0 | No | No |
| 18247435 | ACTIVE POWER BOOSTING IN WIND POWER PLANTS | March 2023 | May 2024 | Allow | 14 | 1 | 0 | Yes | No |
| 18173930 | COMPOSITE AIRFOIL ASSEMBLY HAVING A DOVETAIL PORTION | February 2023 | November 2024 | Abandon | 21 | 1 | 0 | Yes | No |
| 18161542 | SEALING DEVICE, ROTARY MACHINE, AND DESIGN METHOD FOR SEALING DEVICE | January 2023 | December 2023 | Allow | 10 | 0 | 0 | Yes | No |
| 18161281 | CENTRIFUGAL COMPRESSOR | January 2023 | October 2023 | Allow | 8 | 1 | 0 | No | No |
| 18001606 | SCROLL CASING OF CENTRIFUGAL FAN, CENTRIFUGAL FAN, AIR-CONDITIONING APPARATUS AND REFRIGERATION CYCLE APPARATUS INCLUDING THE SCROLL CASING | December 2022 | January 2025 | Allow | 25 | 1 | 0 | No | No |
| 18071906 | FAN ASSEMBLY AND VACUUM CLEANER HAVING SAME | November 2022 | March 2025 | Allow | 27 | 2 | 1 | No | No |
| 18070963 | FAN ASSEMBLY AND VACUUM CLEANER HAVING SAME | November 2022 | March 2025 | Allow | 27 | 2 | 1 | No | No |
| 18059002 | PITCH-FOLD LOCK | November 2022 | October 2024 | Allow | 22 | 1 | 1 | No | No |
| 17996810 | BLADE PIVOT WITH ADJUSTABLE ORIENTATION AND PROTECTED INTEGRITY FOR A TURBOMACHINE FAN HUB | October 2022 | April 2023 | Allow | 6 | 0 | 0 | Yes | No |
| 17995466 | HINGE FOR ARTICULATING TWO PANELS OF AN AIRCRAFT PROPULSION ASSEMBLY | October 2022 | August 2024 | Allow | 22 | 0 | 0 | Yes | No |
| 17956314 | TURBINE CIRCUMFERENTIAL DOVETAIL LEAKAGE REDUCTION | September 2022 | October 2023 | Allow | 12 | 1 | 0 | No | No |
| 17914422 | IMPELLER AND CENTRIFUGAL FAN | September 2022 | November 2024 | Allow | 26 | 2 | 0 | Yes | No |
| 17913475 | A NACELLE WITH PRE-TENSIONED BRACE CABLES | September 2022 | February 2024 | Allow | 17 | 1 | 0 | No | No |
| 17896283 | FLUID EXCHANGE APPARATUSES AND METHODS OF EXCHANGING FLUIDS BETWEEN STREAMS | August 2022 | September 2023 | Allow | 13 | 1 | 0 | No | No |
| 17802830 | FAN ROTOR WITH VARIABLE PITCH BLADES AND TURBOMACHINE EQUIPPED WITH SUCH A ROTOR | August 2022 | February 2024 | Allow | 17 | 0 | 0 | Yes | No |
| 17814500 | CONVERTIPLANE WITH STOPPED ROTORS, AND REPOSITIONABLE ROTOR BLADES | July 2022 | June 2024 | Allow | 23 | 1 | 1 | Yes | No |
| 17866512 | TURBINE MODULE FOR A TURBOMACHINE | July 2022 | June 2024 | Allow | 23 | 2 | 0 | Yes | Yes |
| 17758936 | A DIFFUSER WITH NON-CONSTANT DIFFUSER VANES PITCH AND CENTRIFUGAL TURBOMACHINE INCLUDING SAID DIFFUSER | July 2022 | November 2024 | Allow | 28 | 3 | 0 | No | No |
| 17783356 | SYSTEM AND METHOD FOR MONITORING ROTOR BLADE HEALTH OF A WIND TURBINE | June 2022 | October 2024 | Allow | 29 | 2 | 0 | Yes | No |
| 17661222 | ADDITIVELY MANUFACTURES MULTI-METALLIC ADAPTIVE OR ABRADABLE ROTOR TIP SEALS | April 2022 | October 2024 | Allow | 30 | 2 | 1 | Yes | No |
| 17658461 | ROTOR HAVING CRACK MITIGATOR | April 2022 | June 2023 | Allow | 14 | 2 | 0 | No | No |
| 17766143 | TURBINE ARRANGEMENT INCORPORATING AN OIL RECOVERY CIRCUMFERENTIAL TROUGH | April 2022 | March 2024 | Allow | 24 | 1 | 0 | Yes | No |
| 17763708 | METHOD OF CONTROLLING A WIND TURBINE AND CONTROLLER FOR A WIND TURBINE | March 2022 | May 2024 | Allow | 26 | 2 | 0 | Yes | No |
| 17688772 | FIXED AND PITCHING BLADES, SPAR SHAFT, BEARINGS AND MATERIALS FOR MARINE CURRENT TURBINE | March 2022 | February 2024 | Allow | 23 | 2 | 1 | Yes | No |
| 17682189 | SYSTEM AND METHOD FOR CONTROLLING WIND FARM OPERATION DURING A WEAK GRID CONDITION | February 2022 | March 2024 | Allow | 25 | 2 | 0 | Yes | No |
| 17679502 | PROPULSOR FAN ARRAY | February 2022 | April 2023 | Allow | 14 | 1 | 0 | Yes | No |
| 17637393 | DETECTION OF ABNORMAL CONDITIONS ON A WIND TURBINE GENERATOR | February 2022 | February 2025 | Abandon | 36 | 2 | 0 | No | No |
| 17651824 | TURBINE BLADE TIP SHROUD SURFACE PROFILES | February 2022 | August 2022 | Allow | 6 | 0 | 0 | No | No |
| 17591210 | COMPOSITE FAN CASE CONTAINMENT HOOK AND IMPROVED FORWARD DEBRIS CAPTURE | February 2022 | October 2024 | Allow | 32 | 3 | 1 | Yes | No |
| 17563624 | FLOW CHANNEL FORMING PLATE, BLADE AND GAS TURBINE INCLUDING THIS, AND METHOD OF MANUFACTURING FLOW CHANNEL FORMING PLATE | December 2021 | October 2024 | Allow | 33 | 3 | 1 | No | No |
| 17644229 | TURBINE TIP SHROUD REMOVAL FEATURE | December 2021 | July 2024 | Abandon | 31 | 2 | 1 | No | No |
| 17546140 | SERIAL AXIAL FAN | December 2021 | April 2024 | Allow | 29 | 2 | 1 | Yes | No |
| 17544468 | METHOD OF ADJUSTING AT LEAST ONE ROTOR BLADE OF A WIND TURBINE AND A SYSTEM AND A WIND TURBINE FOR CARRYING OUT THE METHOD | December 2021 | September 2023 | Allow | 21 | 1 | 0 | No | No |
| 17541859 | DOVETAILED COMPOSITE OUTLET GUIDE VANE ASSEMBLY AND METHOD OF ASSEMBLING THEREOF | December 2021 | November 2024 | Abandon | 36 | 4 | 0 | No | No |
| 17606860 | SUPERCHARGER AND METHOD FOR CONNECTING PIPE IN SUPERCHARGER | October 2021 | April 2024 | Allow | 30 | 1 | 0 | No | No |
| 17451958 | IMPELLER FOR AIRCRAFT ENGINE | October 2021 | October 2023 | Allow | 24 | 3 | 0 | No | No |
| 17498164 | FAN SILENCER MODULE | October 2021 | August 2024 | Allow | 34 | 3 | 1 | Yes | No |
| 17593793 | IMPROVED DEVICE FOR ATTACHING BLADES IN A CONTRA-ROTATING TURBINE | September 2021 | December 2022 | Allow | 14 | 1 | 0 | No | No |
| 17436849 | SMALL HYDROELECTRIC POWER GENERATION APPARATUS | September 2021 | June 2023 | Allow | 22 | 2 | 0 | No | No |
| 17461113 | PASSIVE FLOW MODULATION DEVICE | August 2021 | October 2023 | Allow | 25 | 2 | 1 | No | No |
| 17385271 | NESTED VANE ARRANGEMENT FOR GAS TURBINE ENGINE | July 2021 | June 2023 | Allow | 22 | 1 | 1 | No | No |
| 17421654 | WIND TURBINE AND METHOD FOR OPERATING A WIND TURBINE | July 2021 | October 2022 | Allow | 15 | 0 | 1 | No | No |
| 17353002 | CENTRIFUGAL PUMP DEVICE | June 2021 | April 2023 | Allow | 22 | 2 | 0 | Yes | No |
| 17416897 | TURBOMACHINE ASSEMBLY COMPRISING FAN BLADES WITH AN EXTENDED TRAILING EDGE | June 2021 | August 2022 | Allow | 13 | 1 | 0 | No | No |
| 17340314 | Turbine Guide Apparatus | June 2021 | October 2022 | Allow | 16 | 2 | 0 | No | No |
| 17339604 | WARM START CONTROL OF AN ACTIVE CLEARANCE CONTROL FOR A GAS TURBINE ENGINE | June 2021 | January 2024 | Allow | 31 | 3 | 0 | Yes | No |
| 17329223 | ROTOR AND TURBO MACHINE INCLUDING SAME | May 2021 | November 2022 | Allow | 18 | 3 | 0 | No | No |
| 17328706 | PRELOAD SLEEVE FOR A COLLET-MOUNTED BLADE DOVETAIL | May 2021 | November 2024 | Abandon | 41 | 4 | 1 | No | No |
| 17246705 | COMPACT FITTING FOR COUPLING BLADE TO ROTOR HUB | May 2021 | April 2024 | Abandon | 35 | 4 | 0 | Yes | No |
| 17197140 | GAS TURBINE ENGINE AIRFOIL FAIRING WITH RIB HAVING RADIAL NOTCH | March 2021 | May 2022 | Allow | 14 | 1 | 0 | No | No |
| 17274742 | REMOVABLE SUPPORT INTERFACE FOR AN ANNULAR TURBOMACHINE CASING | March 2021 | August 2022 | Allow | 17 | 0 | 1 | No | No |
| 17181113 | TURBINE VANE WITH DUST TOLERANT COOLING SYSTEM | February 2021 | March 2023 | Allow | 25 | 2 | 1 | Yes | No |
| 17180035 | TURBINE VANE WITH DUST TOLERANT COOLING SYSTEM | February 2021 | May 2022 | Allow | 15 | 1 | 1 | No | No |
| 17266934 | OPERATING A WIND TURBINE DURING SERVICE | February 2021 | April 2023 | Allow | 26 | 2 | 0 | Yes | No |
| 17160890 | DETECTING DAMAGE TO A GAS TURBINE ENGINE | January 2021 | July 2022 | Allow | 18 | 1 | 0 | No | No |
| 17160895 | Turbine Wheel and Wire Retention Pin Fixation Method for Turbine Wheel | January 2021 | July 2022 | Allow | 18 | 1 | 0 | No | No |
| 17155065 | BLADE COUPLING STRUCTURE AND TURBINE SYSTEM HAVING THE SAME | January 2021 | February 2022 | Allow | 13 | 1 | 0 | No | No |
| 17149240 | IMPINGEMENT INSERT FOR A TURBOMACHINE COMPONENT, TURBOMACHINE COMPONENT AND GAS TURBINE HAVING THE SAME | January 2021 | November 2022 | Allow | 22 | 3 | 0 | No | No |
| 17137613 | CENTRIFUGAL COMPRESSOR DIFFUSER STRUCTURE AND CENTRIFUGAL COMPRESSOR | December 2020 | May 2022 | Abandon | 16 | 1 | 0 | No | No |
| 17126109 | OUTPUT CONE OF AN AIRCRAFT PROPULSIVE ASSEMBLY FORMING AN ACOUSTIC TREATMENT SYSTEM WITH AT LEAST TWO DEGREES OF FREEDOM | December 2020 | June 2024 | Allow | 42 | 4 | 1 | Yes | No |
| 16973663 | HOLDING SYSTEM FOR THE DISMANTLING OF A BLADE WHEEL | December 2020 | July 2022 | Allow | 19 | 2 | 0 | No | No |
| 17113381 | IMPELLER WITH REDUCED MASS INERTIA FOR A RESPIRATION THERAPY APPLIANCE | December 2020 | July 2023 | Allow | 32 | 2 | 0 | No | No |
| 17113227 | HUMIDIFICATION AND AIR CLEANING APPARATUS | December 2020 | October 2022 | Allow | 22 | 2 | 0 | No | No |
| 17055243 | DOVETAIL SLOT FOR USE WITH ROTOR ASSEMBLIES | November 2020 | March 2022 | Allow | 16 | 1 | 0 | Yes | No |
| 17038556 | ACOUSTIC ATTENUATION STRUCTURES | September 2020 | September 2023 | Allow | 35 | 2 | 1 | Yes | No |
| 17029245 | ACOUSTIC LINER AND GAS TURBINE ENGINE WITH SUCH ACOUSTIC LINER | September 2020 | August 2024 | Allow | 47 | 4 | 1 | Yes | No |
| 16982902 | LOCKING SPACER ASSEMBLY, CORRESPONDING BLADE ASSEMBLY, METHOD FOR INSTALLING A LOCKING SPACER | September 2020 | February 2022 | Allow | 17 | 1 | 0 | No | No |
| 16976257 | METHOD FOR CONTROLLING A GAP MINIMIZATION OF A GAS TURBINE | August 2020 | March 2021 | Allow | 6 | 1 | 0 | No | No |
| 16993326 | SELF-LUBRICATING BLADE ROOT/DISK INTERFACE | August 2020 | November 2023 | Allow | 39 | 4 | 0 | No | Yes |
| 16881895 | TURBINE CIRCUMFERENTIAL DOVETAIL LEAKAGE REDUCTION | May 2020 | June 2022 | Allow | 25 | 3 | 1 | Yes | No |
| 16879114 | PITCH-FOLD LOCK | May 2020 | August 2022 | Allow | 27 | 1 | 1 | Yes | No |
| 16804280 | ROTORS FOR USE IN CAUSTIC ENVIRONMENTS | February 2020 | July 2025 | Allow | 60 | 5 | 0 | No | Yes |
| 16796520 | PROPELLER FOR BOAT PROPULSION APPARATUS | February 2020 | February 2022 | Allow | 24 | 1 | 0 | No | No |
| 16796241 | MULTI-DISK BLADED ROTOR ASSEMBLY FOR ROTATIONAL EQUIPMENT | February 2020 | January 2022 | Allow | 23 | 1 | 0 | No | No |
| 16873098 | Bamboo wind turbine | January 2020 | October 2022 | Abandon | 33 | 1 | 1 | No | No |
| 16746022 | TURBINE BLADE AND STEAM TURBINE | January 2020 | August 2023 | Allow | 43 | 5 | 0 | No | No |
| 16738543 | ROTOR, TURBINE EQUIPPED WITH SUCH A ROTOR AND TURBOMACHINE EQUIPPED WITH SUCH A TURBINE | January 2020 | December 2021 | Allow | 23 | 1 | 0 | No | No |
| 16625891 | VERTICAL WIND TURBINE COMPRISING ROTOR BLADE-SUPPORTING PITCH MOTOR, AS WELL AS KIT FOR SAME, AND METHOD FOR OPERATING SAME | December 2019 | August 2022 | Allow | 32 | 3 | 0 | Yes | No |
| 16719063 | Axial Flow Turbine | December 2019 | September 2021 | Allow | 21 | 1 | 0 | No | No |
| 16700335 | COOLED TURBINE ROTOR BLADE | December 2019 | July 2021 | Abandon | 20 | 1 | 0 | No | No |
| 16613978 | Stator Blade, Compressor Structure and Compressor | November 2019 | May 2022 | Allow | 30 | 2 | 0 | No | No |
| 16680912 | COMPRESSOR | November 2019 | November 2021 | Allow | 24 | 1 | 0 | No | No |
| 16672938 | NEGATIVE THERMAL EXPANSION COMPRESSOR CASE FOR IMPROVED TIP CLEARANCE | November 2019 | October 2021 | Allow | 23 | 1 | 0 | No | No |
| 16667150 | VANE COMPRISING A STRUCTURE MADE OF COMPOSITE MATERIAL AND A METAL STIFFENING PART | October 2019 | August 2021 | Allow | 22 | 1 | 0 | Yes | No |
| 16661212 | TURBOMACHINE BLADE | October 2019 | June 2021 | Allow | 20 | 1 | 0 | No | No |
| 16606366 | WIND TURBINE BLADE AND WIND TURBINE POWER GENERATING APPARATUS | October 2019 | February 2023 | Allow | 40 | 3 | 0 | No | Yes |
| 16657135 | BAFFLE WITH IMPINGEMENT HOLES | October 2019 | March 2022 | Allow | 29 | 2 | 1 | Yes | No |
This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LANGE, ERIC A.
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, 55.6% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.
✓ Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.
Examiner LANGE, ERIC A works in Art Unit 3745 and has examined 167 patent applications in our dataset. With an allowance rate of 79.6%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 24 months.
Examiner LANGE, ERIC A's allowance rate of 79.6% places them in the 41% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.
On average, applications examined by LANGE, ERIC A receive 1.75 office actions before reaching final disposition. This places the examiner in the 52% 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 LANGE, ERIC A is 24 months. This places the examiner in the 74% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.
Conducting an examiner interview provides a +13.6% benefit to allowance rate for applications examined by LANGE, ERIC A. This interview benefit is in the 55% 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, 36.8% of applications are subsequently allowed. This success rate is in the 80% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.
This examiner enters after-final amendments leading to allowance in 44.3% of cases where such amendments are filed. This entry rate is in the 61% 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, 160.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 91% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences are highly effective with this examiner compared to others. Before filing a full appeal brief, strongly consider requesting a PAC. The PAC provides an opportunity for the examiner and supervisory personnel to reconsider the rejection before the case proceeds to the PTAB.
This examiner withdraws rejections or reopens prosecution in 100.0% of appeals filed. This is in the 98% percentile among all examiners. Of these withdrawals, 71.4% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.
When applicants file petitions regarding this examiner's actions, 46.2% are granted (fully or in part). This grant rate is in the 52% 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 0.0% of allowed cases (in the 39% percentile). This examiner makes examiner's amendments less often than average. You may need to make most claim amendments yourself.
Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 40% percentile). This examiner issues Quayle actions less often than average. Allowances may come directly without a separate action for formal matters.
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.