Detailed information about the 100 most recent patent applications.
| Application Number | Title | Filing Date | Disposal Date | Disposition | Time (months) | Office Actions | Restrictions | Interview | Appeal |
|---|---|---|---|---|---|---|---|---|---|
| 19136060 | HOT AIR ENGINE | June 2025 | February 2026 | Allow | 9 | 0 | 0 | No | No |
| 19208674 | SOLAR ENERGY SYSTEM WITH RANKINE CYCLE | May 2025 | July 2025 | Allow | 2 | 1 | 0 | No | No |
| 19208665 | RANKINE ENERGY SYSTEM BASED ON SOLAR POWER | May 2025 | July 2025 | Allow | 2 | 1 | 0 | No | No |
| 19201398 | Organic Rankine Cycle Decompression Heat Engine | May 2025 | October 2025 | Allow | 5 | 1 | 0 | Yes | No |
| 19190856 | SOLAR POWER ENERGY SYSTEM WITH RANKINE ENGINE | April 2025 | July 2025 | Allow | 2 | 1 | 0 | No | No |
| 19185573 | METHOD FOR GENERATING ELECTRICITY WITH SOLAR HEAT PIPE ABSORBER | April 2025 | July 2025 | Allow | 3 | 1 | 0 | No | No |
| 19184093 | STEAM POWER CYCLE THERMOELECTRIC DECOUPLING SYSTEM, AND CONTROL METHOD, DEVICE, MEDIUM, AND PRODUCT THEREOF | April 2025 | June 2025 | Allow | 2 | 0 | 0 | No | No |
| 19171727 | SYSTEMS AND METHODS FOR DETECTING DEGRADATION OF CATALYST MEMBERS OF AN AFTERTREATMENT SYSTEM | April 2025 | February 2026 | Allow | 10 | 0 | 0 | No | No |
| 19089884 | EXHAUST AFTERTREATMENT UNIT | March 2025 | February 2026 | Allow | 10 | 0 | 0 | No | No |
| 19102299 | TANGENTIAL INTERNAL COMBUSTION ENGINE | February 2025 | February 2026 | Allow | 12 | 0 | 0 | No | No |
| 19036900 | AMBIENT TEMPERATURE THERMAL ADAPTER FOR SUPERCRITICAL CARBON DIOXIDE POWER CYCLE | January 2025 | March 2026 | Allow | 14 | 1 | 0 | No | No |
| 19028879 | FLUID COMPRESSION APPARATUS AND METHOD | January 2025 | August 2025 | Allow | 7 | 1 | 0 | No | No |
| 19029489 | Combined Power Generation using Geothermal and Solar Energy | January 2025 | February 2026 | Allow | 13 | 1 | 0 | No | No |
| 19025071 | COMBINED CYCLE POWER GENERATION FACILITY | January 2025 | February 2026 | Allow | 13 | 1 | 0 | No | No |
| 19019254 | HEAT PUMP ENGINE | January 2025 | January 2026 | Allow | 12 | 1 | 0 | No | No |
| 19014594 | MULTI-PARAMETER INTEGRATED TEST SYSTEM FOR DEEP GEOTHERMAL IN-SITU POWER GENERATION | January 2025 | March 2025 | Allow | 2 | 0 | 0 | No | No |
| 18985537 | HYDRAULIC DEVICE FOR A PITCH SYSTEM, A PITCH SYSTEM AND WIND TURBINE | December 2024 | December 2025 | Allow | 12 | 0 | 0 | Yes | No |
| 18976266 | PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE | December 2024 | October 2025 | Allow | 10 | 1 | 0 | No | No |
| 18967499 | PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORT | December 2024 | May 2025 | Allow | 5 | 1 | 0 | Yes | No |
| 18868237 | METHOD FOR STORING COMPRESSED AIR ENERGY | November 2024 | September 2025 | Allow | 10 | 0 | 0 | No | No |
| 18953739 | CENTRIFUGAL COMPRESSOR | November 2024 | May 2025 | Allow | 5 | 0 | 0 | No | No |
| 18867137 | GEOTHERMAL POWER GENERATION SYSTEMS WITH PRESSURE EXCHANGERS | November 2024 | January 2026 | Allow | 14 | 1 | 0 | Yes | No |
| 18949922 | METHOD AND SYSTEMS FOR FREE-FLOATING NAUTICAL STATIONKEEPING | November 2024 | November 2025 | Allow | 12 | 1 | 0 | No | No |
| 18943418 | EXHAUST GAS TEMPERATURE CONTROL | November 2024 | July 2025 | Allow | 8 | 0 | 0 | No | No |
| 18939376 | AIR COMPRESSOR | November 2024 | November 2025 | Allow | 12 | 0 | 0 | No | No |
| 18938072 | SYSTEMS AND METHODS FOR CARBON DIOXIDE-BASED ENERGY STORAGE AND POWER GENERATION | November 2024 | October 2025 | Allow | 12 | 2 | 0 | No | No |
| 18929777 | ACTUATION APPARATUS AND ACTUATION METHOD | October 2024 | June 2025 | Allow | 8 | 1 | 0 | No | No |
| 18929918 | ACTUATION APPARATUS AND ELECTRONIC PRODUCT | October 2024 | March 2025 | Allow | 4 | 0 | 0 | No | No |
| 18927999 | Pump Assembly and Proportioning Machine | October 2024 | August 2025 | Allow | 9 | 0 | 0 | No | No |
| 18921278 | PUMPED HEAT ENERGY STORAGE SYSTEM WITH LOAD FOLLOWING | October 2024 | June 2025 | Allow | 7 | 1 | 0 | No | No |
| 18920128 | COMPRESSOR TRAIN FOR CHEMICAL PLANT | October 2024 | June 2025 | Allow | 8 | 1 | 0 | No | No |
| 18918716 | SOFT ACTUATOR FIXING METHOD AND SOFT ACTUATOR DEVICE | October 2024 | October 2025 | Allow | 12 | 2 | 0 | Yes | No |
| 18913979 | THERMAL ENERGY STORAGE SYSTEM WITH A HEAT PUMP FOR IMPROVED EFFICIENCY | October 2024 | February 2026 | Allow | 16 | 1 | 0 | No | No |
| 18909497 | LIQUID INFUSION DEVICE EQUIPPED WITH A MAGNETIC RETURN-TO-ORIGIN AND FIXATION MEANS | October 2024 | August 2025 | Allow | 11 | 1 | 0 | No | No |
| 18854144 | BATTERY OPERATED MOLTEN METAL PUMP | October 2024 | March 2026 | Allow | 17 | 1 | 0 | No | No |
| 18906902 | CHECK VALVE FOR RAT RE-STOW PUMP | October 2024 | October 2025 | Allow | 12 | 1 | 0 | No | No |
| 18829136 | PASSIVE CONTROL SYSTEM FOR AN EVERTING SHEATH | September 2024 | November 2025 | Allow | 14 | 0 | 0 | No | No |
| 18844709 | SEALED COMPRESSOR | September 2024 | January 2026 | Allow | 16 | 1 | 0 | Yes | No |
| 18842336 | APPARATUS FOR ENERGY CONVERSION | August 2024 | November 2025 | Allow | 15 | 1 | 0 | No | No |
| 18815663 | SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGY | August 2024 | February 2025 | Allow | 5 | 1 | 0 | No | No |
| 18804191 | RENEWABLE GEOTHERMAL ENERGY HARVESTING FROM OFFSHORE WELLS AND METHODS | August 2024 | September 2025 | Allow | 13 | 1 | 0 | No | No |
| 18800475 | THERMALLY-POWERED POLYMER FIBER ACTUATORS AND ARTICLES INCLUDING SAME | August 2024 | July 2025 | Allow | 11 | 1 | 0 | No | No |
| 18837179 | METHOD AND IMPROVED DEVICE FOR CONVERTING THERMAL ENERGY INTO KINETIC ENERGY | August 2024 | October 2025 | Allow | 14 | 1 | 0 | Yes | No |
| 18793665 | SYSTEMS AND METHODS FOR POWER DISTRIBUTION AND HARNESSING OF MARINE HYDROKINETIC ENERGY | August 2024 | March 2026 | Allow | 19 | 1 | 0 | No | No |
| 18789987 | GAS TURBINE ENGINE WITH INERTIALLY DAMPED SEALS | July 2024 | May 2025 | Allow | 9 | 1 | 0 | Yes | No |
| 18790958 | STIRLING ENGINE | July 2024 | April 2025 | Allow | 8 | 1 | 0 | Yes | No |
| 18834706 | HEAT EXCHANGER PROVIDED WITH AN AIR DIFFUSION SYSTEM AND CORRESPONDING TURBOMACHINE | July 2024 | June 2025 | Allow | 10 | 1 | 0 | No | No |
| 18256039 | CONDENSATION SYSTEM AND METHOD FOR ELECTRIC POWER PLANT | July 2024 | July 2025 | Abandon | 25 | 1 | 0 | No | No |
| 18833438 | Vacuum pump and facility for processing and/or packaging food products | July 2024 | October 2025 | Allow | 15 | 1 | 0 | No | No |
| 18783338 | MAGNETIC SUCTION FAN | July 2024 | April 2025 | Allow | 9 | 0 | 0 | No | No |
| 18771356 | GEOPRESSURE AND GEOTHERMAL POWER SYSTEM | July 2024 | February 2025 | Allow | 7 | 1 | 0 | No | No |
| 18721386 | ACTUATOR ASSEMBLY | June 2024 | June 2025 | Allow | 11 | 1 | 0 | No | No |
| 18720149 | POWER GENERATION SYSTEM | June 2024 | November 2024 | Allow | 5 | 0 | 0 | No | No |
| 18743980 | SYSTEM FOR RESTORATION OF A SALTY BODY OF WATER THAT HARNESSES HYDRO, SOLAR, AND GEOTHERMAL ENERGY, TO BE USED IN REMOTE LOCATIONS AND DIFFERENT APPLICATIONS INCLUDING THE PRODUCTION OF DISTILLED WATER FROM A SALTY BODY OF WATER | June 2024 | October 2025 | Allow | 17 | 2 | 0 | No | No |
| 18738537 | EXOTHERMIC REACTION ENERGY SYSTEM | June 2024 | February 2026 | Allow | 21 | 1 | 0 | No | No |
| 18717624 | AN ALPHA TYPE STIRLING ENGINE | June 2024 | September 2025 | Allow | 16 | 0 | 0 | No | No |
| 18735587 | GeoHeat Harvesting Enhancement | June 2024 | December 2024 | Allow | 6 | 2 | 0 | No | No |
| 18713797 | A SYSTEM AND A METHOD FOR CONTROLLING THE POWER OUTPUT OF A STIRLING ENGINE | May 2024 | September 2025 | Allow | 16 | 0 | 0 | No | No |
| 18713701 | FLUID PRESSURE ACTUATOR | May 2024 | February 2025 | Allow | 9 | 1 | 0 | No | No |
| 18711333 | MITIGATING FLUID LOSS OR INFLOW IN A CLOSED-LOOP GEOTHERMAL SYSTEM | May 2024 | April 2025 | Allow | 11 | 1 | 0 | No | No |
| 18711182 | ENGINE | May 2024 | March 2025 | Allow | 10 | 1 | 0 | Yes | No |
| 18710119 | GEOTHERMAL CARBON CAPTURE SYSTEM | May 2024 | August 2025 | Allow | 16 | 0 | 0 | Yes | No |
| 18708913 | SUPERCRITICAL CARBON DIOXIDE REGENERATIVE BRAYTON CYCLE WITH MULTIPLE RECUPERATORS AND AUXILIARY COMPRESSORS | May 2024 | September 2025 | Allow | 16 | 1 | 0 | No | No |
| 18708219 | THERMAL OSCILLATION SYSTEMS | May 2024 | April 2025 | Allow | 11 | 1 | 0 | Yes | No |
| 18654996 | SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGY | May 2024 | September 2024 | Allow | 5 | 1 | 0 | No | No |
| 18704599 | BUOYANT FORCE UTILIZATION DEVICE | April 2024 | June 2025 | Allow | 14 | 2 | 0 | No | No |
| 18644239 | POWER MACHINE | April 2024 | February 2025 | Allow | 9 | 0 | 0 | No | No |
| 18631960 | Shape Memory Alloy (SMA) Bimorph Actuators With Reduced Wire Exit Angle | April 2024 | August 2025 | Allow | 16 | 3 | 0 | No | No |
| 18630943 | REACTIVE BY-PRODUCTS COLLECTION SYSTEM | April 2024 | April 2025 | Allow | 12 | 0 | 0 | No | No |
| 18698658 | LNG COLD POWER GENERATION USING MIXED WORKING FLUID | April 2024 | January 2026 | Allow | 22 | 1 | 0 | No | No |
| 18625842 | TURBINE OVERSPEED PROTECTION | April 2024 | January 2025 | Allow | 9 | 1 | 0 | No | No |
| 18621265 | Automatic vacuum sealer | March 2024 | October 2025 | Allow | 19 | 0 | 0 | No | No |
| 18621750 | GAS MIXING DEVICE AND MOVING OBJECT | March 2024 | November 2024 | Allow | 7 | 1 | 0 | No | No |
| 18622374 | SHIP COGENERATION SYSTEM USING WASTE HEAT OF LNG ENGINE SHIP RECOVERED THROUGH ECONOMIZER | March 2024 | November 2025 | Allow | 20 | 1 | 0 | No | No |
| 18614901 | SYSTEMS FOR GENERATING GEOTHERMAL POWER IN AN ORGANIC RANKINE CYCLE OPERATION DURING HYDROCARBON PRODUCTION BASED ON WELLHEAD FLUID TEMPERATURE | March 2024 | September 2024 | Allow | 6 | 1 | 0 | Yes | No |
| 18694323 | DOWNHOLE HEAT EXCHANGER FOR GEOTHERMAL POWER SYSTEMS | March 2024 | June 2025 | Abandon | 15 | 1 | 0 | No | No |
| 18612499 | COMPRESSION DEVICE AND METHOD | March 2024 | October 2025 | Allow | 19 | 1 | 0 | No | No |
| 18604755 | ELECTRIC SUBMERSIBLE PUMP (ESP) SEAL UNIT | March 2024 | November 2025 | Allow | 20 | 1 | 0 | No | No |
| 18601605 | MOBILE UNDERWATER POWER GENERATION SYSTEM FOR OCEAN-GOING VESSEL | March 2024 | July 2025 | Allow | 17 | 1 | 0 | No | No |
| 18601194 | PUMP CONTROL OF CLOSED CYCLE POWER GENERATION SYSTEM | March 2024 | April 2025 | Abandon | 13 | 1 | 0 | No | No |
| 18600578 | SODIUM-CHLORINE BOILER | March 2024 | July 2024 | Allow | 4 | 0 | 0 | Yes | No |
| 18690625 | SUBMERGED FIN FOR WAVE ENERGY CONVERSION | March 2024 | July 2025 | Allow | 17 | 2 | 0 | Yes | No |
| 18595679 | SYSTEMS AND METHODS FOR GENERATION OF ELECTRICAL POWER IN AN ORGANIC RANKINE CYCLE OPERATION | March 2024 | July 2024 | Allow | 5 | 1 | 0 | No | No |
| 18594866 | MOBILE EMERGENCY WATER SUPPLY AND DRAINAGE DEVICE | March 2024 | June 2025 | Allow | 15 | 0 | 0 | No | No |
| 18594750 | ROD PUMP WITH NON-LOCKING ACTUATOR | March 2024 | September 2025 | Allow | 18 | 0 | 0 | No | No |
| 18586465 | Thermoelectric Hydro Energy Harvester | February 2024 | March 2026 | Allow | 24 | 1 | 0 | Yes | No |
| 18583928 | Fuel Endothermic Reaction to Cool a Load | February 2024 | September 2025 | Allow | 19 | 1 | 0 | No | No |
| 18583247 | GEOTHERMAL SYSTEMS AND METHODS WITH AN UNDERGROUND MAGMA CHAMBER | February 2024 | September 2024 | Allow | 7 | 1 | 0 | No | No |
| 18442935 | FLARE AND GAS POWERED SYSTEM | February 2024 | February 2025 | Allow | 12 | 0 | 0 | No | No |
| 18441405 | SUB-IDLE HYBRID OPERATION MODE FOR HYBRID ELECTRIC PROPULSION SYSTEM | February 2024 | October 2024 | Allow | 8 | 1 | 0 | No | No |
| 18435629 | AIRCRAFT PROPULSION SYSTEM | February 2024 | November 2025 | Allow | 21 | 2 | 0 | No | No |
| 18682037 | Rotary-Wing Vehicle, and Rotary-Wing Turbine | February 2024 | March 2025 | Allow | 13 | 1 | 0 | No | No |
| 18682064 | THERMAL PROCESSES AND SYSTEMS FOR GENERATING ELECTRICITY UTILIZING PREDETERMINED WORKING FLUIDS | February 2024 | February 2025 | Allow | 12 | 1 | 0 | No | No |
| 18435787 | THERMAL PROCESSES AND SYSTEMS FOR GENERATING ELECTRICITY UTILIZING PREDETERMINED WORKING FLUIDS | February 2024 | March 2025 | Allow | 13 | 1 | 0 | No | No |
| 18435191 | PREFORM FOR MAKING A CASING STRUCTURE FOR TURBINE ENGINES | February 2024 | September 2024 | Allow | 8 | 1 | 0 | No | No |
| 18433239 | PYROTECHNIC LATCH RETRACTION MECHANISM | February 2024 | May 2024 | Allow | 4 | 0 | 0 | No | No |
| 18294910 | SYSTEMS AND PROCESSES FOR GENERATING ELECTRICITY FROM A GEOTHERMAL ENERGY SOURCE VIA AN INTEGRATED THERMAL POWER PLANT | February 2024 | February 2025 | Allow | 12 | 1 | 0 | No | No |
| 18293411 | ROTARY ENGINE | January 2024 | October 2025 | Abandon | 20 | 1 | 0 | No | No |
| 18427190 | Aircraft Propulsion System Air Mover Brake | January 2024 | September 2024 | Allow | 7 | 1 | 0 | No | No |
| 18293721 | Insulated Welded Joint for Pipe-in-Pipe systems | January 2024 | January 2026 | Allow | 23 | 1 | 0 | No | No |
This analysis examines appeal outcomes and the strategic value of filing appeals for examiner NGUYEN, HOANG M.
With a 50.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.
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, 55.2% 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.
✓ Appeals to PTAB show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.
✓ Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.
Examiner NGUYEN, HOANG M works in Art Unit 3746 and has examined 1,095 patent applications in our dataset. With an allowance rate of 94.2%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 20 months.
Examiner NGUYEN, HOANG M's allowance rate of 94.2% places them in the 82% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.
On average, applications examined by NGUYEN, HOANG M receive 1.10 office actions before reaching final disposition. This places the examiner in the 12% percentile for office actions issued. This examiner issues significantly fewer office actions than most examiners.
The median time to disposition (half-life) for applications examined by NGUYEN, HOANG M is 20 months. This places the examiner in the 94% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.
Conducting an examiner interview provides a -1.2% benefit to allowance rate for applications examined by NGUYEN, HOANG M. This interview benefit is in the 10% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.
When applicants file an RCE with this examiner, 36.5% of applications are subsequently allowed. This success rate is in the 83% 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 63.3% of cases where such amendments are filed. This entry rate is in the 88% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.
When applicants request a pre-appeal conference (PAC) with this examiner, 120.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 83% 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 75.0% of appeals filed. This is in the 66% percentile among all examiners. Of these withdrawals, 50.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.
When applicants file petitions regarding this examiner's actions, 45.0% are granted (fully or in part). This grant rate is in the 39% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.
Examiner's Amendments: This examiner makes examiner's amendments in 4.3% of allowed cases (in the 84% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.
Quayle Actions: This examiner issues Ex Parte Quayle actions in 5.0% of allowed cases (in the 80% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.
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.