USPTO Examiner PULLEN NIKOLAS TAKUYA - Art Unit 1733

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19235398ORE RESETTING PROCESS FOR COPPER LEACHINGJune 2025January 2026Allow721NoNo
19205668SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON ORE PLACEMENTMay 2025September 2025Allow520YesNo
19194435JOINT REGULATION METHOD OF MATERIAL FLOW, ENERGY FLOW, AND CARBON EMISSION FLOW IN LONG-PROCESS IRON AND STEEL ENTERPRISESApril 2025January 2026Allow820NoNo
18870462SYSTEM FOR PREPARING NEW ENERGY NI-CO-MN RAW MATERIAL FROM LATERITE NICKEL ORENovember 2024November 2025Allow1120NoNo
18870459TREATMENT SYSTEM FOR REMOVING IRON-ALUMINUM-CHROMIUM REACTION PRODUCTS IN LEACHING SOLUTION OF LATERITE NICKEL ORENovember 2024November 2025Allow1220NoNo
18870463SYSTEM AND METHOD FOR REGULATING ALUMINUM PRECIPITATION DURING HIGH-PRESSURE ACID LEACHING OF LATERITE NICKEL ORENovember 2024January 2026Allow1440NoNo
18757564DEVICE AND METHOD OF REGULATING MELTING SPEED OF ALUMINUM ALLOY SMELTING FURNACE BURNERJune 2024March 2026Allow2041NoNo
18610218DIRECT REDUCED IRON SYSTEM AND METHOD USING SYNTHETIC COMBUSTION AIRMarch 2024January 2026Abandon2220NoNo
18602358METHOD FOR RECYCLING LITHIUM BATTERIESMarch 2024October 2025Abandon2011NoNo
18421194METHOD, APPARATUS AND SYSTEM FOR PROCESSING A COMPOSITE WASTE SOURCEJanuary 2024January 2026Allow2420NoNo
18409798APPARATUS AND METHOD FOR PREPARING HIGH-PURITY SPHERICAL MAGNESIUM AND/OR HIGH-PURITY MAGNESIUM POWDERJanuary 2024June 2025Abandon1721YesNo
18398613SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON ORE PLACEMENTDecember 2023April 2025Allow1530YesNo
18513670MULTI-SOURCE SOLID WASTE RECYCLING METHOD BASED ON COMPOSITION DESIGN FOR CALCIUM-SILICON-ALUMINUM-MAGNESIUM OXIDENovember 2023December 2025Abandon2540NoNo
18507242METHOD FOR PREFERENTIALLY RECOVERING MANGANESE FROM WASTE LITHIUM-RICH MANGANESE-BASED CATHODE MATERIALNovember 2023September 2024Allow1010NoNo
18492577UNBLOCKING APPARATUS FOR FURNACE DISCHARGING PIPE AND USE METHODOctober 2023April 2024Allow610NoNo
18213376METHOD AND SYSTEM FOR HEATING DIRECT REDUCED IRON (DRI) BETWEEN A DRI SOURCE AND PROCESSING EQUIPMENT FOR THE DRIJune 2023July 2025Allow2520YesNo
18208808PROCESSES FOR THE SEPARATION OF RARE EARTH ELEMENTS AND NON-RARE EARTH ELEMENTS INTO INDIVIDUAL HIGH PURITY ELEMENTSJune 2023August 2025Abandon2611NoNo
18112676PROCESSES AND SYSTEMS FOR PURIFYING AND RECYCLING LITHIUM-ION BATTERY WASTE STREAMSFebruary 2023January 2025Allow2320YesNo
18042207METHOD FOR PRODUCING BATTERY-GRADE NICKEL SULFATE BY USING LATERITE NICKEL OREFebruary 2023January 2024Allow1110NoNo
18014187METHOD FOR RECOVERING VALUABLE METALJanuary 2023September 2023Allow810NoNo
18061998Method and Equipment for Comprehensive Utilization of NiobiteDecember 2022April 2025Allow2841NoNo
18060378METHOD FOR EXTRACTING RARE EARTH ELEMENTS FROM RARE EARTH ELEMENT HYPERACCUMULATORNovember 2022September 2023Allow910NoNo
17938104IRONMAKING FEEDSTOCKOctober 2022August 2023Allow1110NoNo
17943416METAL RECYCLING SYSTEM FOR IN-SPACE MANUFACTURINGSeptember 2022April 2025Allow3131YesNo
17930678OBTAINING VALUABLE SOLIDS AND COMBUSTIBLE GAS FROM ALUMINUM REMELTING WASTESeptember 2022August 2024Abandon2320YesNo
17908942METHOD FOR SELECTIVE SEPARATION OF THORIUM AND CERIUM FROM A SOLID CONCENTRATE COMPRISING SAME AND ONE OR MORE FURTHER RARE EARTH METALS AND ACIDIC RARE EARTH SOLUTION THEREOFSeptember 2022December 2025Allow3911YesNo
17797826MULTI-DIMENSIONAL LIGAND-ASSISTED CHROMATOGRAPHY METHOD FOR THE PURIFICATION OF RARE EARTH ELEMENTS AND OTHER METAL IONS FROM WASTE MAGNETSAugust 2022November 2025Allow3910NoNo
17862598MAGNESIUM REMOVAL AGENT AND PRODUCTION METHOD FOR ALUMINUM ALLOYJuly 2022December 2025Abandon4240YesNo
17861201METHOD OF COLLECTING RARE EARTH ELEMENTSJuly 2022March 2025Abandon3210NoNo
17843013SYSTEM AND METHOD FOR THE PRODUCTION OF HOT BRIQUETTED IRON (HBI) CONTAINING FLUX AND/OR CARBONACEOUS MATERIAL AT A DIRECT REDUCTION PLANTJune 2022February 2024Allow2021NoNo
17804337HYDROMETALLURGICAL PROCESS FOR LITHIUM-ION BATTERY WASTE RECYCLINGMay 2022January 2026Abandon4441NoNo
17749443DIRECT REDUCED IRON SYSTEM AND METHOD USING SYNTHETIC COMBUSTION AIRMay 2022December 2024Abandon3121NoNo
17746145ENVIRONMENTALLY FRIENDLY PROCESS TO OPTIMIZE COPPER DISSOLUTION AND RECOVER COPPER AND GOLD FROM ELECTRONIC WASTEMay 2022April 2024Abandon2320NoNo
17746141ENVIRONMENTALLY FRIENDLY PROCESS TO OPTIMIZE COPPER DISSOLUTION AND RECOVER COPPER AND GOLD FROM ELECTRONIC WASTEMay 2022April 2024Abandon2320NoNo
17746126ENVIRONMENTALLY FRIENDLY PROCESS TO OPTIMIZE COPPER DISSOLUTION AND RECOVER COPPER AND GOLD FROM ELECTRONIC WASTEMay 2022April 2024Abandon2320NoNo
17720822METAL PURIFYING METHOD AND METAL PURIFYING APPARATUSApril 2022March 2025Abandon3540YesNo
17716365SYSTEM AND METHOD FOR BENEFICIATING AND COLLECTING LITHIUM USING A FLUIDIZED BED REACTORApril 2022September 2024Abandon2921YesNo
17655009WASTE MERCURY RECOVERY DEVICEMarch 2022January 2025Abandon3430NoNo
17690645Process for acquiring lithium from brine and for recovering lithium when recycling lithium ion accumulatorsMarch 2022October 2024Abandon3130NoNo
17635095SLIDING NOZZLE APPARATUSFebruary 2022March 2026Allow4960YesNo
17617947Coaxial Dual Supersonic Speed Oxygen Flow Coherent Oxygen LanceDecember 2021April 2024Allow2820NoNo
17539381SYSTEM AND METHOD FOR REDUCING ORE USING HYDROGEN AS A REDUCING AGENTDecember 2021March 2024Allow2811NoNo
17539718ATOMIZATION POWDER MAKING DEVICEDecember 2021May 2025Abandon4201NoNo
17531710SEALED COBALT LEACHING DEVICE, REAGENT FOR COBALT LEACHING, METHOD USING DEVICE, USE OF METHODNovember 2021April 2025Allow4111NoNo
17609997METHOD OF PRODUCING METAL STRANDS AND APPARATUS FOR PRODUCING METAL STRANDSNovember 2021October 2023Allow2320NoNo
17462271METHOD FOR FLASH IRONMAKING USING A DROP TUBE FURNACEAugust 2021August 2023Abandon2420NoNo
17426044PROCESS AND SYSTEM FOR RECOVERING RARE EARTH ELEMENTSJuly 2021March 2025Allow4420NoNo
17423255Method for Extracting Gold and/or Silver and/or at Least One Platinum MetalJuly 2021November 2024Abandon4001NoNo
17414180POND REACTOR FOR RECOVERY OF METALSJune 2021September 2024Abandon3910NoNo
17311541RECOVERY OF GOLD AND SILVER VALUES FROM FEEDSTOCKS USING ULTRASOUND-ASSISTED EXTRACTIONJune 2021April 2025Abandon4720NoNo
17309280BATTERY RECYCLING BY HYDROGEN GAS INJECTION IN LEACHMay 2021March 2026Abandon5840NoNo
17293053CARBURIZER AND CARBURIZATION METHOD USING THE SAMEMay 2021February 2026Abandon5751YesNo
17313865BATTERY RECYCLINGMay 2021May 2024Allow3721NoNo
17237277SEPARATION METHOD OF BLACK POWDER OF AUTOMOTIVE WASTE SECONDARY BATTERYApril 2021August 2023Abandon2810NoNo
17279932Process For Purifying And Concentrating Rare Earths From PhosphogypsumMarch 2021July 2024Allow3910NoNo
17211730Method for Extracting Rare Earth MetalsMarch 2021August 2023Abandon2910NoNo
17209561METHOD AND SYSTEM FOR HEATING DIRECT REDUCED IRON (DRI) BETWEEN A DRI SOURCE AND PROCESSING EQUIPMENT FOR THE DRIMarch 2021January 2024Allow3420NoNo
17207632RECOVERY OF PRECIOUS METALS FROM COPPER ANODE SLIMEMarch 2021July 2023Allow2820NoNo
17199573NICKEL MAGNESIUM WIRE INJECTION SYSTEM AND METHOD THEREOFMarch 2021December 2025Abandon5741YesNo
17184480Co-Processing of Copper Sulphide Concentrate with Nickel Laterite OreFebruary 2021February 2025Allow4830YesNo
17162044PROCESS FOR DRY BENEFICIATION OF BAUXITE MINERALS BY ELECTROSTATIC SEGREGATIONJanuary 2021August 2024Abandon4230YesNo
17258772METHOD FOR RECOVERING VALUABLE METALS FROM WASTE LITHIUM ION BATTERIESJanuary 2021March 2024Allow3810NoNo
17136701SELECTIVE EXTRACTION OF LITHIUM FROM CLAY MINERALSDecember 2020May 2025Allow5241NoNo
17118386PROCESSES FOR THE SEPARATION OF RARE EARTH ELEMENTS AND NON-RARE EARTH ELEMENTS INTO INDIVIDUAL HIGH PURITY ELEMENTSDecember 2020December 2024Allow4840YesNo
17108129Process for Gold and/or Platinum Group Metals Heap Leaching with LimeDecember 2020July 2024Abandon4330NoNo
17065487METHODS AND COMPOSITIONS FOR EXTRACTION OF RARE EARTH ELEMENTS FROM COAL ASHOctober 2020April 2024Allow4220NoNo
17063986Oxygen Injection For Reformer Feed Gas For Direct Reduction ProcessOctober 2020November 2023Allow3720NoNo
17041766GRANULATED MATERIAL, METHOD FOR PRODUCING GRANULATED MATERIAL, AND METHOD FOR PRODUCING SINTERED ORESeptember 2020March 2026Abandon6041YesNo
16976774METHOD AND EQUIPMENT FOR RECYCLING USED CELLS AND RECHARGEABLE BATTERIESAugust 2020November 2024Abandon5011NoNo
16975705METHOD FOR CLEAN METALLURGY OF MOLYBDENUMAugust 2020January 2024Allow4010NoNo
16947567METHOD FOR REFINING METAL MELTS OR SLAGSAugust 2020November 2024Abandon5120NoNo
16966114METHOD FOR RECYCLING LITHIUM BATTERIESJuly 2020January 2024Allow4220NoNo
16925752MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION METHOD, HOLDING FURNACE, AND MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION EQUIPMENT USING HOLDING FURNACEJuly 2020May 2024Abandon4620NoNo
16876406Mineralizer Composition and Pidgeon Silicothermic Process for Smelting MagnesiumMay 2020January 2023Abandon3201NoNo
16858916IRONMAKING FEEDSTOCKApril 2020January 2023Abandon3310NoNo
16755358METHOD FOR PURIFYING TITANIUM MATERIALApril 2020March 2023Abandon3620YesNo
16651106PROCESS FOR ACIDIC LEACHING OF PRECIOUS AND CHALCOPHILE METALSMarch 2020October 2024Allow5530YesNo
16644759MOLTEN SALT COMPOSITION FOR SMELTING MAGNESIUM USING SOLID OXIDE MEMBRANE (SOM) PROCESSMarch 2020August 2023Abandon4220NoNo
16640814METHOD FOR RECOVERING Cu AND METHOD OF PREPARING ELECTROLYTIC COPPERFebruary 2020November 2023Allow4540YesNo
16640649PROCESSING METHODFebruary 2020August 2024Allow5440NoNo
16638530METHOD FOR OPERATING MELTING/REFINING FURNACE AND MELTING-REFINING FURNACEFebruary 2020April 2023Abandon3921NoNo
16635932SODIUM REMOVAL METHOD, METAL CONCENTRATING METHOD, AND METAL RECOVERY METHODJanuary 2020November 2024Abandon5820NoNo
16773625ION EXCHANGE SYSTEM FOR LITHIUM EXTRACTIONJanuary 2020February 2025Allow6030NoNo
16773081APPARATUS AND METHOD FOR POWER GENERATION AND VALUABLE ELEMENT RECOVERY FROM COMBUSTION BY-PRODUCTSJanuary 2020August 2023Abandon4221NoNo
16751889PROCESSING METHODS AND PROCESSING APPARATUSJanuary 2020April 2025Allow6061YesNo
16633140RECOVERY OF METALS FROM PYRITEJanuary 2020November 2025Abandon6060NoNo
16743577High Entropy Alloy Having Composite Microstructure and Method of Manufacturing the SameJanuary 2020May 2023Abandon4020NoNo
16620184METHOD FOR THE RECOVERY OF LITHIUMDecember 2019October 2022Abandon3410NoNo
16675001SYSTEMS AND METHODS FOR RECOVERING SCRAP SILVERNovember 2019February 2025Abandon6030NoYes
16665486FOAMY SLAG CONDITIONER COMPOUNDOctober 2019March 2024Abandon5350YesNo
16664145DEVICE FOR CONTINUOUSLY DECOMPOSING RARE EARTH CONCENTRATE OREOctober 2019November 2022Allow3720NoNo
16656089Microwave Gun and Arc Plasma Torch FurnaceOctober 2019March 2023Abandon4110NoNo
16591644AN APPARATUS FOR PLATINUM GROUP METALS RECOVERY FROM SPENT CATALYSTSOctober 2019September 2023Allow4840NoNo
16499374HYDROMETALLURGICAL METHOD FOR RECYCLING LEAD FROM SPENT LEAD-ACID BATTERY PASTESeptember 2019August 2022Allow3410YesNo
16576765METHOD FOR PREPARING LEAD DIRECTLY FROM LEAD-CONTAINING MATERIAL BY SOLID PHASE REACTIONSeptember 2019September 2022Allow3610YesNo
16488925METAL RECOVERY AGENT, METAL COMPOUND RECOVERY AGENT, AND METHOD FOR RECOVERING METAL OR METAL COMPOUNDAugust 2019May 2024Abandon5631YesNo
16488240Control System and Method for Dry Centrifugal Granulation of Liquid SlagAugust 2019June 2022Allow3300NoNo
16537753METHOD OF SEPARATING METAL FROM METALLIC STARTING MATERIALS USING A HYDROTHERMAL REACTOR SYSTEMAugust 2019October 2024Abandon6040NoNo
16533455METHOD FOR THE DISCRIMINATION BETWEEN MARINE AND TERRESTRIAL SEDIMENTARY ENVIRONMENTS BY SELECTIVELY EXTRACTED EXCHANGEABLE STRONTIUM TO BARIUM RATIO FROM TERRIGENOUS CLASTIC SEDIMENTSAugust 2019July 2023Abandon4820NoNo
16476092METHOD OF DETECTION AND EXTRACTING METALS FROM ORE-BEARING SLURRYJuly 2019August 2022Abandon3810NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner PULLEN, NIKOLAS TAKUYA.

Strategic Value of Filing an Appeal

Total Appeal Filings
2
Allowed After Appeal Filing
0
(0.0%)
Not Allowed After Appeal Filing
2
(100.0%)
Filing Benefit Percentile
1.7%
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, 0.0% 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

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

Examiner PULLEN, NIKOLAS TAKUYA - Prosecution Strategy Guide

Executive Summary

Examiner PULLEN, NIKOLAS TAKUYA works in Art Unit 1733 and has examined 76 patent applications in our dataset. With an allowance rate of 47.4%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 43 months.

Allowance Patterns

Examiner PULLEN, NIKOLAS TAKUYA's allowance rate of 47.4% places them in the 10% percentile among all USPTO examiners. This examiner is less likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by PULLEN, NIKOLAS TAKUYA receive 2.45 office actions before reaching final disposition. This places the examiner in the 71% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by PULLEN, NIKOLAS TAKUYA is 43 months. This places the examiner in the 16% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.

Interview Effectiveness

Conducting an examiner interview provides a +13.5% benefit to allowance rate for applications examined by PULLEN, NIKOLAS TAKUYA. This interview benefit is in the 51% 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, 15.9% of applications are subsequently allowed. This success rate is in the 12% percentile among all examiners. Strategic Insight: RCEs show lower effectiveness with this examiner compared to others. Consider whether a continuation application might be more strategic, especially if you need to add new matter or significantly broaden claims.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 31.0% of cases where such amendments are filed. This entry rate is in the 45% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.

Petition Practice

When applicants file petitions regarding this examiner's actions, 109.1% are granted (fully or in part). This grant rate is in the 94% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 5% percentile). This examiner rarely makes examiner's amendments compared to other examiners. You should expect to make all necessary claim amendments yourself through formal amendment practice.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 5% percentile). This examiner rarely issues Quayle actions compared to other examiners. Allowances typically come directly without a separate action for formal matters.

Prosecution Strategy Recommendations

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

  • Prepare for rigorous examination: With a below-average allowance rate, ensure your application has strong written description and enablement support. Consider filing a continuation if you need to add new matter.
  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.

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.