USPTO Examiner ELLINGTON MARRIAH C G - Art Unit 1773

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18941364Constructed Wetland Structure and Methods for Preparing and Using Carbon SourceNovember 2024November 2025Allow1321YesNo
17907075FILTER FOR A TREATMENT APPARATUSSeptember 2022December 2025Allow3911YesNo
17911220PROCESS FOR THE SUPERCRITICAL OXIDATION OF SEWAGE SLUDGE AND OTHER WASTE STREAMSSeptember 2022December 2025Abandon3911NoNo
17941153RAINWATER COLLECTORSeptember 2022September 2024Abandon2420NoNo
17811730AUTOMATIC SELF-CLEANING BACKWASH STRAINERJuly 2022August 2025Allow3740YesNo
17855117ENRICHING DRINKING WATER WITH ZINCJune 2022June 2024Abandon2401NoNo
17846961WATER FILTER WITH MODULE FOR QUICKLY DIAGNOSING FAULTY COMPONENT LOCATIONJune 2022October 2024Abandon2810YesNo
17841492Water Trough CleanerJune 2022September 2024Abandon2710NoNo
17827544ELECTROCATALYTIC DEGRADATION DEVICE FOR ORGANIC WASTEWATERMay 2022March 2026Abandon4520NoNo
17779228LIQUID FILTRATION DEVICE COMPRISING AN ULTRASOUND EMISSION MODULEMay 2022November 2025Allow4220NoNo
17771583MANIFOLD FOR DIALYSIS MACHINES AND EQUIPMENT AND DIALYSIS MACHINE OR EQUIPMENT COMPRISING SAID MANIFOLDApril 2022January 2026Abandon4520NoNo
17754649MICROPLASTIC SEPARATORApril 2022January 2026Abandon4511YesNo
17641114FILTRATION MEMBRANE ASSEMBLY AND METHOD OF CLEANING THE SAMEMarch 2022December 2024Abandon3301NoNo
17670560High performance electrocoagulation systems for removing water contaminantsFebruary 2022February 2025Abandon3621NoNo
17634369GRAVITATION SOLID EXCLUSION DEVICEFebruary 2022December 2024Abandon3402NoNo
17631331Complex depressant for controlling zinc and iron in polymetallic-ore flotation, production process and application as a substitute for zinc sulfates and copper sulfatesJanuary 2022January 2025Abandon3510NoNo
17630119SEDIMENT COLLECTOR WITH SELF INSTALLATION AND SELF REMOVAL FEATUREJanuary 2022December 2024Abandon3401NoNo
17576361ENCLOSED MEDIA FLUID FILTRATION DEVICEJanuary 2022February 2025Allow3720NoNo
17625121DIALYSIS MACHINE AND METHOD OF OPERATING A BALANCING CHAMBER SYSTEM OF A DIALYSIS MACHINEJanuary 2022January 2026Allow4921NoNo
17623454SEPARATOR APPARATUS AND FEED ARRANGEMENT FOR INCREASED CAPACITYDecember 2021July 2025Allow4311NoNo
17619625A PROCESS FOR REMOVAL OF PFAS FROM WATERDecember 2021November 2025Allow4730YesNo
17618851ANAEROBIC BIOGAS PLANT AND DIGESTION METHODDecember 2021October 2025Abandon4641YesNo
17617395PROCESS FOR THE CONCENTRATION OF AMINE WATERDecember 2021October 2025Allow4620NoNo
17606997METHOD FOR FLOTATION OF A SILICATE-CONTAINING IRON ORE WITH A CATIONIC COLLECTOROctober 2021December 2024Allow3711YesNo
17599612APPARATUS AND METHOD FOR PROVIDING PURIFIED WATERSeptember 2021October 2024Abandon3701NoNo
17593853ParaDice Process SystemSeptember 2021November 2025Abandon5031YesNo
17437021DIGESTION OF ORGANIC SLUDGESeptember 2021March 2025Allow4220YesNo
17417485STERILIZATION METHOD FOR WATER SYSTEM, METHOD OF REMOVING NITROSAMINE COMPOUND FROM WATER SYSTEM AND DRINKING WATER PRODUCTION METHODJune 2021September 2025Abandon5140YesNo
17342780ROLL ASSEMBLY, IN PARTICULAR FOR WATER TREATMENT, AND TREATMENT APPARATUSJune 2021May 2024Abandon3510NoNo
17298569GAS-DRIVEN DIFFUSIOPHORETIC WATER FILTRATION DEVICE WITH IMPROVED INLET, OUTLET AND MEMBRANE STRUCTURES TOOLMay 2021May 2024Abandon3610NoNo
17313029ORGANIC WASTE COLLECTION APPARATUS AND METHODMay 2021May 2024Allow3711YesNo
17264579Compositions and Methods for Controlling pH in Metal Flotation ProcessesJanuary 2021May 2024Abandon3901NoNo
16974096Sustainable processes for treating wastewaterSeptember 2020August 2024Abandon4710NoNo

Appeals Overview

No appeal data available for this record. This may indicate that no appeals have been filed or decided for applications in this dataset.

Examiner ELLINGTON, MARRIAH C G - Prosecution Strategy Guide

Executive Summary

Examiner ELLINGTON, MARRIAH C G works in Art Unit 1773 and has examined 14 patent applications in our dataset. With an allowance rate of 42.9%, 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 ELLINGTON, MARRIAH C G's allowance rate of 42.9% places them in the 8% 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 ELLINGTON, MARRIAH C G receive 1.71 office actions before reaching final disposition. This places the examiner in the 36% 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 ELLINGTON, MARRIAH C G 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 +28.6% benefit to allowance rate for applications examined by ELLINGTON, MARRIAH C G. This interview benefit is in the 76% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 25.0% of applications are subsequently allowed. This success rate is in the 38% 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.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 0.0% of cases where such amendments are filed. This entry rate is in the 0% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Petition Practice

When applicants file petitions regarding this examiner's actions, 0.0% are granted (fully or in part). This grant rate is in the 1% percentile among all examiners. Strategic Note: Petitions are rarely granted regarding this examiner's actions compared to other examiners. Ensure you have a strong procedural basis before filing a petition, as the Technology Center Director typically upholds this examiner's decisions.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 7% 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 7% 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.
  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.
  • 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.