USPTO Examiner BUI DUNG H - Art Unit 1773

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18954882FLAT PUSH HOT CAR FOR FOUNDRY COKE AND ASSOCIATED SYSTEMS AND METHODSNovember 2024May 2025Allow500YesNo
18788132AIR FILTERJuly 2024October 2024Allow200YesNo
18728831METHOD FOR ASSEMBLING A BIPOLAR MEMBRANE, BIPOLAR MEMBRANE, AND USE OF SAID BIPOLAR MEMBRANEJuly 2024March 2025Allow810NoNo
18767495SURFACE CLEANING APPARATUSJuly 2024March 2025Allow800YesNo
18734716ROBOTIC VACUUM CLEANER WITH DIRT ENCLOSING MEMBER AND METHOD OF USING THE SAMEJune 2024January 2025Allow800YesNo
18667610SURFACE CLEANING APPARATUSMay 2024December 2024Allow700YesNo
18663457AIR CLEANER BYPASS ASSEMBLY AND METHOD OF OPERATINGMay 2024March 2025Allow1010YesNo
18659199Debris Management System for Both Positive and Negative Pressure Dust CollectorsMay 2024October 2024Allow520YesNo
18640881SURFACE CLEANING APPARATUSApril 2024November 2024Allow700YesNo
18597193SURFACE CLEANING APPARATUS WITH AN EXTERNAL DIRT CHAMBERMarch 2024November 2024Allow800YesNo
18581890CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEFebruary 2024January 2025Allow1101YesNo
18500515HIGH-PRESSURE ANNULAR WATER COLLECTOR WITH AXIAL SWIRL VANES FOR AN AIR CYCLE ENVIRONMENTAL CONTROL SYSTEMNovember 2023June 2024Allow700YesNo
18379378AIR TREATMENT APPARATUSOctober 2023May 2024Allow700YesNo
18485807GAS-LIQUID SEPARATOR ASSEMBLYOctober 2023March 2024Allow510YesNo
18370235MULTIUSE HOME STATIONSeptember 2023May 2024Allow800YesNo
18462884AIRFIELD SYSTEMS, DEVICES, AND METHODSSeptember 2023June 2025Allow2111YesNo
18242357SURFACE CLEANING APPARATUS, CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMESeptember 2023April 2024Allow700YesNo
18448963PARTICLE REMOVER AND METHODAugust 2023October 2024Allow1410NoNo
18226029AIR TREATMENT APPARATUSJuly 2023February 2024Allow700YesNo
18225641SURFACE CLEANING APPARATUSJuly 2023February 2024Allow700YesNo
18220167SURFACE CLEANING APPARATUSJuly 2023January 2024Allow600YesNo
18217300DEBRIS-COLLECTING APPARATUS AND METHOD OF COLLECTING DEBRISJune 2023December 2024Abandon1710NoNo
18213644Mobile Purification Device Having Heated Filter for Killing Biological Species, Including COVID-19June 2023January 2025Allow1920NoNo
18315234SURFACE CLEANING APPARATUS WITH AN EXTERNAL DIRT CHAMBERMay 2023December 2023Allow700YesNo
18302501LOW-GRAVITY WATER CAPTURE DEVICE WITH WATER STABILIZATIONApril 2023June 2024Allow1410NoNo
18302404AIR TREATMENT APPARATUSApril 2023August 2024Abandon1610YesNo
18298644TEMPERATURE CONTROLLED EXHAUST STREAM WATER FILTER FOR COFFEE ROASTERSApril 2023May 2025Allow2500YesNo
18133495SYSTEMS AND METHODS FOR SEPARATING A MIXTURE OF COMPRESSED-GAS SOLVENTSApril 2023July 2024Allow1511YesNo
18298853Filter for a Plasma PlumeApril 2023March 2025Allow2320YesNo
18298951SURFACE CLEANING APPARATUSApril 2023November 2023Allow700YesNo
18192358MEASUREMENT OF IRON IN GLYCOL AND AMINE IN NATURAL GAS PROCESSINGMarch 2023May 2025Allow2600YesNo
18125000CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEMarch 2023November 2023Allow800YesNo
18188130Uniflow Cyclone Separator with Stable Vortex and Tangential Heavy Phase ExtractionMarch 2023June 2023Allow300YesNo
18117086ROBOTIC VACUUM CLEANER WITH DIRT ENCLOSING MEMBER AND METHOD OF USING THE SAMEMarch 2023March 2024Allow1200YesNo
18113309SURFACE CLEANING APPARATUS, CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEFebruary 2023June 2023Allow400YesNo
18080710Gas DeflectorDecember 2022April 2025Allow2800NoNo
18063128Gas-Liquid Separator for a Chromatography SystemDecember 2022April 2024Allow1601YesNo
17990986INERTIAL SEPARATOR AND METHOD OF USENovember 2022January 2025Allow2600YesNo
17990969INERTIAL SEPARATOR AND METHOD OF USENovember 2022January 2025Allow2601YesNo
17971743SURFACE CLEANING APPARATUS, CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEOctober 2022February 2023Allow400YesNo
17966809METHODS AND APPARATUS FOR AN INERTIAL SEPARATION OF AIR IN AN ELECTRIC AIRCRAFTOctober 2022February 2024Allow1621YesNo
18045986FLUID CHAMBER SYSTEMOctober 2022May 2024Abandon1920YesNo
17963742RESERVE TANKOctober 2022April 2025Allow3010YesNo
17963375VACUUM EXCAVATION APPARATUS HAVING A DECELERATION VESSEL AND METHODS FOR EXCAVATING A SITEOctober 2022February 2025Allow2821YesNo
18045721CYCLONE SEPARATOR PARTICULARLY FOR A POWDER RECOVERY DEVICE OF A POWDER COATING SYSTEMOctober 2022August 2024Allow2220NoNo
17955283CENTRIFUGAL SEPARATION-TYPE OIL SEPARATORSeptember 2022July 2023Allow911NoNo
17902841CYCLONE SEPARATOR ARRANGEMENTSeptember 2022February 2024Allow1720YesNo
17898658INDUCTION POWERED VORTEX FLUID SEPARATORAugust 2022October 2023Allow1301YesNo
17816863TWO-PHASE SEPARATOR DEVICE FOR REMOVING CONDENSATE OR PARTICULATE FROM A GAS STREAMAugust 2022May 2023Allow910NoNo
17868581HIGH-STABILITY SHALE GAS DESANDING DEVICE WITH GRAVEL STORAGE MECHANISMJuly 2022May 2023Allow1000YesNo
17791894VORTEX FINDER FOR A CYCLONIC SEPARATORJuly 2022July 2024Allow2450YesNo
17857756FILTER CLEANINGJuly 2022June 2023Allow1110NoNo
17848364APPARATUS AND METHOD FOR DRY CLEANING OF POLLUTED FLUE GASESJune 2022June 2024Allow2431NoNo
17787802RETAINING PLATE FOR A VACUUM-CLEANER FILTER BAGJune 2022May 2025Abandon3510YesNo
17843905RefrigeratorJune 2022June 2025Allow3620YesNo
17786155GAS SEPARATION MEMBRANE, GAS SEPARATION MEMBRANE ELEMENT AND GAS PRODUCTION METHODJune 2022April 2025Abandon3401NoNo
17839912BLOWDOWN VALVE WITH AIR-OIL SEPARATIONJune 2022February 2025Allow3200YesNo
17836462SERVER DUST SENSOR AND FILTER MECHANISMJune 2022May 2025Allow3511YesNo
17832517APPARATUS FOR TRAPPING OF REACTION BY-PRODUCT WITH EXTENDED AVAILABLE COLLECTION AREAJune 2022October 2023Allow1610NoNo
17832268APPARATUS FOR TRAPPING OF REACTION BY-PRODUCT CAPABLE OF EXPANDING THE AREA FOR COLLECTION BY INDUCING GAS FLOWJune 2022November 2023Allow1710NoNo
17830663AIR CONDITIONING APPLIANCE AND MAKE-UP AIR FILTER TRAYJune 2022May 2025Allow3510YesNo
17828822RESOURCE RECOVERY SYSTEM FOR REDUCING CARBON DIOXIDE EMISSIONMay 2022August 2024Allow2600NoNo
17779594A DUST COLLECTION DEVICE AND METHOD FOR FILTERING POWDERMay 2022January 2025Allow3210YesNo
17752286COALESCING FILTER MEDIAMay 2022March 2025Abandon3410YesNo
17752092VENT SEAL ASSEMBLYMay 2022May 2025Allow3601YesNo
17743088AIR-CONDITIONING SYSTEMMay 2022January 2025Allow3301YesNo
17737957SCRUBBER APPARATUS FOR GEOTHERMAL POWER GENERATIONMay 2022March 2024Allow2221YesNo
17733477MID-PRESSURE WATER COLLECTOR (MPWC) WITH HELICAL FLOW CHANNEL AND RADIAL SCUPPERSApril 2022March 2024Allow2221NoNo
17724048FILTER HOUSING, SEAL ARRANGEMENT, AND METHOD OF SEALING A FILTER HOUSINGApril 2022January 2025Allow3310NoNo
17723655AIR / WASTE WATER SEPARATORApril 2022June 2024Allow2640YesNo
17769976SEPARATING DEVICE AND SEPARATING SYSTEMApril 2022December 2024Allow3210YesNo
17659486DUST COLLECTION DEVICE AND PLASMA EQUIPMENTApril 2022May 2024Abandon2520NoNo
17719832SURFACE CLEANING APPARATUSApril 2022January 2023Allow1000YesNo
17719265AIR TREATMENT APPARATUSApril 2022January 2023Allow900YesNo
17719253CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEApril 2022January 2023Allow900YesNo
17636605MIST ELIMINATOR PROFILE AND ASSOCIATED METHOD OF PRODUCTIONApril 2022February 2025Allow3631YesNo
17765745METHOD AND APPARATUS FOR REMOVING IMPURITIES FROM GASIFICATION GAS AND USEMarch 2022March 2025Allow3520NoNo
17701929SYSTEMS AND METHODS FOR REMOVING CONTAMINANTS FROM SURFACES OF SOLID MATERIALMarch 2022June 2023Allow1501NoNo
17699441AIR TREATMENT APPARATUSMarch 2022December 2022Allow900YesNo
17697535ADAPTER FRAME, ASSEMBLY, AND SUCTION UNITMarch 2022August 2023Allow1710YesNo
17697496CYCLONE PRE-SEPARATOR AND ARRANGEMENTMarch 2022March 2024Allow2430YesNo
17694927CYCLONIC AIR TREATMENT MEMBER AND SURFACE CLEANING APPARATUS INCLUDING THE SAMEMarch 2022November 2022Allow800YesNo
17694362SURFACE CLEANING APPARATUSMarch 2022April 2023Allow1300YesNo
17642349COLLAPSIBLE FILTER FRAMEMarch 2022March 2025Abandon3710YesNo
17690267Dust Collector and Self-Cleaning Method for Filter ThereofMarch 2022July 2023Abandon1610YesNo
17691113SCENT PRESENTATION SYSTEM AND METHOD OF USEMarch 2022August 2023Allow1710YesNo
17686646BASE STATION AND CLEANING EQUIPMENTMarch 2022August 2024Allow3001YesNo
17684068Apparatus and Method to Separate and Condition Multiphase FlowMarch 2022August 2023Allow1710NoNo
17652768ULTRAVIOLET RADIATION AIR SANITIZING MACHINEFebruary 2022August 2024Allow2940NoYes
17637979CYCLONE WITH ROTATING ROD BASKETFebruary 2022May 2024Allow2720NoNo
17670283FLOW AND PRESSURE CONTROL IN CYCLONIC FILTER ARRAYSFebruary 2022July 2024Abandon2920NoYes
17577526STERILIZATION DEVICE, AIR FILTER, AND FILTRATION SYSTEMJanuary 2022August 2024Allow3100YesNo
17577177GAS COOLING-SCRUBBING APPARATUS AND METHODJanuary 2022August 2023Allow1911YesNo
17567026CYCLONIC SEPARATING DEVICE AND SURFACE CLEANING DEVICEDecember 2021April 2023Allow1600YesNo
17566619SEPARATION STRUCTURE FOR DUST CUP OF VACUUM CLEANERDecember 2021September 2024Abandon3230YesNo
17559463MULTISTAGE SWIRLER FOR ENVIRONMENTAL CONTROL SYSTEMDecember 2021May 2024Abandon2921NoNo
17553961SURFACE CLEANING APPARATUSDecember 2021October 2022Allow1000YesNo
17549138SURFACE CLEANING APPARATUS WITH AN EXTERNAL DIRT CHAMBERDecember 2021February 2023Allow1400YesNo
17549139CONDENSATION DEVICE FOR COMPRESSED AIRDecember 2021July 2024Abandon3121NoNo
17547929DUST COLLECTORDecember 2021December 2024Allow3610YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner BUI, DUNG H.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
3
Examiner Affirmed
1
(33.3%)
Examiner Reversed
2
(66.7%)
Reversal Percentile
85.7%
Higher than average

What This Means

With a 66.7% reversal rate, the PTAB has reversed the examiner's rejections more often than affirming them. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
33
Allowed After Appeal Filing
17
(51.5%)
Not Allowed After Appeal Filing
16
(48.5%)
Filing Benefit Percentile
83.0%
Higher 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, 51.5% 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.

Strategic Recommendations

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 BUI, DUNG H - Prosecution Strategy Guide

Executive Summary

Examiner BUI, DUNG H works in Art Unit 1773 and has examined 930 patent applications in our dataset. With an allowance rate of 81.5%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 28 months.

Allowance Patterns

Examiner BUI, DUNG H's allowance rate of 81.5% places them in the 46% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by BUI, DUNG H receive 1.51 office actions before reaching final disposition. This places the examiner in the 37% 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 BUI, DUNG H is 28 months. This places the examiner in the 50% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +27.1% benefit to allowance rate for applications examined by BUI, DUNG H. This interview benefit is in the 78% 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, 30.5% of applications are subsequently allowed. This success rate is in the 52% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 42.0% of cases where such amendments are filed. This entry rate is in the 57% 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.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 140.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 87% 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.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 90.3% of appeals filed. This is in the 81% percentile among all examiners. Of these withdrawals, 46.4% 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.

Petition Practice

When applicants file petitions regarding this examiner's actions, 46.3% are granted (fully or in part). This grant rate is in the 53% 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 Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.2% of allowed cases (in the 51% 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 0.0% of allowed cases (in the 6% 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:

  • 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.
  • Request pre-appeal conferences: PACs are highly effective with this examiner. Before filing a full appeal brief, request a PAC to potentially resolve issues without full PTAB review.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.

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.