USPTO Examiner DANG ANH TIEU - Art Unit 3771

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19210219ROTATIONAL ATHERECTOMY DEVICES AND METHODSMay 2025June 2025Allow100YesNo
19090800Controlled Tissue Dissection Systems and MethodsMarch 2025November 2025Abandon810NoNo
19053238BALLOON CATHETER AND METHODS OF USE TO REDUCE RESIDUAL STENOSISFebruary 2025March 2026Allow1330YesNo
19026053Hydro Dermabrasion Device With MicroneedlesJanuary 2025August 2025Allow720YesNo
18916404INTRAVASCULAR LITHOTRIPSYOctober 2024April 2025Allow610YesNo
18824154EAR CANAL CARE DEVICESeptember 2024March 2025Allow710NoNo
18818894TWEEZER PART FOR VISUAL EAR PICKAugust 2024July 2025Allow1020YesNo
18774078ROTATIONAL ATHERECTOMY DEVICES AND METHODSJuly 2024February 2025Allow700YesNo
18767606FLEXIBLE DRIVE MEMBER ATTACHMENT THROUGH ADDITIVE THERMAL SPRAYJuly 2024February 2026Allow1910NoNo
18749137MAGNETIC IMPLANTS HAVING THROUGH-HOLES FOR FORMING AN ANASTOMOSISJune 2024July 2025Allow1321YesNo
18737500ULTRASONIC SURGICAL INSTRUMENT AND METHOD OF LATERALLY ALIGNING BLADE WITH CLAMP ARMJune 2024February 2026Allow2010YesNo
18665665SUTURING DEVICEMay 2024October 2025Allow1700YesNo
18658372ROTATIONAL ATHERECTOMY DEVICES AND METHODSMay 2024November 2024Allow610YesNo
18606486HYGIENIC DUAL-ENDED EAR-CLEANING SWAB WITH CONTINUOUS AIRFLOW PASSAGE AND SANITARY WRAPPINGMarch 2024July 2025Allow1621YesNo
18596388SHOCK WAVE CATHETER WITH RETRACTABLE ENCLOSUREMarch 2024July 2025Allow1710YesNo
18588809INTRAVASCULAR LITHOTRIPSY SYSTEMS, DEVICES AND METHODSFebruary 2024July 2025Allow1710YesNo
18586857STEERABLE GUIDE WITH PARTIAL SLEEVEFebruary 2024September 2025Abandon1910NoNo
18586828ARTICULATION MECHANISMS AND METHODS OF USEFebruary 2024January 2025Allow1110NoNo
18443267INTRAVASCULAR LITHOTRIPSYFebruary 2024September 2024Allow710NoNo
18426851SINGLE OPERATOR DEVICE FOR DELIVERING AN OCULAR IMPLANTJanuary 2024May 2025Allow1601NoNo
18530564GRASPING STRUCTURE FOR MEMBRANE REMOVALDecember 2023December 2025Allow2410YesNo
18522914ENDOSCOPIC STRIP DELIVERY DEVICENovember 2023June 2025Allow1900YesNo
18523683ROTATIONAL ATHERECTOMY DEVICES AND METHODSNovember 2023April 2024Allow501YesNo
18482762BIFURCATED ENDOVASCULAR PROSTHESIS HAVING TETHERED CONTRALATERAL LEGOctober 2023February 2025Allow1701NoNo
18480486INVERTING SLEEVE APPARATUSES AND METHOD FOR DRYING AND CLEANING THE EAR OR NOSEOctober 2023April 2024Allow710YesNo
18370819INTRAGASTRIC DEVICESeptember 2023March 2024Allow610YesNo
18367811INTRAVASCULAR LITHOTRIPSYSeptember 2023January 2024Allow410YesNo
18241151INTRAGASTRIC DEVICEAugust 2023April 2025Allow1910YesNo
18238587APPARATUS FOR REMOVING A HOOK WITH A BARBAugust 2023April 2025Abandon2010NoNo
18454469AUTOMATED IMAGE-GUIDED TISSUE RESECTION AND TREATMENTAugust 2023March 2025Allow1810YesNo
18365477MULTI-PHASIC HANDPIECE FOR EXCISION OF HAIR GRAFTSAugust 2023June 2025Allow2301YesNo
18230066MAGNETIC COMPRESSION ANASTOMOSIS DEVICE WITH MULTIPIECE VERTEBRAAugust 2023October 2024Allow1420NoNo
18357256PIXEL ARRAY MEDICAL SYSTEMS, DEVICES AND METHODSJuly 2023March 2025Abandon2010YesNo
18224246AUTOMATED INSERTION DEVICEJuly 2023April 2025Abandon2110YesNo
18261050ENDOSCOPIC TISSUE RESECTION DEVICEJuly 2023May 2025Allow2200NoNo
18260904A CONTROL HANDLE FOR AN ATHERECTOMY DEVICEJuly 2023August 2025Allow2531YesNo
18214794SURGICAL BLADE FOR PERFORMING CUTTING AND SUCTIONJune 2023July 2025Abandon2550NoNo
18339049BALLOON CATHETER AND METHODS OF USE TO REDUCE RESIDUAL STENOSISJune 2023March 2026Allow3311YesNo
18321519Tick Removal and Encapsulation DeviceMay 2023July 2025Allow2601YesNo
18036434BALLOON FOR BALLOON CATHETERMay 2023October 2025Allow2910YesNo
18033946APPARATUS AND METHOD FOR MECHANICALLY DISINTEGRATING TISSUE INTO MICROGRAFTS, AND FEEDER PIECE USED IN CONNECTION WITH THE DISINTEGRATION OF TISSUEApril 2023April 2024Allow1111YesNo
18134507INTRAVASCULAR LITHOTRIPSYApril 2023November 2023Allow810YesNo
18299005Blood Vessel Detection and AvoidanceApril 2023June 2024Allow1400YesNo
18027142LACRIMAL SAC INCISION KNIFEMarch 2023July 2025Allow2810NoNo
18245060Capacitive Sensor for Precisely Measuring High Strain on the Surface of a Balloon of a Balloon CatheterMarch 2023May 2025Allow2610YesNo
18181401INCISIONLESS GASTRIC BYPASS SYSTEMMarch 2023January 2026Allow3530YesNo
18171032ARTICULATION FEATURES FOR ULTRASONIC SURGICAL INSTRUMENTFebruary 2023March 2025Allow2520YesNo
18167107HEATED ENDOVASCULAR CATHETER INJECTION DEVICEFebruary 2023February 2025Allow2420YesNo
18104516ENDOPROSTHESIS DELIVERY SYSTEM WITH IMPROVED RETRACTIONFebruary 2023December 2024Allow2310YesNo
18102280MAGNETIC ANASTOMOSIS DEVICES AND METHODS OF DELIVERYJanuary 2023August 2025Abandon3130YesNo
18149759INTRAOCULAR LENS INJECTORJanuary 2023April 2025Allow2720YesNo
18012361Pulse Control For Ultrasonic Tool SystemsDecember 2022September 2025Allow3301NoNo
18084689Radially-Firing Electrohydraulic Lithotripsy ProbeDecember 2022December 2024Abandon2420NoNo
18011105SUCTION DEVICE FOR FOREIGN SUBSTANCES FROM BODYDecember 2022August 2024Allow2030YesNo
18070531SURGICAL INSTRUMENT WITH SELECTORNovember 2022March 2026Allow3911NoNo
17983259ENDOLUMINAL PROSTHESIS SYSTEMS AND METHODSNovember 2022April 2024Allow1810NoNo
18048576SURGICAL IMPLANT DELIVERY WITH LOCKABLE PLUNGEROctober 2022October 2025Allow3610YesNo
17966977WORKING CHANNEL DEVICE FOR AN ENDOSCOPIC TOOLOctober 2022October 2024Allow2420YesNo
17937294METHOD FOR TUNING LITHOTRIPSY FREQUENCY TO TARGET SIZESeptember 2022March 2025Allow3000NoNo
17955233AUTOMATED IMAGE-GUIDED TISSUE RESECTION AND TREATMENTSeptember 2022November 2024Abandon2530NoNo
17870925TRANSCATHETER PROSTHETIC HEART VALVE DELIVERY SYSTEM WITH DISTAL CUTTING ASSEMBLYJuly 2022June 2024Allow2310YesNo
17861137INTRAVASCULAR LITHOTRIPSYJuly 2022December 2022Allow510YesNo
17847858IMPLANT TOOLS FOR EXTRAVASCULAR IMPLANTATION OF MEDICAL LEADSJune 2022July 2025Allow3610YesNo
17844464WEDGE DISSECTORS FOR A MEDICAL BALLOONJune 2022December 2022Allow610NoNo
17659040INCISIONLESS GASTRIC BYPASS SYSTEMApril 2022December 2022Allow810YesNo
17687069SNARE DEVICEMarch 2022March 2024Allow2410YesNo
17683836ENDOSCOPIC TREATMENT DEVICEMarch 2022September 2025Allow4210NoNo
17681160EARWAX REMOVAL DEVICEFebruary 2022March 2024Allow2510YesNo
17678394WEDGE DISSECTORS FOR A MEDICAL BALLOONFebruary 2022July 2022Allow410NoNo
17581792INTRAGASTRIC DEVICEJanuary 2022June 2023Allow1720YesNo
17565095TISSUE DEFLECTING DEVICES AND RELATED METHODS OF USEDecember 2021August 2024Allow3120YesNo
17644173LITHOPLASTY BALLOON SYSTEMS, DEVICES AND METHODS WITH ELECTRODE PAIRS HAVING MULTIPLE SPARK GAPSDecember 2021March 2024Abandon2710NoNo
17548212SINGLE OPERATOR DEVICE FOR DELIVERING AN OCULAR IMPLANTDecember 2021October 2023Allow2351YesNo
17615758BALLOON DILATION DEVICEDecember 2021May 2025Allow4210YesNo
17537715TISSUE RESECTING DEVICE INCLUDING A BLADE LOCK AND RELEASE MECHANISMNovember 2021April 2025Allow4040YesNo
17454668INTRAVASCULAR LITHOTRIPSY SYSTEMS AND METHODSNovember 2021February 2024Allow2720YesNo
17454718SYSTEMS, DEVICES AND METHODS FOR SELECTION OF ARC LOCATION WITHIN A LITHOPLASTY BALLOON SPARK GAPNovember 2021July 2023Allow2000NoNo
17454721SYSTEMS, DEVICES AND METHODS FOR MONITORING VOLTAGE AND CURRENT AND CONTROLLING VOLTAGE OF VOLTAGE PULSE GENERATORSNovember 2021October 2023Allow2310YesNo
17454667METHODS, SYSTEMS AND DEVICES FOR GENERATING PRESSURE WAVES IN INTRAVASCULAR LITHOTRIPSYNovember 2021August 2024Allow3410YesNo
17454587SYSTEMS, DEVICES AND METHODS FOR GENERATING SUBSONIC PRESSURE WAVES IN INTRAVASCULAR LITHOTRIPSYNovember 2021July 2023Allow2000YesNo
17454574INTRAVASCULAR LITHOTRIPSY SYSTEM AND DEVICENovember 2021February 2024Allow2720NoNo
17516799MOTORIZED EAR-CLEANING DEVICENovember 2021December 2023Allow2520YesNo
17514595APPARATUS FOR REMOVING A HOOK WITH A BARBOctober 2021September 2023Abandon2210NoNo
17500078DEVICE, BRUSH, RANGE AND METHOD FOR REMOVING ACARINE PARASITES BY ROTATIONOctober 2021July 2025Allow4511NoNo
17496446AUTOMATED INSERTION DEVICEOctober 2021May 2023Allow1900NoNo
17449883SYSTEMS, DEVICES AND METHODS FOR GENERATING PATTERNS OF VOLTAGE PULSES AND ELECTRICAL ARCS BETWEEN SPACED-APART ELECTRODE PAIRS IN INTRAVASCULAR LITHOTRIPSYOctober 2021September 2025Allow4721YesNo
17486408EAR AND NOSE CLEANING DEVICESeptember 2021April 2025Allow4250YesNo
17476510SURGICAL DILATORS AND ASSEMBLIES AND METHODS THEREOFSeptember 2021October 2025Allow4921YesNo
17411489Transseptal Delivery System for Aortic Valve Therapeutic DevicesAugust 2021August 2023Abandon2420YesNo
17408609Refrigerant Dispenser for Tick RemovalAugust 2021April 2024Abandon3210NoNo
17406154Skin Graft HarvesterAugust 2021July 2024Allow3400YesNo
17403819CANDLING ASSEMBLY INCLUDING A DISK OPERATIVELY ATTACHED TO AN EAR CANDLE FOR USE WITH AN EARAugust 2021March 2024Abandon3120NoNo
17399410SYSTEMS AND METHODS FOR LOADING AND DEPLOYING AN INTRAVASCULAR DEVICEAugust 2021February 2025Allow4320NoNo
17396988DELIVERY BALLOON WITH RETRACTABLE RETENTION CUFFSAugust 2021March 2024Allow3230YesNo
17390250ENDOVASCULAR DEVICES AND METHODS FOR EXPLOITING INTRAMURAL SPACEJuly 2021February 2026Allow5440YesYes
17427241EXTERNAL NEEDLE GUIDE AND ANCHORJuly 2021August 2025Allow4850YesYes
17390078WEDGE DISSECTORS FOR A MEDICAL BALLOONJuly 2021January 2022Allow510YesNo
17390134WEDGE DISSECTORS FOR A MEDICAL BALLOONJuly 2021January 2022Allow510YesNo
17378928UNIVERSAL FACIAL REJUVENATION TREATMENT SYSTEM (U-FRTS)July 2021August 2023Allow2520YesNo
17368549MONITORING SYSTEM FOR A HEMOSTASIS BANDJuly 2021October 2024Allow3930YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner DANG, ANH TIEU.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
8
Examiner Affirmed
4
(50.0%)
Examiner Reversed
4
(50.0%)
Reversal Percentile
79.0%
Higher than average

What This Means

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.

Strategic Value of Filing an Appeal

Total Appeal Filings
31
Allowed After Appeal Filing
11
(35.5%)
Not Allowed After Appeal Filing
20
(64.5%)
Filing Benefit Percentile
58.5%
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, 35.5% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

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 DANG, ANH TIEU - Prosecution Strategy Guide

Executive Summary

Examiner DANG, ANH TIEU works in Art Unit 3771 and has examined 316 patent applications in our dataset. With an allowance rate of 82.9%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 37 months.

Allowance Patterns

Examiner DANG, ANH TIEU's allowance rate of 82.9% places them in the 56% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by DANG, ANH TIEU receive 2.27 office actions before reaching final disposition. This places the examiner in the 63% 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 DANG, ANH TIEU is 37 months. This places the examiner in the 34% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +13.4% benefit to allowance rate for applications examined by DANG, ANH TIEU. 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, 25.9% of applications are subsequently allowed. This success rate is in the 42% 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 32.1% of cases where such amendments are filed. This entry rate is in the 47% 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.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 33.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 34% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 74.2% of appeals filed. This is in the 63% percentile among all examiners. Of these withdrawals, 43.5% 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.

Petition Practice

When applicants file petitions regarding this examiner's actions, 36.4% are granted (fully or in part). This grant rate is in the 25% 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 45% 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 1.5% of allowed cases (in the 65% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

Prosecution Strategy Recommendations

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

    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.