USPTO Examiner LANCASTER LINDSAY REGAN - Art Unit 3794

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18697221SYSTEMS FOR INCISING TISSUEMarch 2024November 2025Allow2020YesNo
18501507SYSTEMS, DEVICES, AND ASSOCIATED METHODS FOR NEUROMODULATION WITH ENHANCED NERVE TARGETINGNovember 2023December 2025Allow2540YesNo
18464840CONFIGURING PERIMETER OF BALLOON ELECTRODE AS LOCATION SENSORSeptember 2023August 2024Allow1110NoNo
18359802MINIMALLY INVASIVE DEVICE AND METHOD FOR TIGHTENING SAGGING SKIN BY LINEAR TENSING AND STIMULATION OF COLLAGEN PRODUCTION, WHEREIN THE ANESTHESIA, HEAT, AND ADDITIONAL COLLAGEN INDUCTION OR ANTI-INFLAMMATORY FLUIDS CAN BE APPLIED WITH THE SAME APPARATUS AND IN THE SAME AREAJuly 2023May 2025Abandon2220NoNo
18069370Electrophysiology Device with Electrodes Having Increased Surface AreaDecember 2022March 2024Allow1520NoNo
17952615Magnetorheological Elastomer And Magnetorheological Fluid For Clinical WrapSeptember 2022July 2023Allow910NoNo
17892509PULSE FIELD ABLATION FOR THE TREATMENT OF MIGRAINESAugust 2022October 2025Abandon3810NoNo
17799328BALLOON CATHETER AND BALLOON CATHETER SYSTEMAugust 2022January 2026Abandon4120YesNo
17714622SYSTEMS, DEVICES, AND ASSOCIATED METHODS FOR NEUROMODULATION WITH ENHANCED NERVE TARGETINGApril 2022August 2023Allow1610NoNo
17688783CRYOSURGICAL SYSTEM WITH PRESSURE REGULATIONMarch 2022July 2023Allow1620NoNo
17620567ABLATION SYSTEM AND NERVE DETECTION DEVICE THEREFORDecember 2021January 2026Abandon4920NoNo
17555220Irreversible Electroporation Return Electrode and SystemDecember 2021September 2025Abandon4530NoNo
17613853Conductive Member For Use In Radiofrequency AblationNovember 2021March 2025Abandon3910NoNo
17608067MAPPING AND ABLATION CATHETER WITH MULTIPLE LOOP SEGMENTSNovember 2021December 2025Allow4940YesNo
17452305DEVICES, SYSTEMS, AND METHODS FOR TREATMENT OF HEART FAILURE BY SPLANCHNIC NERVE ABLATIONOctober 2021June 2023Allow2010NoNo
17494648CATHETER APPARATUSES FOR MODULATION OF NERVES IN COMMUNICATION WITH THE PULMONARY SYSTEM AND ASSOCIATED SYSTEMS AND METHODSOctober 2021July 2025Abandon4521YesNo
17465202THERMAL CUTTING-ASSISTED TISSUE RESECTION DEVICES AND SYSTEMSSeptember 2021February 2025Abandon4201NoNo
17403047ACCURATE TISSUE PROXIMITYAugust 2021August 2025Allow4840YesYes
17376650ARTHROSCOPIC DEVICES AND METHODSJuly 2021August 2024Allow3730YesNo
17354386ELECTRODE UNIT AND ENDOSCOPE SYSTEMJune 2021September 2025Abandon5020YesNo
17312495SYSTEMS AND METHODS FOR THERAPEUTIC NASAL NEUROMODULATIONJune 2021May 2024Allow3520NoNo
17235119ADAPTIVE ECG TRIGGERING IN AN ABLATION SYSTEMApril 2021January 2026Abandon5730YesYes
17282800Cryogenic ApplicatorApril 2021January 2026Allow5830YesNo
17213525MEDICAL DEVICEMarch 2021August 2025Abandon5320NoNo
17208329SYSTEMS AND METHODS FOR PROSTATE TREATMENTMarch 2021October 2025Allow5530YesNo
17202232RADIO FREQUENCY ABLATION CATHETER, RADIO FREQUENCY ABLATION SYSTEM FOR LUNGS, CORRESPONDING CONTROL METHODS AND CONTROL APPARATUSES THEREFOR, AND COMPUTER-READABLE STORAGE MEDIUMMarch 2021June 2025Abandon5120NoNo
17197384ROBOTIC COLPOTOMY SYSTEMSMarch 2021August 2024Abandon4221YesNo
17154686MINIMALLY INVASIVE DEVICE AND METHOD FOR TIGHTENING SAGGING SKIN BY LINEAR TENSING AND STIMULATION OF COLLAGEN PRODUCTION, WHEREIN THE ANESTHESIA, HEAT, AND ADDITIONAL COLLAGEN INDUCTION OR ANTI-INFLAMMATORY FLUIDS CAN BE APPLIED WITH THE SAME APPARATUS AND IN THE SAME AREAJanuary 2021August 2025Abandon5541NoNo
17137705ENDOSCOPIC ULTRASOUND-GUIDED CELIAC PLEXUS ABLATION AND SENSING DEVICEDecember 2020June 2025Abandon5340YesNo
17051359ABLATION LESION ASSESSMENT METHOD AND SYSTEMOctober 2020August 2025Abandon5730NoNo
17078367METHODS OF ENSURING PULSED FIELD ABLATION GENERATOR SYSTEM ELECTRICAL SAFETYOctober 2020January 2025Allow5120YesNo
17034078MEDICAL DEVICESeptember 2020December 2024Allow5030YesNo
17006725INSTRUMENT FOR PRODUCING TISSUE EFFECTS AT OR NEAR AN ENDOMETRIUMAugust 2020November 2023Abandon3940YesNo
16940802CONTROLLING IRREVERSIBLE ELECTROPORATION ABLATION USING A FOCAL CATHETER HAVING CONTACT-FORCE AND TEMPERATURE SENSORSJuly 2020September 2025Abandon6080YesNo
16946824PATCH ELECTRODE INCLUDING TEMPERATURE SENSING CIRCUIT AND METHODS OF USING SAMEJuly 2020February 2023Abandon3110YesNo
16908054SURFACE ABLATION DEVICE, SYSTEM AND METHODJune 2020August 2024Abandon5040NoNo
16876284MINIMALLY INVASIVE ASSEMBLY FOR LUNG ABLATIONMay 2020January 2025Abandon5650NoNo
16775572IRRIGATION FLUID FOR RESECTIONJanuary 2020January 2023Allow3610NoNo
16727264THERAPEUTIC TISSUE MODULATION DEVICES AND METHODSDecember 2019June 2025Allow6061YesNo
16704371CONTROLLED TEMPERATURE WATER BOTTLEDecember 2019May 2023Abandon4210NoNo
16696965OPHTHALMIC DEVICE FOR TREATING DRY EYENovember 2019October 2023Abandon4720NoNo
16692363CRYOBALLOON FOR INTRAVASCULAR CATHETER SYSTEMNovember 2019October 2025Abandon6060YesNo
16688926COLD LEG WRAPNovember 2019March 2023Abandon4010NoNo
16673428DISSECTION DEVICE FOR TISSUENovember 2019February 2023Abandon3911NoNo
16661171MEDICAL DEVICE SYSTEMS AND METHODS FOR ACTIVATING TRANSDUCERS BASED ON DELIVERY SHAFT MEMBER TEMPERATUREOctober 2019November 2023Allow4940YesNo
16605350PLASMA IRRADIATION DEVICE, HANDPIECE, AND SURGICAL OPERATION DEVICEOctober 2019April 2025Abandon6051NoNo
16574375METHOD AND APPARATUS FOR FACILITATING REDUCTION IN USER'S FATIGUESeptember 2019September 2023Abandon4820NoNo
16493646GENERATOR FOR THE DELIVERY OF HIGH FREQUENCY ALTERNATING CURRENT TO A MEDICAL INSTRUMENTSeptember 2019February 2024Allow5330YesNo
16492888ADAPTIVE AND SELF-ADAPTIVE PLASMA CANCER THERAPEUTIC PLATFORMSeptember 2019July 2022Allow3520YesNo
16541374DYNAMIC ABLATION AND SENSING ACCORDING TO CONTACT OF SEGMENTED ELECTRODESAugust 2019July 2024Allow5950NoNo
16540777HANDHELD DISSECTORAugust 2019April 2022Allow3210YesNo
16477204ESTIMATION OF EFFECTIVENESS OF ABLATION ADJACENCYJuly 2019June 2023Allow4730NoNo
16434939ARTHROSCOPIC DEVICES AND METHODSJune 2019July 2024Allow6060NoNo
16467426METHOD AND SYSTEMS FOR REDUCING TREATMENT VARIABILITY AND INCREASING TREATMENT EFFICACY AND DURABILITYJune 2019September 2023Allow5220NoNo
16463324RADIO FREQUENCY ABLATION CATHETER AND SYSTEMMay 2019January 2024Abandon5541NoNo
16403942Assembly For Sequentially Percutaneously Applying An Electrode And An Anesthetic To TissueMay 2019February 2023Allow4520YesNo
16347158HIGH-FREQUENCY THERMAL THERAPY DEVICEMay 2019June 2023Abandon5030YesNo
16392733CUTTING GUARD WITH RADIOFREQUENCY DISSECTIONApril 2019January 2022Allow3210YesNo
16392980BIPOLAR FORCEPS FOR HEPATIC TRANSECTIONApril 2019August 2022Abandon4020YesNo
16393263MULTIFUNCTIONAL ELECTROSURGICAL INSTRUMENTS WITH DYNAMIC ELECTRODE ASSEMBLIESApril 2019March 2025Allow6080YesNo
16392054SYSTEM AND METHOD FOR MICRO-SIZED COLD ATMOSPHERIC PLASMA TREATMENTApril 2019October 2022Allow4220NoNo
16391635METHODS AND SYSTEMS FOR ULTRASONIC VESSEL SEALINGApril 2019September 2022Allow4130YesNo
16390311ARTHROSCOPIC DEVICES AND METHODSApril 2019September 2023Allow5351YesNo
16389343CRYOSURGICAL SYSTEM WITH PRESSURE REGULATIONApril 2019October 2021Allow3010NoNo
16389154MAGNETORHEOLOGICAL ELASTOMER AND MAGNETORHEOLOGICAL FLUID FOR CLINICAL WRAPApril 2019July 2022Allow3920YesNo
16387215ARTHROSCOPIC DEVICES AND METHODSApril 2019January 2023Allow4541NoNo
16385994MICROWAVE TISSUE ABLATION PROBE WITH NON-METALLIC INTRODUCER SETApril 2019December 2021Allow3230NoNo
16384596METHOD FOR INHIBITING AIR BUBBLES ON AN INFLATABLE BALLOON OF AN INTRAVASCULAR BALLOON CATHETER SYSTEMApril 2019July 2021Abandon2701NoNo
16340106INDUCED CELL MORPHOLOGY ELECTROPORATIONApril 2019May 2024Allow6030YesNo
16337828ABLATION CATHETER TIPMarch 2019October 2021Allow3110NoNo
16365938DEVICE WITH LOOP ELECTRODES FOR TREATMENT OF MENORRHAGIAMarch 2019September 2022Allow4230NoNo
16364835MEDICAL DEVICES AND RELATED METHODSMarch 2019August 2022Allow4131YesNo
16363892APPARATUS FOR TISSUE ABLATION USING RADIOFREQUENCY ENERGY AND METHOD OF USEMarch 2019April 2022Allow3720YesNo
16294667THERAPEUTIC ABLATION OF TISSUE USING IMPEDANCE MODULATED RADIO FREQUENCYMarch 2019October 2022Abandon4330YesNo
16290819IRRIGATION CONTROL DURING ABLATIONMarch 2019April 2021Abandon2510NoNo
16277974MEDICAL DEVICE AND METHOD FOR THE DENERVATION OF RENAL PERIVASCULAR NERVESFebruary 2019August 2022Abandon4220NoNo
16255579MULTIELECTRODE CATHETERJanuary 2019July 2025Allow6041YesYes
16251807ENERGY DELIVERY RETURN PATH DEVICES AND METHODSJanuary 2019March 2023Abandon5041YesNo
16318447DEVICES, SYSTEMS, AND METHODS FOR TREATMENT OF HEART FAILURE BY SPLANCHNIC NERVE ABLATIONJanuary 2019September 2021Allow3110NoNo
16220187Introducer for Use with an RF Ablation Probe and Associated RF Ablation Probe AssemblyDecember 2018September 2022Abandon4521YesNo
16308757SYSTEMS AND METHODS FOR IMPROVED DELIVERY OF EXPANDABLE CATHETER ASSEMBLIES INTO BODY LUMENSDecember 2018May 2023Allow5330NoNo
16198487Configuring Perimeter of Balloon Electrode as Location SensorNovember 2018February 2023Allow5030YesNo
16196255IRRIGATION CONTROL DURING ABLATIONNovember 2018April 2023Abandon5350NoNo
16193610Electrophysiology Device with Electrodes Having Increased Surface AreaNovember 2018September 2022Allow4630NoNo
16191000SYSTEMS, DEVICES, AND ASSOCIATED METHODS FOR NEUROMODULATION WITH ENHANCED NERVE TARGETINGNovember 2018December 2021Allow3720YesNo
16182440Attaining Higher Impedances for Large Indifferent ElectrodesNovember 2018April 2022Abandon4111NoNo
16180357INDIFFERENT ELECTRODE WITH SELECTABLE AREANovember 2018March 2025Allow6090YesNo
16170689USE OF ELECTROMAGNETIC FIELDS IN IRE DEVICE DELIVERY AND THERAPY MONITORINGOctober 2018May 2023Abandon5571NoNo
16091497ELECTROSURGICAL APPARATUS AND METHOD FOR PROMOTING HAEMOSTASIS IN BIOLOGICAL TISSUEOctober 2018May 2021Allow3110NoNo
16087098Circular Microwave Ablation Antenna and SystemSeptember 2018January 2022Allow4020YesNo
16120860THERMAL ENERGY TREATMENT DEVICESeptember 2018July 2021Abandon3410NoNo
16110631SELF-HEATING PERSONAL COVERINGAugust 2018July 2021Abandon3501NoNo
16109247Zone-Controlled Warming SystemAugust 2018April 2023Abandon5660NoNo
16105860CAUTERIZING DEVICE AND SYSTEMAugust 2018March 2022Allow4330YesNo
16103793Intra-Balloon Deflection Mechanism for Enhanced Balloon ManeuverabilityAugust 2018February 2025Abandon6040NoYes
16103806Heat Transfer During Ablation ProceduresAugust 2018December 2022Allow5241YesNo
16060993ELECTROSURGICAL SYSTEM FOR GENERATING HIGH-FREQUENCY ALTERNATING CURRENTJune 2018February 2024Allow6060YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LANCASTER, LINDSAY REGAN.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
3
Examiner Affirmed
2
(66.7%)
Examiner Reversed
1
(33.3%)
Reversal Percentile
55.8%
Higher than average

What This Means

With a 33.3% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
4
Allowed After Appeal Filing
2
(50.0%)
Not Allowed After Appeal Filing
2
(50.0%)
Filing Benefit Percentile
84.3%
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, 50.0% 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 LANCASTER, LINDSAY REGAN - Prosecution Strategy Guide

Executive Summary

Examiner LANCASTER, LINDSAY REGAN works in Art Unit 3794 and has examined 87 patent applications in our dataset. With an allowance rate of 52.9%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 47 months.

Allowance Patterns

Examiner LANCASTER, LINDSAY REGAN's allowance rate of 52.9% places them in the 14% 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 LANCASTER, LINDSAY REGAN receive 2.95 office actions before reaching final disposition. This places the examiner in the 85% percentile for office actions issued. This examiner issues more office actions than most examiners, which may indicate thorough examination or difficulty in reaching agreement with applicants.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by LANCASTER, LINDSAY REGAN is 47 months. This places the examiner in the 10% 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 +28.8% benefit to allowance rate for applications examined by LANCASTER, LINDSAY REGAN. This interview benefit is in the 77% 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, 22.4% of applications are subsequently allowed. This success rate is in the 28% 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 12.7% of cases where such amendments are filed. This entry rate is in the 13% 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.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 0.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 23% percentile among all examiners. Note: Pre-appeal conferences show limited success with this examiner compared to others. While still worth considering, be prepared to proceed with a full appeal brief if the PAC does not result in favorable action.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 40.0% of appeals filed. This is in the 8% percentile among all examiners. Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 133.3% are granted (fully or in part). This grant rate is in the 97% 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 48% 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 4.3% of allowed cases (in the 79% 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.

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.
  • Expect multiple rounds of prosecution: This examiner issues more office actions than average. Address potential issues proactively in your initial response and consider requesting an interview early in prosecution.
  • 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.