USPTO Examiner ANDREWS DAVID L - Art Unit 3672

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18791183RUPTURE DISC ASSEMBLYJuly 2024May 2025Allow900NoNo
18761047PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGYJuly 2024May 2025Allow1020YesNo
18710854THREAD PITCHMay 2024January 2025Allow900NoNo
18641566Tri-Axial Shock Absorber SubApril 2024June 2025Allow1410NoNo
18403579DOWNHOLE SLEEVES AND MAGNETIC ASSEMBLIESJanuary 2024June 2025Allow1820NoNo
18398301HYDRAULIC COLLAPSIBLE ROTARY STAND FOR WIRELINE CORING UNDERGROUND DRILL RIGDecember 2023March 2025Allow1500YesNo
18541378DUAL ROD ASSEMBLY AND COLLAR INSTALLATION METHODDecember 2023December 2024Allow1210YesNo
18525787ELECTRICALLY OPERATED LOW POWER COMPLETION CONTROL SYSTEMNovember 2023May 2025Allow1710YesNo
18494047SEAL ELEMENT WITH PROFILED SURFACE FOR A DOWNHOLE TOOL IN A WELLBOREOctober 2023December 2024Allow1310YesNo
18492474ANCHORING SUBASSEMBLY INCLUDING A RELAXATION MECHANISMOctober 2023May 2025Allow1910YesNo
18381043FIBER DEPLOYMENT AND MONITORING ON DEMAND WITH FRACTURING SPREAD CONTROLOctober 2023July 2025Allow2020YesNo
18555598THREADED CONNECTION FOR EXPLORATION AND PRODUCTION OF A HYDROCARBON WELLOctober 2023July 2024Allow900NoNo
18486629DRILL BIT, METHOD, AND SYSTEMOctober 2023March 2025Allow1720YesNo
18375880Cable Connectors for Use DownholeOctober 2023September 2024Allow1110YesNo
18553376TOOL HOUSING FOR USE IN A WELLBORE TOOL STRINGSeptember 2023June 2025Allow2011NoNo
18478598WIRELINE RETRIEVABLE ANNULAR PRESSURE BLEEDERSeptember 2023June 2025Allow2120NoNo
18477506WELL INITIATION SERVICE SYSTEM WITH PACKER CONTROL SYSTEMSeptember 2023September 2024Allow1200NoNo
18242292System and Method for Deploying ESP on Coiled TubingSeptember 2023March 2025Allow1911YesNo
18240188Noise Characterization In Formation TestingAugust 2023August 2024Allow1210YesNo
18239625FLEXIBLE ANVIL FOR A PLUNGER LIFT SYSTEMAugust 2023April 2025Allow1920YesNo
18457935SUB-SURFACE SAFETY VALVE WITH ENERGY HARVESTING SYSTEM AND WIRELESS ACTIVATIONAugust 2023January 2025Allow1610NoNo
18453053DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONSAugust 2023April 2025Allow1920NoNo
18235635Methods for Conducting a Pressure Test to Minimize Over Pressurization for a Fluid Distribution SystemAugust 2023April 2025Allow2030YesNo
18264293SYSTEM AND METHOD FOR STIMULATING MULTIPLE ZONESAugust 2023August 2024Allow1210YesNo
18362554METHOD AND APPARATUS FOR OPERATING HYDRAULIC EQUIPMENT THROUGH A ROTARY TABLEJuly 2023November 2024Allow1510NoNo
18226612DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONSJuly 2023August 2024Allow1310NoNo
18226585DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONSJuly 2023July 2024Allow1210YesNo
18273951PULSED HIGH-POWER DRILL BIT AND DRILLING TOOLJuly 2023March 2025Allow2010NoNo
18357271Multi-Plunger Pumps and Associated Drive SystemsJuly 2023December 2023Allow510YesNo
18353722TOP POT ASSEMBLYJuly 2023November 2024Allow1620NoNo
18222406PNEUMATIC LIFT AND RECHARGE SYSTEM FOR HORIZONTAL WATER WELLSJuly 2023August 2024Allow1310NoNo
18341728Systems for a Low Friction Slip Sleeve and Related MethodsJune 2023May 2025Allow2310YesNo
18339468PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGYJune 2023April 2024Allow1010NoNo
18335992AUTOMATED APPARATUS FOR OIL FIELD DRILLING AND WORKOVER OPERATIONSJune 2023November 2024Allow1710NoNo
18199668Fixed Cutter Drill Bits and Cutter Element with Secondary Cutting Edges for SameMay 2023June 2025Allow2511NoNo
18317754SEALING SYSTEM FOR DOWNHOLE TOOLMay 2023April 2024Allow1110NoNo
18303433DOWNHOLE TOOL STRINGApril 2023January 2025Allow2120YesNo
18119214Wireline Retrievable Opening ProngMarch 2023June 2025Allow2710NoNo
18021837DOWNHOLE ELECTRIC STEAM GENERATOR WITH HEATING ELEMENTSFebruary 2023May 2025Abandon2720NoNo
18167485LINER-TOP PACKER SETTING ARRANGEMENT, METHOD, AND SYSTEMFebruary 2023October 2024Abandon2010NoNo
18161187Underbalanced Drilling Vibrating Screen Integrated With Automatic Drainage And Vacuum ChucksJanuary 2023September 2024Allow1910NoNo
18012148VALVE AND METHOD FOR MULTI-STAGE WELL STIMULATIONDecember 2022June 2025Allow3030YesNo
18068196DUAL ROD ASSEMBLY AND COLLAR INSTALLATION METHODDecember 2022August 2023Allow810NoNo
18083176DETERMINATION OF MUD-FILTRATE CONTAMINATION AND CLEAN FORMATION FLUID PROPERTIESDecember 2022January 2024Allow1310NoNo
18077920REMOVAL AND COLLECTION OF WELLBORE SCALE AND DEBRISDecember 2022September 2024Allow2210YesNo
18073771INTERNAL SLIP INCLUDING ONE OR MORE SYMMETRICAL TEETHDecember 2022April 2025Allow2920YesNo
18000426AUTOFILL, CIRCULATION, AND PRODUCTION VALVE FOR WELL COMPLETION SYSTEMSDecember 2022July 2024Allow1910YesNo
18071962SEAL BACKUP AND SEAL SYSTEMNovember 2022September 2024Allow2120YesNo
17990442Drill Bit Cutter With Shaped Portion Matched To KerfNovember 2022September 2024Allow2210YesNo
17988881PERMANENT ELECTROMAGNET SENSOR TO DETECT THE END OF REVERSE CEMENTINGNovember 2022May 2024Allow1810YesNo
18055942SIDETRACK CASING ASSEMBLY FOR DRILLING SIDETRACK WELLBORESNovember 2022April 2024Allow1710YesNo
18051591WELLHEAD PENETRATOR FOR ELECTRICAL CONNECTIONSNovember 2022May 2023Allow610YesNo
18050919SELF-RUNNING LOWER COMPLETION SCREENOctober 2022February 2024Allow1610NoNo
17975927Downhole Pump Gas Eliminating Seating Nipple SystemOctober 2022May 2025Abandon3120NoNo
18050857DRILLING TURBINE AND METHOD OF DIRECTIONAL DRILLINGOctober 2022April 2025Allow3020NoNo
17971382System and method for Hydraulically Expanding a Liner HangerOctober 2022July 2023Allow900NoNo
17965951OSCILLATION REDUCTION TOOL AND METHODOctober 2022May 2024Allow1910YesNo
17938899KICKOVER TOOLOctober 2022November 2023Allow1300YesNo
17917485TOOL AND METHOD FOR VERIFICATION OF PRESSURE INTEGRITY BEHIND DOWNHOLE CASINGOctober 2022July 2024Allow2110NoNo
17955815ALIGNMENT SUB AND PERFORATING GUN ASSEMBLY WITH ALIGNMENT SUBSeptember 2022January 2024Allow1520NoNo
17936482LINER HANGER EXPANSION TOOL WITH ROTATING BALL VALVESeptember 2022April 2024Allow1910YesNo
17915461RUPTURE DISC ASSEMBLYSeptember 2022April 2024Allow1910YesNo
17940602SYSTEM FOR SEGMENTED SIMULTANEOUS WATER INJECTION AND OIL RECOVERY THROUGH DOUBLE PIPES IN HORIZONTAL SECTIONSeptember 2022March 2024Allow1910NoNo
17940543CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEMSeptember 2022September 2024Allow2421YesNo
17939656WASHOUT MITIGATIONSeptember 2022April 2024Allow1910NoNo
17929999DISSOLVABLE BRIDGE PLUGSSeptember 2022February 2024Allow1710NoNo
17903633Downhole Fluid Acquisition, Hidden Pay Identification, and Stimulation System and MethodSeptember 2022August 2023Allow1200NoNo
17890390GUIDE ASSEMBLY, METHOD AND SYSTEMAugust 2022March 2025Allow3120YesNo
17818536MICROWAVE HEATING TECHNIQUE FOR TREATMENT OF CONDENSATE BUILDUPAugust 2022December 2023Allow1610NoNo
17876131CLOSED LOOP MONITORING AND CONTROL OF A CHEMICAL INJECTION SYSTEMJuly 2022February 2025Abandon3030YesNo
17811432TUBING-CASING ANNULUS SCANNER TOOLJuly 2022February 2024Allow1910NoNo
17854969Ejector Manifold and Subsurface Process to Harvest Low-Pressure Natural GasJune 2022December 2023Allow1710NoNo
17843148DOWNHOLE PRODUCTION SYSTEM WITH FLOW DIVERTER FOR GAS SEPARATIONJune 2022January 2025Allow3121NoNo
17836962FLUID IDENTIFICATION OUTSIDE OF WELLBORE TUBINGJune 2022July 2024Allow2520YesNo
17836237MAGNETICALLY COUPLED SUBSURFACE SAFETY VALVEJune 2022August 2024Allow2620NoNo
17831658TUBING ANCHOR GAS VENT AND ASSOCIATED METHODS AND SYSTEMSJune 2022November 2024Abandon3040NoYes
17832024CLEANING A PRODUCTION LOGGING SPINNER FLOWMETERJune 2022December 2023Allow1810NoNo
17824892Electric Submersible Pump AssemblyMay 2022April 2024Abandon2310NoNo
17749605DOWNHOLE FLOW SENSING WITH POWER HARVESTINGMay 2022December 2023Allow1810YesNo
17734004DRILL PIPE WITH FLUTED GUN DRILLED PASSAGEWAYApril 2022October 2023Allow1710YesNo
17769240CROWN PLUG SECUREMENT SYSTEMApril 2022March 2024Allow2310NoNo
17721182DOWNHOLE ROTARY SLIP RING JOINT TO ALLOW ROTATION OF ASSEMBLIES WITH MULTIPLE CONTROL LINESApril 2022May 2024Allow2520YesNo
17700555PETROLEUM DRILL-STRING SHOCK ABSORBERSMarch 2022September 2024Allow3010NoNo
17696805PACKER APPARATUSMarch 2022October 2023Abandon1910NoNo
17654525ELECTRICAL WET-MATE CONNECTIONSMarch 2022April 2024Abandon2520YesNo
17690514WIRELESS TRANSMISSION AND RECEPTION OF ELECTRICAL SIGNALS VIA TUBING ENCASED CONDUCTORMarch 2022November 2024Allow3240YesNo
17686674DOWNHOLE FRICTION REDUCTION SYSTEMSMarch 2022September 2023Allow1910YesNo
17683678SYSTEM AND PROCESS FOR INSTALLING A HYDROCARBON PRODUCTION SYSTEMMarch 2022August 2023Allow1710NoNo
17638047METHOD OF ABANDONING A WELLFebruary 2022December 2024Abandon3420NoNo
17678895DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONSFebruary 2022April 2023Allow1410NoNo
17637757THREAD FORMATION FOR COUPLING DOWNHOLE TOOLSFebruary 2022September 2023Allow1910NoNo
17650123DUAL TUBING STRING ADAPTORFebruary 2022April 2023Allow1410NoNo
17586536DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONSJanuary 2022February 2024Allow2411NoNo
17583898Expandable Liner HangerJanuary 2022February 2024Allow2430YesNo
17628530ELASTOMER MOLDED WHEEL FOR DOWNHOLE TRACTORJanuary 2022May 2025Allow4040YesNo
17597600PORT FREE HYDRAULIC UNIBODY SYSTEM AND METHODOLOGY FOR USE IN A WELLJanuary 2022August 2023Allow2010YesNo
17572584SHIFTING TOOL AND ASSOCIATED METHODS FOR OPERATING DOWNHOLE VALVESJanuary 2022October 2023Abandon2110NoNo
17567110DOWNHOLE MCEI INDUCTIVE COUPLER WITH HELICAL COILJanuary 2022January 2023Allow1320NoNo
17550221SHEAR COUPLING FOR SUCKER ROD STRINGDecember 2021July 2023Allow1910NoNo
17596428CEMENTING AND SAND CONTROL SYSTEM AND METHODOLOGYDecember 2021November 2023Allow2310YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner ANDREWS, DAVID L.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
32
Examiner Affirmed
26
(81.2%)
Examiner Reversed
6
(18.8%)
Reversal Percentile
29.4%
Lower than average

What This Means

With a 18.8% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
68
Allowed After Appeal Filing
23
(33.8%)
Not Allowed After Appeal Filing
45
(66.2%)
Filing Benefit Percentile
53.0%
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, 33.8% 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 face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner ANDREWS, DAVID L - Prosecution Strategy Guide

Executive Summary

Examiner ANDREWS, DAVID L works in Art Unit 3672 and has examined 995 patent applications in our dataset. With an allowance rate of 73.2%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 30 months.

Allowance Patterns

Examiner ANDREWS, DAVID L's allowance rate of 73.2% places them in the 29% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by ANDREWS, DAVID L receive 2.13 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 ANDREWS, DAVID L is 30 months. This places the examiner in the 43% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +16.6% benefit to allowance rate for applications examined by ANDREWS, DAVID L. This interview benefit is in the 61% 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, 24.0% of applications are subsequently allowed. This success rate is in the 25% 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 30.2% of cases where such amendments are filed. This entry rate is in the 35% 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, 53.8% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 44% 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 55.6% of appeals filed. This is in the 22% percentile among all examiners. Of these withdrawals, 27.5% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). 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, 37.2% are granted (fully or in part). This grant rate is in the 34% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 6.6% of allowed cases (in the 92% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 1.6% of allowed cases (in the 62% 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:

  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

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.