USPTO Art Unit 1721 Prosecution Statistics

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19317225SYSTEM FOR ADJUSTMENT OF A SOLAR PANELSeptember 2025February 2026Allow510YesNo
19297092ELECTRIC LIFTING PHOTOVOLTAIC PANEL POWER GENERATION DEVICEAugust 2025December 2025Allow410NoNo
19286843HIGH-EFFICIENCY AND SCALABLE ELECTRIC PHOTOVOLTAIC DEVICEJuly 2025January 2026Allow601YesNo
19232230SYSTEM FOR SUPPLYING POWER TO A PORTABLE BATTERY USING AT LEAST ONE SOLAR PANELJune 2025October 2025Allow420NoNo
19229016PURLIN, PURLIN ASSEMBLY AND PHOTOVOLTAIC BRACKETJune 2025October 2025Allow410NoNo
19136188SOLAR ENERGY SYSTEM ON LAND AND WATERJune 2025December 2025Allow600YesNo
19218546SOLAR CELL AND PHOTOVOLTAIC MODULEMay 2025March 2026Allow900NoNo
19215962THIN-FILM SOLAR MODULE AND MANUFACTURING METHOD THEREOFMay 2025October 2025Allow511YesNo
19195636PHOTOVOLTAIC ARRAY TRACKING BRACKET AND CONTROL METHOD THEREOFApril 2025October 2025Allow510NoNo
19195617MULTI-MODE SWITCHING CONTROL SYSTEM FOR PHOTOVOLTAIC ARRAYApril 2025June 2025Allow100NoNo
19189364LAMINATED DOPANT SOURCE STRUCTURE, RELEVANT HIGH-QUALITY EMITTER AND PREPARATION METHOD THEREOFApril 2025October 2025Allow501NoNo
19124103SILICON SOLAR CELL AND MODULEApril 2025March 2026Allow1100NoNo
19174779INFRARED SENSORApril 2025January 2026Allow1000NoNo
19098548SOLAR CELL AND PHOTOVOLTAIC MODULEApril 2025January 2026Allow900NoNo
19092181PHOTOVOLTAIC SYSTEM AND CIRCUIT PROTECTION METHOD FOR PHOTOVOLTAIC SYSTEMMarch 2025March 2026Allow1200NoNo
19108260BACK CONTACT SOLAR CELL AND MANUFACTURING METHOD THEREFOR, AND PHOTOVOLTAIC MODULEMarch 2025June 2025Allow400NoNo
19051792BACK CONTACT SOLAR CELL AND METHOD FOR MANUFACTURING SAMEFebruary 2025November 2025Allow911NoNo
19047922SYSTEMS AND DEVICES FOR SECURING A PHOTOVOLTAIC MODULE TO A MOUNTING RAILFebruary 2025December 2025Allow1011NoNo
19038714SOLAR CELL MODULE AND METHOD FOR MANUFACTURING SOLAR CELL MODULEJanuary 2025January 2026Allow1200NoNo
19025429PASSIVATED CONTACT STRUCTURE AND SOLAR CELL COMPRISING THE SAME, CELL ASSEMBLY, AND PHOTOVOLTAIC SYSTEMJanuary 2025July 2025Allow610NoNo
19018763THREE-DIMENSIONAL SOLAR POWER GENERATION SYSTEM FOR SMART FARMSJanuary 2025February 2026Allow1310NoNo
19018537SYSTEM AND METHOD FOR FLEXIBLE SOLAR TRACKER AND TESTINGJanuary 2025March 2026Allow1411NoNo
19016443COATING APPARATUS, METHOD AND SYSTEM, SOLAR CELL, MODULE, AND POWER GENERATION SYSTEMJanuary 2025October 2025Allow900NoNo
19014894COATING APPARATUS, METHOD AND SYSTEM, SOLAR CELL, MODULE, AND POWER GENERATION SYSTEMJanuary 2025December 2025Allow1100NoNo
19014038Torque Tube Clamps for Automated Solar Panel InstallationJanuary 2025October 2025Allow911YesNo
19007880PHOTOVOLTAIC MODULEJanuary 2025September 2025Allow910YesNo
19007510PHOTOVOLTAIC ROOF TILESJanuary 2025November 2025Allow1100NoNo
19006436THERMOELECTRIC GENERATOR POWER GENERATION AT AN ATMDecember 2024November 2025Allow1100NoNo
18880266BACK-CONTACT BATTERY AND MANUFACTURING METHOD THEREOF, AND PHOTOVOLTAIC MODULEDecember 2024May 2025Allow501YesNo
18980575BYPASS DIODE ASSEMBLY FOR A PHOTOVOLTAIC MODULE AND METHOD FOR FABRICATINGDecember 2024October 2025Allow1000NoNo
18874474ENCAPSULANT FILM BASED ON FUNCTIONALIZED POLYOLEFINSDecember 2024January 2026Allow1300NoNo
18873636INTEGRATING A SOLAR PANEL IN A VEHICLE BODY PARTDecember 2024January 2026Allow1300NoNo
18868001Exterior Edge Seal for a ModuleNovember 2024February 2026Allow1520NoNo
18955649SOLAR CELL AND PHOTOVOLTAIC MODULENovember 2024September 2025Allow1000NoNo
18952528SNAP-CURE FLEXIBLE ELECTRICALLY CONDUCTIVE ONE COMPONENT (1K) EPOXY ADHESIVE COMPOSITIONNovember 2024October 2025Allow1100NoNo
18866843Photovoltaic frame and photovoltaic moduleNovember 2024January 2026Allow1400YesNo
18947449SELF-REPAIRING MULTI-JUNCTION PHOTOVOLTAIC CELL AND METHOD FOR SELF-REPAIRING SUCH A CELLNovember 2024March 2026Allow1610NoNo
18942761FLEXIBLE PHOTOVOLTAIC BRACKET WITH IMPROVED MODULE FASTENERNovember 2024September 2025Allow1000NoNo
18940342FLOATING TORQUE TUBE TRACKER ASSEMBLYNovember 2024October 2025Allow1211NoNo
18861306SOLAR-CELL MODULEOctober 2024January 2026Allow1510NoNo
18858892A BIFACIAL PV MODULE HYBRIDIZED WITH III-V PV CELLSOctober 2024January 2026Allow1501NoNo
18919847THERMOELECTRIC POWER GENERATION DEVICEOctober 2024November 2025Allow1300YesNo
18913234ADAPTIVE SOLAR PANEL MOUNTING AND PROTECTION APPARATUS AND METHOD THEREOFOctober 2024June 2025Allow811YesNo
18906003BACK CONTACT SOLAR CELL AND FABRICATION METHOD THEREOFOctober 2024September 2025Allow1200YesNo
18903607SYSTEM TO DISPLAY A VIVID IMAGE ON SOLAR CELLS HAVING FLEXIBLE PROPERTIESOctober 2024October 2025Allow1200NoNo
18899182HORIZONTAL BALANCED SOLAR TRACKERSeptember 2024April 2025Allow610NoNo
18898366SYSTEMS AND METHODS FOR SOLAR MODULE ASSEMBLYSeptember 2024May 2025Allow810YesNo
18894877SYSTEM FOR SUPPLYING POWER TO A PORTABLE BATTERY USING AT LEAST ONE SOLAR PANELSeptember 2024April 2025Allow710NoNo
18888868SOLAR CELL, MANUFACTURING METHOD THEREOF, AND PHOTOVOLTAIC MODULESeptember 2024October 2025Allow1310NoNo
18886902HYBRID DENSE SOLAR CELLS AND INTERCONNECTS FOR SOLAR MODULES AND RELATED METHODS OF MANUFACTURESeptember 2024October 2025Allow1300NoNo
18882961TECHNICAL WEAVE FOR PHOTOVOLTAIC MODULESSeptember 2024January 2026Allow1601NoNo
18829147SOLAR TRACKING SYSTEM WITH A MECHANICAL DRIVE MECHANISM USING A FLEXIBLE TRANSMISSION SHAFTSeptember 2024July 2025Allow1011NoNo
18844217METHOD AND SYSTEM FOR EVALUATING CLEANING DEMAND OF PHOTOVOLTAIC PANEL BASED ON ENVIRONMENTAL METEOROLOGICAL INFLUENCESeptember 2024January 2026Allow1700NoNo
18819564MECHANICALLY STACKED SOLAR TRANSMISSIVE CELLS OR MODULESAugust 2024September 2025Allow1330YesNo
18818614SOLAR CELL MODULEAugust 2024February 2026Allow1710NoNo
18819247METHOD FOR MANUFACTURING SILICON BULK THERMOELECTRIC CONVERSION MATERIAL, SILICON BULK THERMOELECTRIC CONVERSION MATERIAL, AND THERMOELECTRIC CONVERSION ELEMENTAugust 2024January 2026Allow1711NoNo
18817266PHOTOVOLTAIC SOLAR CELL MODULE AND MANUFACTURING METHOD THEREOFAugust 2024August 2025Allow1100NoNo
18816575Visually Undistorted Thin Film Electronic DevicesAugust 2024November 2025Allow1510NoNo
18813192METHOD FOR DETERMINING AN OPERATING PARAMETER OF A PV INSTALLATION, PV INSTALLATION HAVING AN INVERTER AND INVERTER FOR SUCH A PV INSTALLATIONAugust 2024July 2025Allow1100YesNo
18809664SOLAR CELL AND PREPARATION METHOD THEREOFAugust 2024January 2026Allow1710NoNo
18839066Mount For Vertical Photovoltaic ModulesAugust 2024April 2025Allow810NoNo
18800800MULTIJUNCTION SOLAR CELLAugust 2024December 2025Allow1610NoNo
18836982ADDITIVELY MANUFACTURABLE AND STRETCHABLE THERMOELECTRIC DEVICESAugust 2024March 2026Allow1911NoNo
18798528SIMPLE BEARING FOR SOLAR TRACKINGAugust 2024January 2026Abandon1810NoNo
18797403Perovskite Material Photovoltaic Device and Method for AssemblyAugust 2024January 2026Allow1710NoNo
18795756SYSTEMS FOR AND METHODS OF POSITIONING SOLAR PANELS IN AN ARRAY OF SOLAR PANELS TO EFFICIENTLY CAPTURE SUNLIGHTAugust 2024July 2025Allow1100NoNo
18792865TOPCon SOLAR CELL AND METHOD FOR MANUFACTURING THE SAMEAugust 2024December 2025Allow1610NoNo
18793358PHOTOVOLTAIC CELLS WITH BYPASS DIODESAugust 2024February 2025Allow601YesNo
18787003HIGH CONCENTRATING PHOTOVOLTAIC SYSTEM WITH PYRAMIDAL MODULESJuly 2024September 2024Allow200YesNo
18785118AUTONOMOUS ELECTRICAL POWER SOURCESJuly 2024February 2026Abandon1910NoNo
18784393SOLAR BATTERY MODULEJuly 2024June 2025Allow1100NoNo
18783108GROUP-IV SOLAR CELL STRUCTURE USING GROUP-IV HETEROSTRUCTURESJuly 2024December 2025Allow1720NoNo
18782943THERMOELECTRIC CONVERSION MATERIAL, COMPOSITION FOR THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION ELEMENT, THERMOELECTRIC CONVERSION MODULE, THERMOELECTRIC CONVERSION SYSTEM, AND METHOD OF MANUFACTURING THERMOELECTRIC CONVERSION MATERIALJuly 2024June 2025Allow1100YesNo
18782244PHOTOVOLTAIC CELL WITH A SPECIFIC ARRANGEMENT OF ENERGY COLLECTORS, AND METHOD FOR PRODUCING SUCH A CELLJuly 2024October 2025Allow1511NoNo
18778561Systems and Methods for Multi-Position Solar Panel ArraysJuly 2024September 2024Allow210YesNo
18777607SOLAR CELL AND PREPARATION METHOD THEREOFJuly 2024March 2026Allow1911NoNo
18730241SOLAR GLASS ASSEMBLYJuly 2024March 2025Allow700YesNo
18728629BACK-CONTACT SOLAR CELL, MANUFACTURING METHOD THEREFOR, AND SOLAR-CELL ASSEMBLYJuly 2024June 2025Allow1100NoNo
18770733PHOTOVOLTAIC FRAME AND PHOTOVOLTAIC MODULEJuly 2024December 2025Allow1710NoNo
18728582THERMOELECTRIC DEVICEJuly 2024December 2025Allow1711NoNo
18770377STACKED III-V MULTI-JUNCTION SOLAR CELLJuly 2024January 2026Allow1820YesNo
18768660SOLAR CELL AND MANUFACTURING METHOD THEREOF, PHOTOVOLTAIC MODULE, AND PHOTOVOLTAIC SYSTEMJuly 2024February 2025Allow2511NoNo
18767107SOLAR PANEL PROTECTIVE CONTAINER APPARATUS AND SYSTEMJuly 2024May 2025Abandon1110YesNo
18765993PASSIVATED CONTACT STRUCTURE AND SOLAR CELL COMPRISING THE SAME, CELL ASSEMBLY, AND PHOTOVOLTAIC SYSTEMJuly 2024January 2025Allow610YesNo
18727153PORTABLE PHOTOVOLTAIC ARRAY GENERATOR SET CONTAINER AND UTILIZATION METHOD THEREOFJuly 2024January 2026Allow1801YesNo
18765184PASSIVATED CONTACT STRUCTURE AND SOLAR CELL COMPRISING THE SAME, CELL ASSEMBLY, AND PHOTOVOLTAIC SYSTEMJuly 2024May 2025Allow1020YesNo
18764306PHOTOVOLTAIC POWER GENERATION DEVICEJuly 2024March 2026Abandon2010NoNo
18764166BATTERY MODULE, MODULE COMBINATION, BATTERY PACK, AND ELECTRIC APPARATUSJuly 2024November 2024Allow510NoNo
18726430SOLAR CELL MODULEJuly 2024February 2026Allow2010NoNo
18763587PHOTOELECTRIC CONVERSION MODULEJuly 2024September 2025Allow1510NoNo
18763492Solar Device Fabrication Limiting Power Conversion LossesJuly 2024September 2025Abandon1511NoNo
18310233HOT MELT COMPOSITION IN THE FORM OF A FILM FOR USE IN THIN FILM PHOTOVOLTAIC MODULESJune 2024March 2024Allow1110YesNo
18725003SOLAR CELL AND METHOD FOR FORMING THE SAMEJune 2024January 2026Allow1920YesNo
18757286SOLAR CELL STRUCTURE, METHOD FOR PREPARING SOLAR CELL, AND MASK PLATEJune 2024March 2026Allow2011NoNo
18756932MULTIJUNCTION SOLAR CELLJune 2024September 2025Allow1510NoNo
18756007SOLAR CELL, METHOD OF MANUFACTURING THE SAME, AND PHOTOVOLTAIC COMPONENTJune 2024September 2025Abandon1421NoNo
18752940High Efficiency, Color Neutral, Semi-transparent Organic Photovoltaics for Energy Harvesting WindowsJune 2024August 2025Allow1420YesNo
18752826SOLAR BATTERY, METHOD FOR PREPARING SAME AND USE THEREOFJune 2024November 2025Allow1611YesNo
18753338HIGH STOW SOLAR TRACKER WITH HAIL PROTECTIONJune 2024November 2025Allow1611NoNo
18746163ALL-PRINTED BIFACIAL CARBON-BASED PEROVSKITE SOLAR MODULE WITH TAILORABLE OPTOELECTRICAL CHARACTERISTICS MADE UNDER AMBIENT AIRJune 2024July 2025Allow1330NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1721.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
187
Examiner Affirmed
135
(72.2%)
Examiner Reversed
52
(27.8%)
Reversal Percentile
26.0%
Lower than average

What This Means

With a 27.8% 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
572
Allowed After Appeal Filing
185
(32.3%)
Not Allowed After Appeal Filing
387
(67.7%)
Filing Benefit Percentile
50.4%
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, 32.3% 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.

Art Unit 1721 - Prosecution Statistics Summary

Executive Summary

Art Unit 1721 is part of Group 1720 in Technology Center 1700. This art unit has examined 11,816 patent applications in our dataset, with an overall allowance rate of 71.2%. Applications typically reach final disposition in approximately 28 months.

Comparative Analysis

Art Unit 1721's allowance rate of 71.2% places it in the 35% percentile among all USPTO art units. This art unit has a below-average allowance rate compared to other art units.

Prosecution Patterns

Applications in Art Unit 1721 receive an average of 1.96 office actions before reaching final disposition (in the 56% percentile). The median prosecution time is 28 months (in the 63% percentile).

Strategic Considerations

When prosecuting applications in this art unit, consider the following:

  • The art unit's allowance rate suggests a more challenging examination environment compared to the USPTO average.
  • With more office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is shorter than average and should be factored into your continuation and client communication strategies.
  • Review individual examiner statistics within this art unit to identify examiners with particularly favorable or challenging prosecution patterns.

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.