USPTO Art Unit 2844 Prosecution Statistics

Art Unit Information

Art Unit: 2844
Group: 2840
Tech Center: 2800
Total Cases: 22,740
Last Active: September 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19329604APPARATUS FOR LOW CNOT COUNT QUANTUM POINT-DOUBLING CIRCUITSSeptember 2025December 2025Allow310NoNo
19243208LED DRIVE SYSTEM, LED DRIVE METHOD AND LED LAMP THEREOFJune 2025November 2025Allow510NoNo
19242181CONTROLLING AND POWERING MULTIPLE CHIPSJune 2025January 2026Allow710NoNo
19240949Mixed-Halide Perovskite Spectra GeneratorsJune 2025December 2025Allow601NoNo
19208847ADAPTIVE INTELLIGENT DRIVING CIRCUIT AND METHOD FOR LED LAMPSMay 2025September 2025Allow410NoNo
19207897REPLACEABLE BULB LAMP LED STRING DETECTIVE METHOD AND REPLACEABLE BULB LAMP LED STRING DEVICEMay 2025August 2025Allow410YesNo
19204529Sequential Motion-Responsive Modular Lighting System with Directional Communication and Low-Power OperationMay 2025August 2025Allow310NoNo
19183965LED Lighting Circuit without Driving Power Supply and LED Light StringApril 2025September 2025Allow510NoNo
19178117LIGHT EMITTING DIODE AND LED DRIVE APPARATUSApril 2025March 2026Allow1110NoNo
19173491High-Fidelity Lunar Phase Mechanism for Clocks and WatchesApril 2025June 2025Allow200NoNo
19117503VOLUMETRIC PLASMAS, AND SYSTEMS AND METHODS FOR GENERATION AND USE THEREOFApril 2025January 2026Allow900NoNo
19083380MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATIONMarch 2025August 2025Allow510NoNo
19079178LUMINAIRE SAFETY SYSTEMMarch 2025July 2025Allow410NoNo
19072918MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATIONMarch 2025July 2025Allow510NoNo
19072952MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATIONMarch 2025July 2025Allow510NoNo
19072979MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATIONMarch 2025August 2025Allow510NoNo
19059108NEUTRAL BEAM INJECTION POWER FEEDBACK CONTROL METHODFebruary 2025December 2025Allow1020YesNo
19056673Overcurrent and Overload Protection Circuit for LED Light StringFebruary 2025April 2025Allow200NoNo
19052905Resistor Mapping for Device ProfilesFebruary 2025July 2025Allow510YesNo
19051783CALIBRATABLE LED SIMULATED DAYLIGHT SOURCEFebruary 2025November 2025Allow910NoNo
19047022Apparatus for Displaying TimeFebruary 2025August 2025Allow610YesNo
19035308CONTROLLING AND POWERING MULTIPLE CHIPSJanuary 2025May 2025Allow300NoNo
19023489LED DRIVE SYSTEM AND LED LAMP THEREOFJanuary 2025May 2025Allow400NoNo
19020713IDENTIFYING, RECORDING, ENCODING, AND REPRODUCING ELECTROMAGNETIC RADIATIONJanuary 2025December 2025Allow1120YesYes
19015475Color mixing circuit, method and electronic device for light sourcesJanuary 2025July 2025Allow610NoNo
19015577AMBIENT LAMP APPARATUS AND LIGHTING-EFFECT LAYER COORDINATED PLAYBACK METHOD AND DEVICE, MEDIUMJanuary 2025May 2025Allow400NoNo
19003376PLANAR COIL STELLARATOR INCLUDING REMOVABLE FIELD SHAPING UNITSDecember 2024June 2025Allow610YesNo
18878092POWER CONSUMPTION CONTROL CIRCUIT, CHIP AND ELECTRONIC DEVICEDecember 2024June 2025Allow500NoNo
18984779SPLICING LAMP, DETECTION EXECUTING METHOD, AND DETECTION DRIVING METHODDecember 2024June 2025Allow610NoNo
18711701VEHICLE HEADLIGHTDecember 2024March 2026Allow2200NoNo
18871972POWER SUPPLY FOR POWERING A LOAD, METHOD FOR POWERING THE LOADDecember 2024March 2026Allow1500NoNo
18871502LED LAMP ARRANGEMENT WITH SVM REDUCTION CIRCUITDecember 2024February 2026Allow1400NoNo
18969221LED Light Bulb with Adjustable Wattage and BrightnessDecember 2024May 2025Abandon610YesNo
18965150LED STRING LIGHT CONTROLLING METHOD USING POWER LINE COMMUNICATION AND LED STRING LIGHT USING POWER LINE COMMUNICATIONDecember 2024February 2025Allow300NoNo
18963463LIGHTING DEVICE WITH ADAPTIVE OUTPUT POWER CONTROL FUNCTIONNovember 2024March 2026Allow1500NoNo
18962106LIGHT EMITTING ELEMENT DRIVER WITH SHUNT DIMMING FUNCTION AND METHOD THEREOFNovember 2024February 2026Allow1500NoNo
18961040BIDIRECTIONAL COLORFUL LIGHT TRIGGERED BY POWER-LINE PULSE SIGNALS CONNECTED IN SERIES AND PARALLELNovember 2024February 2026Allow1500NoNo
18956645DRIVER CIRCUIT FOR SUPPLYING A CONSTANT CURRENT TO AN LED ARRANGEMENTNovember 2024February 2026Allow1500NoNo
18957228PLANAR COIL STELLARATORNovember 2024March 2025Allow410NoNo
18954702SEMICONDUCTOR DEVICE AND SEMICONDUCTOR SYSTEMNovember 2024March 2026Allow1600NoNo
18942372HIGH WATTAGE POWER OVER ETHERNET ILLUMINATION FIXTURESNovember 2024October 2025Allow1120YesNo
18940244ACTIVE GATE DRIVERNovember 2024March 2026Allow1600NoNo
18863339LEAF-FILTERED SUNLIGHT SIMULATION CONTROL DEVICENovember 2024March 2025Allow400NoNo
18937411OLED PRINT HEADNovember 2024March 2026Allow1600NoNo
18937515ILLUMINATION SYSTEM AND METHOD THAT PRESENTS A NATURAL SHOW TO EMULATE DAYLIGHT CONDITIONS WITH SMOOTHING DIMCURVE MODIFICATION THEREOFNovember 2024March 2026Allow1600NoNo
18934269LIGHTING SYSTEM WITH ILLUMINATION RANGE ADJUSTMENT FUNCTION BASED ON RADIO FREQUENCY SIGNAL CONTROLNovember 2024February 2026Allow1600NoNo
18932267EMULATED WHITE LED IN A COLOR-CHANGING LIGHTING FIXTUREOctober 2024August 2025Allow1020NoNo
18928608CONTROL SYSTEM FOR VEHICLE, CONTROL METHOD FOR VEHICLE, AND NON-TRANSITORY STORAGE MEDIUMOctober 2024February 2026Allow1600NoNo
18927408AMBIENT LIGHTING DEVICE AND LIGHTING CONTROL METHOD THEREOF, AND STORAGE MEDIUMOctober 2024February 2025Allow400NoNo
18927435AMBIENT LAMP AND INSTRUCTION TRANSMISSION/APPLICATION METHOD THEREOF, AND STORAGE MEDIUMOctober 2024February 2025Allow300NoNo
18925387SUBSTRATE PROCESSING SYSTEM AND METHOD FOR INSTALLING EDGE RINGOctober 2024January 2025Allow300NoNo
18924866PLASMA GENERATING APPARATUS AND METHOD FOR OPERATING SAMEOctober 2024March 2026Allow1600NoNo
18924288ORGANIC-LIGHT EMITTING DIODEOctober 2024February 2026Allow1600NoNo
18918133ANTENNA MODULEOctober 2024February 2026Allow1600NoNo
18711397LIGHTING APPARATUS, DRIVING METHOD OF LIGHTING APPARATUS, AND VEHICLE LAMPOctober 2024March 2026Allow2200NoNo
18907614PLASMA IGNITION DETECTION DEVICE FOR CONNECTION TO AN IMPEDANCE MATCHING CIRCUIT FOR A PLASMA GENERATING SYSTEMOctober 2024February 2025Allow400YesNo
18904870APPARATUS FOR PROCESSING SUBSTRATEOctober 2024February 2026Allow1700NoNo
18853419FREIGHT CONTAINER SIDE-MOUNTED ANTENNAOctober 2024February 2026Allow1600NoNo
18904538LIGHTING LOAD CLASSIFICATION AND DIMMER CONFIGURATION BASED THEREONOctober 2024March 2026Allow1700NoNo
18903729LOW-VOLTAGE LIGHTING SYSTEMS AND METHODSOctober 2024February 2026Allow1600NoNo
18852518RECONFIGURABLE INTELLIGENT SURFACE, RIS, WITH SENSING CAPABILITIES AND METHOD FOR OPERATING THE SAMESeptember 2024December 2025Allow1500NoNo
18900730LUMINAIRE CONTROLLERSeptember 2024February 2026Allow1600NoNo
18898804Case Cap Retainer for a Watch Having a Case CapSeptember 2024June 2025Allow910NoNo
18899592LED LAMP, INTEGRATED CIRCUIT AND POWER SUPPLY MODULE THEREOFSeptember 2024February 2026Allow1600NoNo
18897135ANTENNA STRUCTURE AND ANTENNA ARRAY STRUCTURESeptember 2024February 2026Allow1600NoNo
18896013CONTROL METHOD, DEVICE, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUMSeptember 2024January 2025Allow410NoNo
18896040SEGMENTATION METHOD, DEVICE, LAMP, AND COMPUTER-READABLE STORAGE MEDIUMSeptember 2024October 2025Allow1240NoNo
18896064LAMP AND CONTROLLER THEREOF, AND LIGHTING EFFECT COORDINATED PLAYBACK METHOD AND DEVICESeptember 2024February 2025Allow500NoNo
18896144MOBILE DEVICE SUPPORTING WIDEBAND OPERATIONSeptember 2024January 2026Allow1600NoNo
18895491WAFER PLACEMENT TABLESeptember 2024March 2026Allow1710NoNo
18895335DISPLAY APPARATUSSeptember 2024February 2026Allow1600NoNo
18894006ELECTRODELESS DICHROMATIC FLICKERING BULB AND LIGHT-EMITTING-DIODE LIGHT STRINGSeptember 2024December 2024Allow310NoNo
18889440PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHODSeptember 2024February 2026Allow1600NoNo
18848279SIGNAL GENERATOR MODULE FOR DIMMING OF A LUMINAIRESeptember 2024February 2026Allow1700NoNo
18888328VISUAL FRONT ALERT SYSTEMSeptember 2024October 2025Allow1330YesNo
18889351DIMMING AND COLOR TEMPERATURE ADJUSTING CONTROL DEVICESeptember 2024January 2026Allow1600NoNo
18887929CUFF FOR WATCHSeptember 2024June 2025Allow920NoNo
18886285OPTIMIZED POWER MANAGEMENT IN RGB DRIVERS WITH MULTIPLEXINGSeptember 2024January 2026Allow1600NoNo
18883790ANTENNA STRUCTURESeptember 2024February 2026Allow1700NoNo
18830612LAMP CONTROL SIGNAL CONVERSION AND TRANSMISSION METHOD AND LAMP SYSTEM USING THE SAMESeptember 2024March 2026Allow1800NoNo
18830798LOAD CONTROL DEVICE FOR CONTROLLING A DRIVER FOR A LIGHTING LOADSeptember 2024March 2026Allow1800NoNo
18830602Non-mobile indoor light-emitting diode (LED) emergency light in coordination with long range (LoRa) gatewaySeptember 2024February 2026Allow1700NoNo
18830640PLASMA PROCESSING APPARATUS, ANALYSIS APPARATUS, AND STORAGE MEDIUMSeptember 2024January 2026Allow1700NoNo
18829851DUAL-BAND DIPOLE ANTENNA AND ELECTRONIC DEVICESeptember 2024December 2025Allow1500NoNo
18830519RF REFERENCE MEASURING CIRCUIT FOR A DIRECT DRIVE SYSTEM SUPPLYING POWER TO GENERATE PLASMA IN A SUBSTRATE PROCESSING SYSTEMSeptember 2024January 2026Allow1600NoNo
18828728POWER SUPPLY CIRCUIT, RELATED SYSTEM AND METHODSeptember 2024January 2026Allow1600NoNo
18829001Color Temperature Fusion Lighting ApparatusSeptember 2024January 2026Allow1700NoNo
18828962POWER DELIVERY TO A PLASMA VIA INDUCTIVE COUPLINGSeptember 2024January 2026Allow1700NoNo
18826440CENTRALIZED CONTROL POWER SUPPLY AND SYSTEMSeptember 2024March 2025Allow610NoNo
18824128ALUMINA CERAMIC MEMBER, METHOD FOR MANUFACTURING ALUMINA CERAMIC MEMBER, COMPONENT FOR SEMICONDUCTOR MANUFACTURING APPARATUS, AND SUBSTRATE PROCESSING APPARATUSSeptember 2024February 2026Allow1800NoNo
18820762ELECTROMAGNETIC WAVE SUPPLY MECHANISM AND PLASMA PROCESSING APPARATUSAugust 2024February 2026Allow1700NoNo
18818022APPROACH TO INCREASE LINAC OPERATING RANGE OF LINEAR ACCELERATORAugust 2024December 2025Allow1600NoNo
18817852FAILSAFE INPUT-OUTPUT CIRCUITAugust 2024January 2026Allow1700NoNo
18817647ANTENNA, WIRELESS COMMUNICATION DEVICE, AND ANTENNA FORMING METHODAugust 2024February 2026Allow1801YesNo
18841701ANTENNA DEVICEAugust 2024December 2025Allow1600YesNo
18814908CROSSTALK MITIGATION FOR LIGHTING CONTROLAugust 2024January 2025Allow520YesNo
18813395VEHICLE PERIPHERY MONITORING SYSTEMAugust 2024January 2026Allow1600NoNo
18840937DUAL TAPPED L2 SUPPLY CONFIGURATION FOR TLED LAMPSAugust 2024February 2026Allow1700NoNo
18812181LOAD CONTROL DEVICE FOR A LIGHT-EMITTING DIODE LIGHT SOURCEAugust 2024December 2025Allow1500NoNo
18811360LED COLOR-CHANGING LAMP AND POWER SUPPLY CIRCUIT THEREOFAugust 2024December 2024Allow300NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2844.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
144
Examiner Affirmed
83
(57.6%)
Examiner Reversed
61
(42.4%)
Reversal Percentile
85.8%
Higher than average

What This Means

With a 42.4% 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
571
Allowed After Appeal Filing
207
(36.3%)
Not Allowed After Appeal Filing
364
(63.7%)
Filing Benefit Percentile
72.2%
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, 36.3% 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 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.

Art Unit 2844 - Prosecution Statistics Summary

Executive Summary

Art Unit 2844 is part of Group 2840 in Technology Center 2800. This art unit has examined 22,740 patent applications in our dataset, with an overall allowance rate of 88.1%. Applications typically reach final disposition in approximately 18 months.

Comparative Analysis

Art Unit 2844's allowance rate of 88.1% places it in the 85% percentile among all USPTO art units. This art unit has a significantly higher allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 2844 receive an average of 1.24 office actions before reaching final disposition (in the 9% percentile). The median prosecution time is 18 months (in the 97% percentile).

Strategic Considerations

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

  • The art unit's allowance rate suggests a more favorable examination environment compared to the USPTO average.
  • With fewer 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.