USPTO Art Unit 3646 Prosecution Statistics

Art Unit Information

Art Unit: 3646
Group: 3640
Tech Center: 3600
Total Cases: 9,842
Last Active: September 2024

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18910497ZERO-BALANCE PHASE MEASUREMENT CIRCUITOctober 2024December 2024Allow300NoNo
18851353DETECTING AND SUPPRESSING AMBIGUITIES IN SYNTHETIC APERTURE RADAR DATA AND IMAGESSeptember 2024April 2025Allow710YesNo
18795873CALIBRATION OF POWER MONITORS IN MOLTEN SALT REACTORSAugust 2024June 2025Allow1011NoNo
18792690LITHIUM DETECTION TECHNIQUES USING NEUTRONS AND/OR ALPHA PARTICLESAugust 2024February 2025Allow711YesNo
18791042Systems and Methods for Handheld Single Chip Submillimeter RadarsJuly 2024May 2025Allow1011YesNo
18774871Multi-Static Coherent LiDARJuly 2024February 2025Allow700NoNo
18770468ANGLE OF ARRIVAL OF WIRELESS LOCAL AREA NETWORK DEVICES USING A SWITCHED BEAM ANTENNAJuly 2024October 2024Allow300NoNo
18768120SEPARATION OF RARE EARTH ELEMENTS BY MEANS OF PHYSICAL CHEMISTRYJuly 2024April 2025Allow911YesNo
18763158ION COLLIDER FOR NUCLEAR FUSIONJuly 2024February 2025Allow711YesNo
18758284AUTOMATIC LEVELING MAINTENANCE PLATFORM FOR HIGH-TEMPERATURE GAS COOLED REACTORJune 2024January 2025Allow600YesNo
18756832METHOD FOR OPERATING NUCLEAR REACTOR FOR HEAT AND POWER GENERATIONJune 2024June 2025Allow1111NoNo
18754063UWB NLOS SIGNAL RECOGNITION METHOD BASED ON THE FIRST PATH OF CIRJune 2024February 2025Allow810NoNo
18740104Rapid, Automatic Directional Beam Alignment in 5G/6G NetworksJune 2024January 2025Allow710NoNo
18670643LOW-ALTITUDE FREQUENCY DOMAIN ELECTROMAGNETIC DETECTION DEVICE AND ELECTROMAGNETIC DETECTION METHODMay 2024December 2024Allow710NoNo
18664909PASSIVE MULTISPECTRAL SCANNER THAT USES RECURSIVE ADAPTIVE SAMPLINGMay 2024July 2024Allow200NoNo
18663976FISSION PRODUCT EXTRACTION SYSTEM AND METHODS OF USE THEREOFMay 2024June 2025Allow1311NoNo
18659117WAVE SPECTRUM CALCULATION METHOD BASED ON GNSS WAVE MEASURING BUOYMay 2024May 2025Allow1220NoNo
18658993MAGNETIC CONFINEMENT FUSION REACTORMay 2024October 2024Allow510NoNo
18644443Separation of Actinium from an Irradiated Source Material Including ThoriumApril 2024March 2025Allow1100NoNo
18642358SOLID TARGET SYSTEM FOR RADIONUCLIDE PREPARATIONApril 2024June 2024Allow200NoNo
18640934COORDINATED FUELING SYSTEM AND METHOD SATISFYING THOUSAND-SECOND PULSED PLASMA DISCHARGEApril 2024December 2024Allow820NoNo
18632611FUEL SALT SHIPPING SYSTEMApril 2024May 2025Allow1421YesNo
17619120ECCS WITH SELF-CLEANING FILTER SYSTEMApril 2024September 2024Allow3320NoNo
18625677SYSTEMS AND METHODS FOR ENABLING AND UTILIZING RADAR CAPABILITY ON A WIRELESS COMMUNICATIONApril 2024February 2025Allow1100NoNo
18623473COMPACT RADAR SYSTEMApril 2024April 2025Allow1310NoNo
18613264FUSION REACTORMarch 2024June 2025Abandon1501NoNo
18607963MISSILE GUIDANCE SYSTEMMarch 2024March 2025Allow1210NoNo
18691092METHOD FOR OPERATING WIDE-BAND AESAMarch 2024September 2024Allow610NoNo
18600271FUSION REACTOR HAVING NESTED PEBBLE BED BLANKETMarch 2024May 2024Allow200YesNo
18598596SYSTEM AND METHOD FOR RADARMarch 2024December 2024Allow910NoNo
18687320LINE-OF-SIGHT PAYLOAD DELIVERY SYSTEMFebruary 2024February 2025Abandon1120NoNo
18583272ANGLE OF ARRIVAL OF WIRELESS LOCAL AREA NETWORK DEVICES USING A SWITCHED BEAM ANTENNAFebruary 2024April 2024Allow200NoNo
18442392DETECTION AND ESTIMATION OF SPINFebruary 2024July 2024Allow510YesNo
18430506TRAJECTORY DETERMINATION SYSTEM USING POSITIONAL SENSING TO DETERMINE THE MOVEMENT OF PEOPLE OR OBJECTSFebruary 2024April 2025Allow1410NoNo
18422434Nano-Engineered Materials for LENRJanuary 2024March 2025Abandon1401NoNo
18421173METHOD AND APPARATUS FOR DETERMINING THE ANGLE OF DEPARTUREJanuary 2024January 2025Allow1100NoNo
18416483ANGLE OF ARRIVAL OF PERSONAL AREA NETWORK DEVICES USING A SWITCHED BEAM ANTENNAJanuary 2024July 2024Allow610NoNo
18401172METHOD OF PREPARING A FUSION REACTOR DIVERTOR COMPONENTDecember 2023August 2024Allow711NoNo
18401225METHOD OF CONSTRUCTING A NUCLEAR REACTOR HAVING REACTOR CORE AND CONTROL ELEMENTS SUPPORTED BY REACTOR VESSEL HEADDecember 2023April 2025Allow1510YesNo
18393892ROTATIONAL WIRELESS COMMUNICATION SYSTEMDecember 2023June 2025Allow1810YesNo
18536193PASSIVE CHEMICAL INJECTION SYSTEM FOR CONTROLLING A NUCLEAR REACTION BY DELIVERING A NEUTRON-ABSORBING CHEMICAL INTO A CONTAINMENT VESSELDecember 2023June 2025Allow1810YesNo
18531158ACTIVE SPIN CONTROLDecember 2023October 2024Allow1010YesNo
18515301RADAR DEVICE, METHOD OF DETECTING FAILURE OF RADAR DEVICE, AND METHOD OF OPERATING RADAR DEVICENovember 2023March 2025Allow1510NoNo
18562305Stochastic Mantle for Magnetic Fusion DevicesNovember 2023April 2025Allow1720YesNo
18510832METHOD, SYSTEM, AND INTELLIGENT TERMINAL FOR ONE-BIT QUANTIZATION DIRECTION OF ARRIVAL ESTIMATIONNovember 2023May 2024Allow610NoNo
18507246Core of Fast Reactor and Method of Operating Fast ReactorNovember 2023May 2025Abandon1801NoNo
18503060TRAJECTORY DETERMINATION SYSTEM USING POSITIONAL SENSING TO DETERMINE THE MOVEMENT OF PEOPLE OR OBJECTSNovember 2023February 2024Allow300NoNo
18503069TRAJECTORY DETERMINATION SYSTEM USING POSITIONAL SENSING TO DETERMINE THE MOVEMENT OF PEOPLE OR OBJECTSNovember 2023January 2024Allow200NoNo
18386793HIGH POWER GRID GLOBAL NAVIGATION SATELLITE SYSTEMS CORRECTIONSNovember 2023December 2024Allow1400NoNo
18386378REACTOR DESIGN WITH CONTROLLED THERMAL NEUTRON FLUX FOR ENHANCED NEUTRON ACTIVATION POTENTIALNovember 2023October 2024Allow1200NoNo
18386031Using Additive Manufacturing In Creating A Nuclear Fuel Structure With A Shape Corresponding To A Mathematically-Based Periodic Solid Having A Triply Periodic Minimal SurfaceNovember 2023June 2025Allow1910NoNo
18383524AIRBORNE POSITIONING METHOD IN AVIATION NAVIGATION NETWORK BASED ON MULTI-SOURCE INFORMATION FUSIONOctober 2023May 2024Allow710NoNo
18491708RADIATION ABSORBER DEVICEOctober 2023July 2024Allow911YesNo
18381453METHOD OF SPARSE ARRAY ORIENTED APPROACH FOR DOA ESTIMATION OF GRATING LOBE TARGET FILTERINGOctober 2023March 2024Allow510NoNo
18485608GESTURE-BASED LOAD CONTROL VIA WEARABLE DEVICESOctober 2023May 2025Allow1910NoNo
18485439METHOD OF MAGNETICALLY REMOVING AN IRRADIATED CAPSULE FROM A BURNABLE ABSORBER RODLETOctober 2023August 2024Allow1001YesNo
18378680FUNCTIONALLY GRADED LATTICE CERMET FUEL STRUCTURE WITH SHAPE CORRESPONDING TO A MATHEMATICALLY-BASED PERIODIC SOLID, PARTICULARLY FOR NUCLEAR THERMAL PROPULSION APPLICATIONSOctober 2023August 2024Allow1010NoNo
18378691FUNCTIONALLY GRADED LATTICE CERMET FUEL STRUCTURE WITH SHAPE CORRESPONDING TO A MATHEMATICALLY-BASED PERIODIC SOLID, PARTICULARLY FOR NUCLEAR THERMAL PROPULSION APPLICATIONSOctober 2023August 2024Allow1010NoNo
18484009REACTOR FOR PRODUCING A NUCLEAR FUSION REACTIONOctober 2023December 2024Allow1420NoNo
18481740DETECTION APPARATUS COMPRISING A RESONANT ELECTRICAL CIRCUIT LOCATED WITHIN A NUCLEAR FUEL RODOctober 2023October 2024Allow1301YesNo
18477909SCANNERS, TARGETS, AND METHODS FOR SURVEYINGSeptember 2023November 2024Abandon1310NoNo
18374780RECONFIGURABLE GPR DEVICESeptember 2023November 2024Allow1410NoNo
18475671TRAFFIC RADAR SYSTEM WITH PATROL VEHICLE SPEED DETECTIONSeptember 2023February 2024Allow521YesNo
18474140Electronic Devices with Angular Location Detection CapabilitiesSeptember 2023May 2025Allow2030NoNo
18369260NEUTRON ACTIVATOR, NEUTRON ACTIVATION SYSTEM COMPRISING SUCH NEUTRON ACTIVATOR AND METHOD FOR NEUTRON ACTIVATION IMPLEMENTING SUCH NEUTRON ACTIVATORSeptember 2023November 2024Abandon1410NoNo
18244190ACTIVE REFLECTOR WITH OSCILLATION INHIBITIONSeptember 2023December 2024Allow1500NoNo
18463315GNSS EMERGENCY MONITORING ERROR SUPPRESSION METHOD FOR ALPINE CANYON COMPLEX ENVIRONMENTSeptember 2023April 2024Allow720NoNo
18243479PHASED-ARRAY RADIO FREQUENCY RECEIVER AND METHODS OF OPERATIONSeptember 2023December 2024Allow1500NoNo
18458849Low-Complexity Beam Alignment by Directional Phase in 5G and 6GAugust 2023April 2024Allow721NoNo
18457957ENHANCED REAL-TIME KINEMATIC (RTK)August 2023June 2025Allow2130YesNo
18235401SYSTEMS AND METHODS FOR INTERPOLATED VIRTUAL APERTURE RADAR TRACKINGAugust 2023November 2024Allow1500NoNo
18449445MOLTEN SALT REACTOR CONTAINMENTAugust 2023March 2025Allow1931YesNo
18448734Training Quantum Evolutions Using Sublogical ControlsAugust 2023August 2024Allow1200NoNo
18365823TRAJECTORY DETERMINATION SYSTEM USING POSITIONAL SENSING TO DETERMINE THE MOVEMENT OF PEOPLE OR OBJECTSAugust 2023October 2023Allow200NoNo
18229582Flexible Driver Laser for Inertial Fusion EnergyAugust 2023April 2024Allow800NoNo
18229261METHOD OF AND APPARATUS FOR PLASMA REACTIONAugust 2023April 2025Abandon2001NoNo
18224023ESTIMATING SOIL PROPERTIES WITHIN A FIELD USING HYPERSPECTRAL REMOTE SENSINGJuly 2023March 2025Allow2010NoNo
18350970Nuclear Reactor and Operation Method for Nuclear ReactorJuly 2023March 2025Abandon2011NoNo
18219216LIGHT WATER REACTOR FUEL ASSEMBLY, LIGHT WATER REACTOR CORE AND MOX FUEL ASSEMBLY PRODUCTION METHODJuly 2023August 2024Allow1411NoNo
18343715POWER CONVERSION SYSTEMJune 2023May 2024Allow1000YesNo
18213584Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Device, And Lighting DeviceJune 2023January 2024Allow700NoNo
18340459FUEL CELL LIFTING SYSTEM FOR NUCLEAR REACTORSJune 2023March 2025Allow2011YesNo
18212761Systems and Methods for Noninvasive Detection of Impermissible ObjectsJune 2023May 2025Allow2310YesNo
18339540METHOD OF AND APPARATUS FOR PLASMA REACTIONJune 2023April 2025Abandon2101NoNo
18210910SYSTEM AND METHOD FOR EFFICIENT DIRECTIONAL DISCOVERY OF COMMUNICATIONS TERMINALS VIA BEAM INTERLEAVINGJune 2023June 2025Allow2400NoNo
18210437THORIUM-BASED FUEL DESIGN FOR PRESSURIZED HEAVY WATER REACTORSJune 2023May 2024Allow1111YesNo
18210133ACCELERATOR-DRIVEN NEUTRON ACTIVATOR FOR BRACHYTHERAPYJune 2023November 2024Abandon1710NoNo
18266465DIRECTION DETECTION DEVICE, ACQUISITION METHOD OF PHASE DIFFERENCE TABLE, DIRECTION DETECTION METHOD, AND DIRECTION DETECTION PROGRAMJune 2023June 2025Allow2400NoNo
18332369Method for Finding Signal Direction Using Modal AntennaJune 2023May 2024Allow1110NoNo
18256203RECONFIGURABLE INTELLIGENT SURFACE (RIS)-ASSISTED TIMING ERROR CALIBRATION FOR MOBILE DEVICE POSITIONINGJune 2023June 2025Allow2400NoNo
18206302CARBIDE-BASED FUEL ASSEMBLY FOR THERMAL PROPULSION APPLICATIONSJune 2023November 2024Allow1710YesNo
18329335HEAT PIPE NETWORKS FOR HEAT REMOVAL, SUCH AS HEAT REMOVAL FROM NUCLEAR REACTORS, AND ASSOCIATED SYSTEMS AND METHODSJune 2023September 2024Allow1511YesNo
18205707STRATOSPHERIC POSITION, NAVIGATION, AND TIMING SYSTEMJune 2023October 2024Allow1610NoNo
18328256MULTISTATIC RADAR MEASUREMENTJune 2023August 2024Allow1510NoNo
18328254TRAFFIC RADAR SYSTEM WITH PATROL VEHICLE SPEED DETECTIONJune 2023December 2023Allow700NoNo
18204517CARBIDE-BASED FUEL ASSEMBLY FOR THERMAL PROPULSION APPLICATIONSJune 2023August 2024Allow1420NoNo
18322745STRUCTURE AND METHOD FOR PROVIDING LINE END EXTENSIONS FOR FIN-TYPE ACTIVE REGIONSMay 2023October 2024Allow1600NoNo
18253536Breeder Blanket For Nuclear Fusion ReactorMay 2023September 2023Allow400YesNo
18198350Uplink Signaling and Receive Beamforming for Dual-Function Radar CommunicationsMay 2023December 2024Abandon1910NoNo
18318391TECHNIQUES FOR AUTOMATED MAINTENANCE OF A TOKAMAK AND RELATED SYSTEMS AND METHODSMay 2023June 2025Allow2501NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3646.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
323
Examiner Affirmed
165
(51.1%)
Examiner Reversed
158
(48.9%)
Reversal Percentile
92.8%
Higher than average

What This Means

With a 48.9% 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
671
Allowed After Appeal Filing
213
(31.7%)
Not Allowed After Appeal Filing
458
(68.3%)
Filing Benefit Percentile
44.4%
Lower 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, 31.7% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Art Unit 3646 - Prosecution Statistics Summary

Executive Summary

Art Unit 3646 is part of Group 3640 in Technology Center 3600. This art unit has examined 9,842 patent applications in our dataset, with an overall allowance rate of 76.8%. Applications typically reach final disposition in approximately 33 months.

Comparative Analysis

Art Unit 3646's allowance rate of 76.8% places it in the 46% 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 3646 receive an average of 1.84 office actions before reaching final disposition (in the 51% percentile). The median prosecution time is 33 months (in the 31% 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 longer 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.