USPTO Art Unit 3648 Prosecution Statistics

Art Unit Information

Art Unit: 3648
Group: 3640
Tech Center: 3600
Total Cases: 8,706
Last Active: September 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19334053UNMANNED VEHICLE RECOGNITION AND THREAT MANAGEMENTSeptember 2025January 2026Allow410NoNo
19314740B-SCAN NORMALIZATION FOR NON-DESTRUCTIVE TESTINGAugust 2025November 2025Allow300YesNo
19306223RADAR SPEED DETECTION SYSTEM AND METHODAugust 2025February 2026Allow610NoNo
19295344DATA PACKET NETWORK FOR IN-VEHICLE SPEED ENFORCEMENT SYSTEMAugust 2025February 2026Allow610NoNo
19268204RF-BASED MATERIAL IDENTIFICATION SYSTEMS AND METHODSJuly 2025December 2025Allow510NoNo
19226444Personnel Safety Sensing SystemJune 2025August 2025Allow210NoNo
19221267SENSOR SYSTEMMay 2025December 2025Allow610YesNo
19213992NAVIGATION AND POSITIONING SYSTEM IN GPS-DENIED ENVIRONMENTS USING QUANTUM-INSPIRED AND ADAPTIVE SENSOR FRAMEWORKSMay 2025August 2025Allow310NoNo
19207624AUTOMATIC HAIL IDENTIFICATION METHOD BASED ON RADAR IMAGE SPATIAL MAPPINGMay 2025July 2025Allow210NoNo
19200159AUTOMATED DEPTH ESTIMATION FOR NON-DESTRUCTIVE TESTINGMay 2025October 2025Allow510YesNo
19196991AIRCRAFT TILT APPARATUS INCLUDING VARIABLE COOLING AIR INLETMay 2025October 2025Allow610YesNo
19184243WIRELESS DEVICES, SYSTEMS AND METHODS FOR OBJECT TRACKINGApril 2025June 2025Allow210YesNo
19171082DESIGN METHOD OF A TRUST-REGION SPACEBORNE DUAL-BASELINE INTERFEROMETRIC SAR SYSTEMApril 2025June 2025Allow300YesNo
19087326DETERMINING AN ATTENUATION ENVIRONMENT OF A SATELLITE COMMUNICATION TERMINALMarch 2025October 2025Allow710NoNo
19080723SYSTEM AND METHOD FOR DETERMINING CONTENT UTILIZING EXTERNALLY MOUNTED CONTAINER MONITORING SYSTEMMarch 2025June 2025Allow310YesNo
19075343Methods for Sensing Doppler ShiftsMarch 2025May 2025Allow200NoNo
19070906MILLIMETER WAVE DETECTOR ARRANGEMENTMarch 2025December 2025Allow910NoNo
19105874Radio Locating System, Transponder and Method for Operating the Radio Locating SystemFebruary 2025March 2026Allow1300NoNo
19060453MILLIMETER WAVELENGTH CAMERA ARRANGEMENTFebruary 2025October 2025Allow810NoNo
19056637DIRECTION-FINDING DEVICE BASED ON COUPLED AND DETUNED SPOOF LOCALIZED SURFACE PLASMONSFebruary 2025July 2025Allow510NoNo
19052884SIDE LOBE BLOCKING APPARATUS AND METHODFebruary 2025August 2025Allow610NoNo
19049237ONE-BIT QUANTIZATION BASED TARGET TRACKING METHOD, DEVICE, TERMINAL, AND STORAGE MEDIUMFebruary 2025April 2025Allow200NoNo
18998732VEHICLE FRONT RADAR INTEGRATIONJanuary 2025September 2025Allow810NoNo
19033208SYSTEM FOR CENTRALIZED PROCESSING OF LOOSELY SYNCHRONIZED RADARSJanuary 2025March 2025Allow200NoNo
18997365ELECTRICALLY POWERED PROPELLER SYSTEMS INCLUDING AN EXHAUST SYSTEM FOR BATTERY THERMAL MANAGEMENTJanuary 2025November 2025Allow1010NoNo
19027319Exclusive Delivery of Content Within Geographic AreasJanuary 2025February 2026Allow1320NoNo
19027161Exclusive Delivery of Content Within Geographic AreasJanuary 2025February 2026Allow1320NoNo
18996516HYBRID SENSOR HEAD FOR SURFACE INSPECTION AND METHOD OF USEJanuary 2025June 2025Allow500NoNo
19028658APPARATUSES, SYSTEMS, AND METHODS FOR REAL-TIME SIGNAL DETECTION AND CLASSIFICATIONJanuary 2025April 2025Allow300NoNo
19022315METHOD OF SPACE TRANSPORTATION USING A DISTRIBUTED NETWORK OF SPACE TUGSJanuary 2025February 2026Allow1310NoNo
19016983AIRCRAFT PROPULSION SYSTEM INCLUDING PUMP GEAR DRIVEN BY PLANETARY GEARBOX ASSEMBLYJanuary 2025July 2025Allow610YesNo
19014981HIGH VOLTAGE JUNCTION BOX FOR A BATTERY PACKJanuary 2025August 2025Allow810YesNo
19004293WIRELESS SENSING FOR IN-VEHICLE CHILD PRESENCE DETECTIONDecember 2024February 2025Allow200NoNo
18708623Radar System, Detection Result Display Method, and Radar DeviceDecember 2024August 2025Allow1610NoNo
18991810EFFICIENT SYNTHESIS METHOD FOR RADIATION PATTERN OF CONFORMAL ARRAY ANTENNADecember 2024April 2025Allow400NoNo
18989418SYSTEMS AND METHODS FOR OIL MANAGEMENT IN GEARBOXES FOR EVTOL AIRCRAFTDecember 2024May 2025Allow510YesNo
18991311METHOD FOR FAST AUTOMATIC CALIBRATION OF PHASED ARRAY BASED ON RESIDUAL NEURAL NETWORKDecember 2024March 2025Allow200YesNo
18988811BEIDOU SATELLITE EPHEMERIS PREDICTION METHOD AND SYSTEM BASED ON WATER-WAVE PARALLEL NETWORKDecember 2024May 2025Allow510NoNo
18984635DUAL ROUND TRIP TIME MITIGATION FOR WIRELESS LOCAL AREA NETWORK DEVICESDecember 2024February 2025Allow200NoNo
18984945SUPPRESSION METHOD FOR MULTIPATH SIGNAL OF IMAGE MODE BASED ON CORRELATION PEAKS OF SATELLITE BASEBAND SIGNALDecember 2024February 2025Allow200NoNo
18976272RF FRONT-END MODULE FOR MILLIMETER-WAVE RADARDecember 2024August 2025Allow800NoNo
18976291METHODS FOR PHASED ARRAY CALIBRATION BASED ON CNN-LSTM USING POWER MEASUREMENTDecember 2024April 2025Allow410NoNo
18973147Anti-jamming processing architecture based on dual-component fusion application of satellite navigation signalDecember 2024July 2025Allow820YesNo
18967688RADAR AIDED VIDEO TRACKINGDecember 2024October 2025Allow1010NoNo
18962937AZIMUTH AMBIGUITY SUPPRESSION METHOD FOR SPACEBORNE SAR IN SPATIALLY NON-UNIFORM SAMPLINGNovember 2024February 2025Allow300YesNo
18961230METHOD FOR DETECTING AND TRACKING LOW-OBSERVABLE TARGET WITH BOOST-TO-GLIDE TRAJECTORY UNDER CONDITION OF AMBIGUOUS SLANT RANGENovember 2024January 2025Allow200NoNo
18961160METHOD FOR SUPPRESSING AZIMUTH AMBIGUITY OF MULTI-CHANNEL SAR SYSTEMS BASED ON CHANNEL CANCELLATIONNovember 2024February 2025Allow200YesNo
18868884ON-DEMAND SENSING OF DYNAMIC SENSING AREANovember 2024May 2025Allow610YesNo
18951541SYSTEM AND METHOD FOR PROVIDING LOCATION-BASED POSITIONING AND NAVIGATION IN GPS-DENIED ENVIRONMENTSNovember 2024April 2025Allow510NoNo
18951244GEO-LOCATING OF WIRELESS DEVICES USING SQUARED RESIDUALS FROM ROUND TRIP TIME AND ANGLE OF ARRIVAL VECTORSNovember 2024January 2025Allow200NoNo
18943678RADIOMETER AND RADIOMETER-BASED SOIL MOISTURE DETERMINATION METHODNovember 2024February 2025Allow400NoNo
18940840METHOD AND SYSTEM FOR EVALUATING POST-EARTHQUAKE DAMAGE OF BUILDING GROUPS BASED ON INSARNovember 2024April 2025Allow500NoNo
18937794CONTINUOUS-WAVE RADAR SYSTEM FOR DETECTING FERROUS AND NON-FERROUS METALS IN SALTWATER ENVIRONMENTSNovember 2024December 2024Allow100NoNo
18936682GEO-LOCATING OF WIRELESS DEVICES USING SUM OF ROUND TRIP TIME AND ANGLE OF ARRIVAL SQUARED RESIDUALSNovember 2024January 2025Allow200NoNo
18934266HEIGHT MEASUREMENT DEVICE AND HEIGHT MEASUREMENT METHOD BASED ON MILLIMETER-WAVE RADARNovember 2024April 2025Allow510NoNo
18929189RF-SPECIFIC MATERIAL DETECTION DEVICE FOR AN APPLICATION-SPECIFIC DEVICEOctober 2024December 2025Allow1420NoNo
18922702ENHANCED MATERIAL DETECTION AND FREQUENCY SWEEP ANALYSIS OF CONTROLLED SUBSTANCES VIA DIGITAL SIGNAL PROCESSINGOctober 2024December 2024Allow200NoNo
18922729RF-BASED DETECTION DEVICE FOR MATERIAL IDENTIFICATION USING A SMART FREQUENCY SELECTION METHODOctober 2024March 2025Allow510NoNo
18858969HIGH-PERFORMANCE GNSS USING A LEO CONSTELLATION SPECTRUM UNDERLAYOctober 2024August 2025Allow1010NoNo
18921025ADAPTIVE TRACKING SYSTEM AND TRACKING METHOD FOR WATER SURFACE TARGETOctober 2024February 2025Allow410NoNo
18902674Detecting and Correcting for Location Drift in PNT SystemsSeptember 2024August 2025Abandon1030NoNo
18891798RADAR SYSTEM WITH WAVELENGTH INDEPENDENT ANTENNA ARRAYSeptember 2024January 2025Allow410YesNo
18891432RADAR SYSTEM WITH MACHINE LEARNING ENHANCED ANTENNA ARRAYSeptember 2024April 2025Allow610YesNo
18885741SYSTEMS AND METHODS FOR SYNTHETIC APERTURE RADAR IMAGE COMPRESSIONSeptember 2024October 2025Allow1320NoNo
18885934ADAPTIVE AUTOMATED PET TOY INCLUDING CIRCULATING DRIVE BELT EXTENSION OPERABLE WITH PROXIMITY SENSORSeptember 2024October 2025Allow1310NoNo
18824466SYSTEMS AND METHODS FOR WEAPON DETECTIONSeptember 2024December 2024Allow300NoNo
18819778ESTIMATION METHOD AND SYSTEM FOR QUASI-REAL-TIME MONITORING OF MOVING VELOCITY VECTOR OF TYPHOON BASED ON SYNTHETIC APERTURE RADARAugust 2024November 2024Allow300NoNo
18818539SYSTEM AND METHOD FOR DETERMINING ALCOHOL CONTENT UTILIZING CONTAINER MONITORING SYSTEMAugust 2024November 2024Allow300NoNo
18816084PORTABLE DEVICE ACCESSORYAugust 2024March 2025Allow610YesNo
18809740LASER FILTER ANTENNAAugust 2024October 2025Allow1400NoNo
18809869SYSTEM FOR RECEIVING A DESCENDING ROCKET ON A SEMISUBMERSIBLE VESSEL USING A SUSPENDED CABLEAugust 2024December 2025Allow1610NoNo
18800279SYSTEM AND METHOD FOR DETERMINING ALCOHOL CONTENT WITHIN CONTAINER UTILIZING CONTAINER MONITORING SYSTEMAugust 2024November 2024Allow300NoNo
18837096MULTI-LEVEL AIDING SIGNAL TO SUPPORT RAPID COMMUNICATIONAugust 2024May 2025Allow910NoNo
18794484TIME SERIES INSAR TROPOSPHERIC DELAY CORRECTION IN COMPLEX MOUNTAINOUS AREASAugust 2024February 2025Allow610NoNo
18792542SYSTEMS AND METHODS FOR SYNTHETIC APERTURE RADAR IMAGE COMPRESSIONAugust 2024April 2025Allow920NoNo
18791959MULTISTATIC BACKSCATTER FOR JOINT COMMUNICATION AND RANGINGAugust 2024October 2024Allow200NoNo
18790866MULTI-TARGET DETECTION USING CONVEX SPARSITY PRIORJuly 2024January 2025Allow610NoNo
18784934THREE-DIMENSIONAL DEFORMATION FIELD MODELING METHOD FUSING GNSS/INSAR OBSERVATION DATAJuly 2024January 2025Allow610NoNo
18785175CONTINUOUS REMOTE MAINTENANCE AND MONITORING OF RADIO EQUIPMENT IN AN AIR TRAFFIC MANAGEMENT ENVIRONMENTJuly 2024December 2024Allow400NoNo
18782964RF-BASED MATERIAL IDENTIFICATION SYSTEMS AND METHODSJuly 2024March 2025Allow810YesNo
18778062DATA AGGREGATION AND COMPRESSION SYSTEMS FACILITATING DATA BASE QUERYING AND FILE MANAGEMENTJuly 2024November 2025Allow1600NoNo
18776507MULTI-ANTENNA SINGLE-STATION STEREOSCOPIC-ARRANGEMENT ULTRA-SHORT BASELINE LIGHTNING LOCATION METHOD AND RELATED DEVICEJuly 2024January 2025Allow600NoNo
18772556Bidirectionally Activated Leash ReleaseJuly 2024January 2026Abandon1810NoNo
18766137SLOW-EATING TUMBLER TOYJuly 2024November 2025Allow1610NoNo
18764076Exclusive Delivery of Content Within Geographic AreasJuly 2024November 2025Allow1700YesNo
18763837RADAR APPARATUSJuly 2024May 2025Allow1110NoNo
18761383RADAR TRANSMIT BANDWIDTH AUGMENTATIONJuly 2024April 2025Allow910NoNo
18760326PET HARNESS INCLUDING LEG LIMITERS HAVING A RETRACTABLE BINDING ROPEJuly 2024August 2025Allow1410NoNo
18760226Crawling Insect Repelling Pet Dish PlatformJuly 2024October 2025Allow1610YesNo
18760319RADAR TRANSMIT BANDWIDTH AUGMENTATIONJuly 2024July 2025Allow1311YesNo
18753241DUAL ROUND TRIP TIME MITIGATION FOR WIRELESS LOCAL AREA NETWORK DEVICESJune 2024August 2024Allow200NoNo
18721717ZERO-PHASE CALIBRATION METHOD, COMPUTER DEVICE AND STORAGE MEDIUMJune 2024February 2025Allow810YesNo
18747336LOW POWER PHYSICAL ASSET LOCATION DETERMINATIONJune 2024November 2024Allow510YesNo
18745611LEARNING MODEL, SIGNAL PROCESSOR, FLYING OBJECT, AND PROGRAMJune 2024October 2025Allow1610NoNo
18743528RADIO-FREQUENCY COMPONENT COMPRISING SEVERAL WAVEGUIDE DEVICES WITH RIDGESJune 2024January 2025Allow700NoNo
18743722METHOD AND DEVICE FOR CONSTRUCTING REDUNDANCY-REMOVED COPRIME RADAR ARRAY BASED ON ONE-BIT QUANTIZATIONJune 2024March 2025Allow900NoNo
18742648REFLECTOR INSTALLATIONS FOR RADAR-BASED NAVIGATIONJune 2024October 2025Allow1620YesNo
18718928APPARATUS AND METHOD FOR BLOCKING NAVIGATION SATELLITE SIGNAL RECEPTION WITH RESPECT TO ILLEGAL UNMANNED AERIAL VEHICLESJune 2024November 2024Allow510NoNo
18741037PAST EVENT SIGNAL TRACKINGJune 2024June 2025Allow1210NoNo
18739839LOCATING A SATELLITE IN LOW-EARTH ORBITJune 2024December 2024Allow600NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3648.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
45
Examiner Affirmed
26
(57.8%)
Examiner Reversed
19
(42.2%)
Reversal Percentile
85.5%
Higher than average

What This Means

With a 42.2% 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
201
Allowed After Appeal Filing
89
(44.3%)
Not Allowed After Appeal Filing
112
(55.7%)
Filing Benefit Percentile
93.0%
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, 44.3% 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.

Art Unit 3648 - Prosecution Statistics Summary

Executive Summary

Art Unit 3648 is part of Group 3640 in Technology Center 3600. This art unit has examined 8,706 patent applications in our dataset, with an overall allowance rate of 86.4%. Applications typically reach final disposition in approximately 30 months.

Comparative Analysis

Art Unit 3648's allowance rate of 86.4% places it in the 82% 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 3648 receive an average of 1.46 office actions before reaching final disposition (in the 20% percentile). The median prosecution time is 30 months (in the 57% 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.