USPTO Art Unit 3648 Prosecution Statistics

Art Unit Information

Art Unit: 3648
Group: 3640
Tech Center: 3600
Total Cases: 9,949
Last Active: February 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19049237ONE-BIT QUANTIZATION BASED TARGET TRACKING METHOD, DEVICE, TERMINAL, AND STORAGE MEDIUMFebruary 2025April 2025Allow200NoNo
18996516HYBRID SENSOR HEAD FOR SURFACE INSPECTION AND METHOD OF USEJanuary 2025June 2025Allow500NoNo
19004293WIRELESS SENSING FOR IN-VEHICLE CHILD PRESENCE DETECTIONDecember 2024February 2025Allow200NoNo
18991810EFFICIENT SYNTHESIS METHOD FOR RADIATION PATTERN OF CONFORMAL ARRAY ANTENNADecember 2024April 2025Allow400NoNo
18991311METHOD FOR FAST AUTOMATIC CALIBRATION OF PHASED ARRAY BASED ON RESIDUAL NEURAL NETWORKDecember 2024March 2025Allow200YesNo
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
18976291METHODS FOR PHASED ARRAY CALIBRATION BASED ON CNN-LSTM USING POWER MEASUREMENTDecember 2024April 2025Allow410NoNo
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
18922702ENHANCED MATERIAL DETECTION AND FREQUENCY SWEEP ANALYSIS OF CONTROLLED SUBSTANCES VIA DIGITAL SIGNAL PROCESSINGOctober 2024December 2024Allow200NoNo
18891798RADAR SYSTEM WITH WAVELENGTH INDEPENDENT ANTENNA ARRAYSeptember 2024January 2025Allow410YesNo
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
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
18776507MULTI-ANTENNA SINGLE-STATION STEREOSCOPIC-ARRANGEMENT ULTRA-SHORT BASELINE LIGHTNING LOCATION METHOD AND RELATED DEVICEJuly 2024January 2025Allow600NoNo
18763837RADAR APPARATUSJuly 2024May 2025Allow1110NoNo
18761383RADAR TRANSMIT BANDWIDTH AUGMENTATIONJuly 2024April 2025Allow910NoNo
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
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
18741037PAST EVENT SIGNAL TRACKINGJune 2024June 2025Allow1210NoNo
18718928APPARATUS AND METHOD FOR BLOCKING NAVIGATION SATELLITE SIGNAL RECEPTION WITH RESPECT TO ILLEGAL UNMANNED AERIAL VEHICLESJune 2024November 2024Allow510NoNo
18739839LOCATING A SATELLITE IN LOW-EARTH ORBITJune 2024December 2024Allow600NoNo
18738786Methods and Systems for Detecting and Mitigating Automotive Radar InterferenceJune 2024April 2025Allow1010NoNo
18679345ELECTROMAGNETIC WAVE MEDICAL IMAGING SYSTEM, DEVICE, AND METHODSMay 2024June 2025Allow1220YesNo
18672741CONTINUOUS-WAVE RADAR SYSTEM FOR DETECTING FERROUS AND NON-FERROUS METALS IN SALTWATER ENVIRONMENTSMay 2024February 2025Allow810NoNo
18668707ULTRA-LOW COST HIGH PERFORMANCE SATELLITE APERTUREMay 2024March 2025Allow1010NoNo
18669155METHOD AND SYSTEM FOR ADAPTIVE GNSS SAMPLING RATE TO IMPROVE MILEAGE REPORTING ACCURACY OF A ROAD USAGE CHARGE (RUC) SYSTEMMay 2024October 2024Allow510NoNo
18667319APPARATUS FOR AND METHODS OF CONTROLLING RADAR CONTACTMay 2024February 2025Allow901NoNo
18710768RECONFIGURABLE MASSIVE MIMO ARRAY SYSTEM FOR ENERGY EFFICIENT COMMUNICATIONSMay 2024November 2024Allow610NoNo
18662724RADAR SYSTEM THAT USES VELOCITY LABELED MULTIPLEXING FOR GENERATING DETECTIONSMay 2024June 2025Allow1320YesNo
18659723RIS-BASED ENHANCED POSITIONINGMay 2024January 2025Allow820YesNo
18658340METHOD AND APPARATUS FOR REAR CROSS COLLISION WARNINGMay 2024March 2025Allow1010NoNo
18655894MULTI-CHIP SYNCHRONIZATION FOR DIGITAL RADARSMay 2024June 2025Allow1310NoNo
18654493RANGE-GATED IMAGERMay 2024July 2024Allow300NoNo
18654683NON-UNIFORM MULTI-DIMENSIONAL DATA ACCESS FOR RADAR DATA PROCESSINGMay 2024May 2025Allow1300NoNo
18652208SCATTERING APERTURE IMAGING METHOD AND DEVICE, SYSTEM, AND STORAGE MEDIUMMay 2024August 2024Allow400NoNo
18646392LIDAR SYSTEM AND METHOD OF OPERATIONApril 2024May 2025Abandon1310NoNo
18645815VEHICLE CONTROL SYSTEM FOR DETECTING OBJECT AND METHOD THEREOFApril 2024May 2025Allow1210NoNo
18645174MULTI-TARGET DETECTION USING CONVEX SPARSITY PRIORApril 2024February 2025Allow910YesNo
18641949METHODS AND SYSTEMS FOR ULTRA-WIDEBAND (UWB) BASED SUBWAY PERSONNEL DETECTIONApril 2024June 2025Allow1410NoNo
18641156LEO SATELLITE CONSTELLATION SYSTEM FOR FACILITATING ENHANCED POSITIONING AND METHODS FOR USE THEREWITHApril 2024March 2025Allow1110NoNo
18639952Radar deviceApril 2024July 2024Allow300NoNo
18638857METHOD FOR ADJUSTING LASER RADAR, LASER DEVICE AND LASER RADARApril 2024June 2024Allow200NoNo
18630364METHOD AND SYSTEM FOR ANTENNA ARRAY CALIBRATION FOR CROSS-COUPLING AND GAIN/PHASE VARIATIONS IN RADAR SYSTEMSApril 2024April 2025Allow1200YesNo
18628120METHOD AND APPARATUS FOR PROCESSING RADAR SIGNAL BY CORRECTING PHASE DISTORTIONApril 2024January 2025Allow910NoNo
18626387DIRECTIONAL SEARCH AND RESCUE SYSTEM AND METHODApril 2024July 2024Allow300NoNo
18625853CONTINUOUS-WAVE RADAR SYSTEM FOR DETECTING FERROUS AND NON-FERROUS METALS IN SALTWATER ENVIRONMENTSApril 2024November 2024Allow810NoNo
18625258POSITION SENSOR AND POSITION ENCODER USING MILLIMETER-WAVE METAMATERIAL WITH A MILLIMETER-WAVE RADARApril 2024December 2024Allow800NoNo
18624997METHOD AND DEVICE FOR PREDICTING IMPACT POINT BASED ON NON-LINEAR MANEUVER IDENTIFICATION OF FLYING OBJECTApril 2024September 2024Allow600NoNo
18624432PORTABLE DEVICE ACCESSORYApril 2024April 2025Allow1210NoNo
18694705Application of Adaptive Pulse Compression (APC) in Cluttered Radar Cross-Section (RCS) MeasurementsMarch 2024July 2024Allow310YesNo
18612620MITIGATION OF ANGLE OF ARRIVAL MULTIPATH VARIATIONS FOR WIRELESS LOCAL AREA NETWORK DEVICESMarch 2024July 2024Allow400YesNo
18609271WIRELESS TRACKING OF POWER TOOLS AND RELATED DEVICESMarch 2024March 2025Allow1210NoNo
18608497METHOD AND APPARATUS FOR GENERATING POLICIES FOR IMPROVING NETWORK SYSTEM PERFORMANCEMarch 2024January 2025Allow1010NoNo
18592686RADIO FREQUENCY (RF) RANGING IN PROPAGATION LIMITED RF ENVIRONMENTS UTILIZING AERIAL VEHICLESMarch 2024September 2024Allow700NoNo
18589890MEASUREMENT AND IMAGING INSTRUMENTS AND BEAMFORMING METHODFebruary 2024September 2024Allow700NoNo
18686754MULTI-CHANNEL ACTIVE ARRAY SYSTEM AND METHOD FOR OBTAINING POSITIONAL INFORMATION OF AN OBJECTFebruary 2024June 2024Allow300YesNo
18582826Clutter RemovalFebruary 2024January 2025Allow1110NoNo
18440518METHOD OF TARGET FEATURE EXTRACTION AND MULTI-TARGET TRACKING BASED ON 4D MILLIMETER WAVE RADARFebruary 2024July 2024Allow510NoNo
18439171DETERRENT FOR UNMANNED AERIAL SYSTEMSFebruary 2024June 2024Allow400NoNo
18439191METHOD AND SYSTEM FOR MULTI-CHIP OPERATION OF RADAR SYSTEMSFebruary 2024February 2025Allow1210NoNo
18293954RADAR SYSTEM, RADAR DEVICE, AND MONITORING METHODJanuary 2024December 2024Allow1020YesNo
18426961METHOD FOR DESIGNING TERMINAL GUIDANCE LAW BASED ON DEEP REINFORCEMENT LEARNINGJanuary 2024March 2025Allow1400NoNo
18426340Fast Chirp Synthesis via Segmented Frequency ShiftingJanuary 2024August 2024Allow700NoNo
18424758CONTAINER MONITORING SYSTEM AND METHOD THEREOFJanuary 2024June 2024Allow410NoNo
18292324RADAR MODULE USING MULTIPLE POLARIZATIONSJanuary 2024June 2024Allow500NoNo
18421391Mobile Signal Based Building FootprintsJanuary 2024November 2024Allow1010NoNo
18291190RADIOMETER AND RADIOMETER-BASED SOIL MOISTURE DETERMINATION METHODJanuary 2024June 2024Allow400NoNo
18407375INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, COMPUTER PROGRAM, AND MOBILE DEVICEJanuary 2024August 2024Allow800NoNo
18405867WIRELESS TRACKING OF POWER TOOLS AND RELATED DEVICESJanuary 2024March 2025Allow1410NoNo
18402346DETERMINING POSITIONS USING ROTATING ANTENNA ARRAYJanuary 2024January 2025Allow1210NoNo
18401920DOPPLER PROCESSING IN FREQUENCY-MODULATED CONTINUOUS WAVE RADAR SYSTEMS USING DITHERJanuary 2024February 2025Allow1410NoNo
18398309MULTI-SOURCE ELEVATION DATA FUSION METHOD, APPARATUS, COMPUTER DEVICE, AND MEDIUMDecember 2023May 2024Allow410NoNo
18394544RADAR OBJECT CLASSIFICATION METHOD AND SYSTEMDecember 2023April 2025Allow1630YesNo
18390361SYSTEMS, DEVICES, AND METHODS FOR REAL-TIME INTEFERENCE DETECTIONDecember 2023January 2025Allow1310NoNo
18544642DRONE DELIVERY DEVICE FOR USE WITH A DRONE DELIVERY SERVICE AND METHODS FOR USE THEREWITHDecember 2023November 2024Allow1110NoNo
18542878GOLF BALL LOCATING NONLINEAR RADAR SYSTEM EMPLOYING A SNOWFLAKE NONLINEAR PASSIVE TAG AND ASSOCIATED METHOD(S)December 2023May 2024Allow510NoNo
18542448LOCATION DETERMINATION USING ANGLE-OF-ARRIVAL AND TIME-OF-FLIGHTDecember 2023June 2024Allow620YesNo
18540484METHOD AND APPARATUS TO DETERMINE RELATIVE LOCATION USING GNSS CARRIER PHASEDecember 2023January 2025Allow1300NoNo

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
39
Examiner Affirmed
25
(64.1%)
Examiner Reversed
14
(35.9%)
Reversal Percentile
66.9%
Higher than average

What This Means

With a 35.9% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
200
Allowed After Appeal Filing
89
(44.5%)
Not Allowed After Appeal Filing
111
(55.5%)
Filing Benefit Percentile
92.3%
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, 44.5% 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 9,949 patent applications in our dataset, with an overall allowance rate of 87.4%. Applications typically reach final disposition in approximately 30 months.

Comparative Analysis

Art Unit 3648's allowance rate of 87.4% 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 3648 receive an average of 1.39 office actions before reaching final disposition (in the 18% percentile). The median prosecution time is 30 months (in the 45% 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 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.