Prosecution Insights
Last updated: August 06, 2026

Chang And Hale LLP

33 pending office actions • 8 clients • 30 examiners • 23 art units • 0 of 33 (0%) have an AI response strategy ready

Quality Metrics (n=1892 apps, methodology: how we score firms)

96.3%
Allowance Rate
n=1892
+0.51σ
Allowance Rate (norm)
n=1892
3.5
OAs to Allowance
n=1127
+0.14σ
OAs to Allow (norm)
n=1127
860 days
Time to Allowance
n=1127
+3.2pp
Interview Lift
n=1892
35.6%
RCE Rate
n=1892
0.1%
Appeal Rate
n=1892

Rejection Performance (% of received rejections ultimately overcome)

89.9%
§101 Overcome
n=79
90.2%
§102 Overcome
n=561
91.8%
§103 Overcome
n=827
91.1%
§112 Overcome
n=326

Specialization & Scale

H04B, H03F, H01L
Top CPC Subclasses
34%
Top-3 CPC Share
n=1892
4
Practitioners
n=1892
473.0
Apps / Practitioner
n=1892

Portfolio Summary

33
Total Pending OAs
20
Non-Final OAs
13
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 10 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
0
Due this week
2
Due this month
1
Due in next 60 days
2
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 10 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 30 days (2)Due ≤ 60 days (1)Due later (2)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

11
Hard (33%)
20
Medium (61%)
2
Easy (6%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only13 (39%)
§102 only5 (15%)
Double-patenting only2 (6%)
Double-patenting + other2 (6%)
Multi-statute (no §101)11 (33%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

0
Life Sciences
0% of docket
0
Information Tech
0% of docket
12
Communications
36% of docket
11
Semiconductors
33% of docket
6
Mechanical / Eng
18% of docket
4
Business / Other
12% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

330 h
Manual time on pending OAs
66 h
Time saved (low, 20%)
115 h
Time saved (mid, 35%)
2.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
VO, NGUYEN THANH 2 85.2% +6.8%
RAHMAN, HAFIZUR 2 93.5% +8.3%
NGUYEN, KHIEM D 2 85.8% +12.5%
O TOOLE, COLLEEN J 1 57.8% +11.0%
CHEN, PATRICK C 1 82.4% +9.5%
MALDONADO, STEVEN 1 30.4% +46.2%
PADOT, TIMOTHY 1 39.6% +28.8%
LU, ZHIYU 1 49.2% +14.0%
LE, LANA N 1 81.5% +13.8%
PEREZ, JAMES M 1 89.5% +14.7%

Quick Wins (6)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
19017770 DEVICES AND METHODS RELATED TO SWITCH LINEARIZATION BY COMPENSATION OF A FIELD-EFFECT TRANSISTOR CHEN, PATRICK C
18817194 PACKAGED ELECTRICAL DEVICES AND RELATED METHODS LE, LANA N
18814905 RADIO-FREQUENCY AMPLIFIER HAVING REDUCED GAIN VARIATION PEREZ, JAMES M
18674818 PHASE SHIFTER FOR CARRIER AGGREGATION VO, NGUYEN THANH
18629634 MODULATED POWER CONSUMPTION RAHMAN, HAFIZUR
18614552 VARIABLE-GAIN AMPLIFIERS WITH CONFIGURABLE IMPEDANCE CIRCUITS RAHMAN, HAFIZUR

Hard Cases (11)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18955368 Data Structure Visualization and Management for Real-Time Data PADOT, TIMOTHY 60d overdue
18334728 SYSTEM AND METHOD FOR COOLING THE BRAIN OF A HUMAN SUBJECT DIXON, ANNETTE FREDRICKA 9d
18101089 ADJUSTING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED WAVEFORMS USING SELECTED SUBCARRIERS FOTAKIS, ARISTOCRATIS 27d
18232773 SPECIALTY CONTACT LENS DESIGN AND MANUFACTURING WILKES, ZACHARY W 61d
18233379 SYSTEMS, DEVICES, AND METHODS RELATED TO POWER AMPLIFIER EMPLOYING CASCODE STAGE OUTPUT SWITCHING TO ELIMINATE BAND SELECT SWITCH TRAN, PABLO N 70d
19000168 REAL-TIME NONINVASIVE SURGICAL NAVIGATION MALDONADO, STEVEN
18760042 SWITCHES WITH VOLTAGE LEVEL SHIFTERS IN RADIO FREQUENCY APPLICATIONS VO, NGUYEN THANH
18627682 VARACTOR TUNED INPUT TRAP NGUYEN, KHIEM D

Interview Candidates (8)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18955368 Data Structure Visualization and Management for Real-Time Data PADOT, TIMOTHY 60d overdue
19030382 ATTENUATORS FOR RADIO-FREQUENCY APPLICATIONS O TOOLE, COLLEEN J
19000168 REAL-TIME NONINVASIVE SURGICAL NAVIGATION MALDONADO, STEVEN
18954303 DEVICES AND METHODS RELATED TO UNPOWERED SWITCHING MODULE LU, ZHIYU
18817194 PACKAGED ELECTRICAL DEVICES AND RELATED METHODS LE, LANA N
18814905 RADIO-FREQUENCY AMPLIFIER HAVING REDUCED GAIN VARIATION PEREZ, JAMES M
18627682 VARACTOR TUNED INPUT TRAP NGUYEN, KHIEM D
18120287 WIDE-BANDGAP CHIP HAVING REFERENCE DEVICE NGUYEN, KHIEM D

Client Portfolio (8 clients)

Top Art Units

Art UnitApps
28433
26463
28492
26562
28421
37971
36251
26351
26631
26541

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19030382 ATTENUATORS FOR RADIO-FREQUENCY APPLICATIONS Skyworks Solutions, Inc. O TOOLE, COLLEEN J 2849 DP Final Rejection Pending Jan 17, 2025
19017770 DEVICES AND METHODS RELATED TO SWITCH LINEARIZATION BY COMPENSATION OF A FIELD-EFFECT TRANSISTOR Skyworks Solutions, Inc. CHEN, PATRICK C 2842 §102Other Non-Final OA Pending Jan 12, 2025
19000168 REAL-TIME NONINVASIVE SURGICAL NAVIGATION ZETA SURGICAL INC. MALDONADO, STEVEN 3797 §103§112 Final Rejection Pending Dec 23, 2024
18955368 Data Structure Visualization and Management for Real-Time Data Viralocity Software, LLC PADOT, TIMOTHY 3625 §102§103 Final Rejection 60d overdue Pending Nov 21, 2024
18954303 DEVICES AND METHODS RELATED TO UNPOWERED SWITCHING MODULE Skyworks Solutions, Inc. LU, ZHIYU §102Other Non-Final OA Pending Nov 20, 2024
18817194 PACKAGED ELECTRICAL DEVICES AND RELATED METHODS Skyworks Solutions, Inc. LE, LANA N §103DP Non-Final OA Pending Aug 27, 2024
18814905 RADIO-FREQUENCY AMPLIFIER HAVING REDUCED GAIN VARIATION Skyworks Solutions, Inc. PEREZ, JAMES M 2635 §102 Final Rejection Pending Aug 26, 2024
18788136 ACOUSTIC WAVE DEVICES Skyworks Solutions, Inc. OUTTEN, SAMUEL S 2843 §102 Non-Final OA 42d overdue Pending Jul 30, 2024
18776000 TAPE AND REEL MACHINE VISION SYSTEMS Skyworks Solutions, Inc. ORANGE, DAVID BENJAMIN 2663 §103 Non-Final OA Pending Jul 17, 2024
18760042 SWITCHES WITH VOLTAGE LEVEL SHIFTERS IN RADIO FREQUENCY APPLICATIONS Skyworks Solutions, Inc. VO, NGUYEN THANH 2646 §102§112 Non-Final OA Pending Jul 01, 2024
18674818 PHASE SHIFTER FOR CARRIER AGGREGATION Skyworks Solutions, Inc. VO, NGUYEN THANH 2646 DP Non-Final OA Pending May 25, 2024
18651705 NOISE SUPPRESSION FOR AUDIO SYSTEMS Skyworks Solutions, Inc. AGAHI, DARIOUSH 2656 §103 Final Rejection 58d overdue Pending May 01, 2024
18643539 HIGH-PERFORMANCE SMALL-FOOTPRINT AI-BASED NOISE SUPPRESSION MODEL Skyworks Solutions, Inc. LEE, JANGWOEN 2656 §103 Final Rejection Pending Apr 23, 2024
18643582 NOISE SUPPRESSION MODEL USING GATED LINEAR UNITS Skyworks Solutions, Inc. MCLEAN, IAN SCOTT 2654 §103 Final Rejection Pending Apr 23, 2024
18629634 MODULATED POWER CONSUMPTION Skyworks Solutions, Inc. RAHMAN, HAFIZUR §103 Non-Final OA Pending Apr 08, 2024
18627682 VARACTOR TUNED INPUT TRAP Skyworks Solutions, Inc. NGUYEN, KHIEM D §102§103 Non-Final OA Pending Apr 05, 2024
18614552 VARIABLE-GAIN AMPLIFIERS WITH CONFIGURABLE IMPEDANCE CIRCUITS Skyworks Solutions, Inc. RAHMAN, HAFIZUR 2843 §103 Non-Final OA Pending Mar 22, 2024
18596910 ANTENNAS, RELATED DEVICES AND METHODS Skyworks Solutions, Inc. LEE, SEUNG H 2876 §103 Non-Final OA Pending Mar 06, 2024
18521973 MULTI-CHIP MULTI-CHANNEL BEAMFORMER MODULE WITH INTERPOSER PASSIVES Skyworks Solutions, Inc. CHEN, ZHITONG 2815 §103 Non-Final OA Pending Nov 28, 2023
18469895 NESTED FILTERS Skyworks Solutions, Inc. KELLEY, STEVEN SHAUN 2646 §103Other Non-Final OA Pending Sep 19, 2023
18233379 SYSTEMS, DEVICES, AND METHODS RELATED TO POWER AMPLIFIER EMPLOYING CASCODE STAGE OUTPUT SWITCHING TO ELIMINATE BAND SELECT SWITCH Skyworks Solutions, Inc. TRAN, PABLO N 2643 §102§103 Non-Final OA 70d Pending Aug 14, 2023
18232773 SPECIALTY CONTACT LENS DESIGN AND MANUFACTURING Hedgefog Research, Inc. WILKES, ZACHARY W 2872 §102§112 Final Rejection 61d Pending Aug 10, 2023
18272384 SYSTEMS AND METHODS FOR HANDHELD REAL-TIME SURGICAL NAVIGATION GUIDANCE ZETA SURGICAL INC. WEBSTER, KARMEL JOHANNA 3792 §103 Non-Final OA Pending Jul 14, 2023
18346823 MULTI-LAYER ELECTRICAL DEVICE BOURNS, INC. LEE, KYUNG S 2831 §102 Non-Final OA Pending Jul 04, 2023
18338293 CARRIER ASSEMBLY FOR PROCESSING PACKAGED MODULES Skyworks Solutions, Inc. NGUYEN, DUY T V 2818 §103 Final Rejection 85d overdue Pending Jun 20, 2023
18334728 SYSTEM AND METHOD FOR COOLING THE BRAIN OF A HUMAN SUBJECT Neurointact, Inc. DIXON, ANNETTE FREDRICKA 3785 §102§103§112Other Non-Final OA 9d Pending Jun 14, 2023
18203279 SURFACE ACOUSTIC WAVE DEVICES WITH HIGH VELOCITY HIGHER-ORDER MODE Tohoku University GANNON, LEVI 2849 §102§103 Final Rejection Pending May 30, 2023
18120287 WIDE-BANDGAP CHIP HAVING REFERENCE DEVICE Skyworks Solutions, Inc. NGUYEN, KHIEM D 2843 §102§103§112 Non-Final OA Pending Mar 10, 2023
18101089 ADJUSTING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED WAVEFORMS USING SELECTED SUBCARRIERS Skyworks Solutions, Inc. FOTAKIS, ARISTOCRATIS 2633 §102§103§112 Final Rejection 27d Pending Jan 24, 2023
18093122 USER INTERFACE FOR DATA TRAJECTORY VISUALIZATION OF SOUND SUPPRESSION APPLICATIONS Skyworks Solutions, Inc. BOGGS JR., JAMES 2657 §103DPOther Final Rejection Pending Jan 04, 2023
18092176 PHASE SHIFTERS FOR ANTENNA TILT Skyworks Solutions, Inc. MAKHDOOM, SAMARINA 3648 §103 Final Rejection 4d overdue Pending Dec 30, 2022
17955058 WINDOW CIRCUITS, DEVICES AND METHODS FOR AUDIO AMPLIFIERS Skyworks Solutions, Inc. KRZYSTAN, ALEXANDER J 2694 §103 Non-Final OA 33d Pending Sep 28, 2022
17885272 DEVICES, METHODS AND SYSTEMS RELATED TO WEARABLE PATCH HAVING BLOOD ALCOHOL CONTENT DETECTOR Life Patch International GLOVER, NELSON ALEXANDER 3791 §103§112 Non-Final OA Pending Aug 10, 2022

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