Prosecution Insights
Last updated: May 29, 2026

Kla Corporation

58 pending office actions • 26 art units • 51 examiners • 0 of 58 (0%) have an AI response strategy ready • 97 patents granted in the last 365 days

Portfolio Summary

58
Total Pending OAs
40
Non-Final OAs
14
Final Rejections
4
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 58 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

38
Overdue
1
Due this week
13
Due this month
5
Due in next 60 days
1
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. 58 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (38)Due ≤ 7 days (1)Due ≤ 30 days (13)Due ≤ 60 days (5)Due later (1)

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.

1
Hard (2%)
57
Medium (98%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only1 (2%)
§103 only49 (84%)
§102 only8 (14%)

Industry Mix

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

7
Life Sciences
12% of docket
2
Information Tech
3% of docket
6
Communications
10% of docket
41
Semiconductors
71% of docket
2
Mechanical / Eng
3% of docket
0
Business / Other
0% 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.

580 h
Manual time on pending OAs
116 h
Time saved (low, 20%)
203 h
Time saved (mid, 35%)
5.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
FABIAN JR, ROBERTO 3 71.5% +26.2%
WHITESELL, STEVEN H 3 81.8% +13.3%
UNDERWOOD, JARREAS C 2 78.9% +22.9%
YAZBACK, MAHER 2 74.5% +24.3%
SCHNASE, PAUL DANIEL 2 81.3% +33.3%
DINH, LYNDA 1 74.0% +28.8%
LE, MINH Q 1 80.3% +16.4%
KIM, PETER B 1 82.8% +9.1%
DUONG, HENRY ABRAHAM 1 79.0% +6.7%
PEREZ-GUZMAN, CARLOS GABRIEL 1 81.3% +24.7%

Quick Wins (8)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18812757 METHOD TO PERFORM IN-SITU VACUUM CONTAMINATION MEASUREMENT AND IDENTIFICATION IN ARBITRARILY LARGE CHAMBERS LE, MINH Q 154d overdue
18401569 CALIBRATION FOR IN-PLANE DISTORTION TOOL-TO-TOOL MATCHING SCHNASE, PAUL DANIEL 154d overdue
17762030 CALIBRATED MEASUREMENT OF OVERLAY ERROR USING SMALL TARGETS SCHNASE, PAUL DANIEL 97d overdue
17948151 HIGH-RESOLUTION EVALUATION OF OPTICAL METROLOGY TARGETS FOR PROCESS CONTROL WHITESELL, STEVEN H 50d overdue
18743118 Multiple Pass Optical Measurements Of Semiconductor Structures KIM, PETER B 8d overdue
18421454 OVERLAY METROLOGY TARGET FOR DIE-TO-WAFER OVERLAY METROLOGY WHITESELL, STEVEN H 13d
18624444 PARALLEL SCANNING OVERLAY METROLOGY WITH OPTICAL META-SURFACES PEREZ-GUZMAN, CARLOS GABRIEL 22d
18618280 SINGLE GRAB PUPIL LANDSCAPE VIA OUTSIDE THE OBJECTIVE LENS BROADBAND ILLUMINATION WHITESELL, STEVEN H 29d

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18229606 Methods And Systems For Systematic Error Compensation Across A Fleet Of Metrology Systems Based On A Trained Error Evaluation Model GAVIA, NYLA EMANI ANN 35d

Interview Candidates (15)

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
18812757 METHOD TO PERFORM IN-SITU VACUUM CONTAMINATION MEASUREMENT AND IDENTIFICATION IN ARBITRARILY LARGE CHAMBERS LE, MINH Q 154d overdue
18401569 CALIBRATION FOR IN-PLANE DISTORTION TOOL-TO-TOOL MATCHING SCHNASE, PAUL DANIEL 154d overdue
17762030 CALIBRATED MEASUREMENT OF OVERLAY ERROR USING SMALL TARGETS SCHNASE, PAUL DANIEL 97d overdue
18968732 METROLOGY USING REFERENCE-BASED SYNTHETIC SPECTRA DINH, LYNDA 66d overdue
18755644 WAVEPLATE COMPENSATOR DESIGN UNDERWOOD, JARREAS C 60d overdue
17948151 HIGH-RESOLUTION EVALUATION OF OPTICAL METROLOGY TARGETS FOR PROCESS CONTROL WHITESELL, STEVEN H 50d overdue
17956643 Spectroscopic Reflectometry And Ellipsometry Measurements With Electroreflectance Modulation YAZBACK, MAHER 42d overdue
18642417 SYSTEM AND METHOD FOR DETERMINING OVERLAY MEASUREMENT OF A SCANNING TARGET USING MULTIPLE WAVELENGTHS YAZBACK, MAHER 3d overdue

Top Art Units

Art UnitApps
2877 17
2857 6
2881 5
1759 3
2872 2
2884 2
2663 2
2188 2
2858 2
3753 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18968732 METROLOGY USING REFERENCE-BASED SYNTHETIC SPECTRA DINH, LYNDA 2857 §103 Final Rejection 66d overdue Pending Dec 04, 2024
18812757 METHOD TO PERFORM IN-SITU VACUUM CONTAMINATION MEASUREMENT AND IDENTIFICATION IN ARBITRARILY LARGE CHAMBERS LE, MINH Q 3753 §103 Non-Final OA 154d overdue Pending Aug 22, 2024
18755644 WAVEPLATE COMPENSATOR DESIGN UNDERWOOD, JARREAS C 2877 §103 Non-Final OA 60d overdue Pending Jun 26, 2024
18743118 Multiple Pass Optical Measurements Of Semiconductor Structures KIM, PETER B 2882 §103 Non-Final OA 8d overdue Pending Jun 14, 2024
18646553 Spectroscopic Ellipsometry With Detector Resolved Numerical Aperture For Deep Structure Metrology FABIAN JR, ROBERTO 2877 §103 Final Rejection 68d Pending Apr 25, 2024
18642348 HIGH-PRECISION ALIGNABLE OPTICAL MOUNTING DUONG, HENRY ABRAHAM 2872 §102 Non-Final OA 20d Pending Apr 22, 2024
18642417 SYSTEM AND METHOD FOR DETERMINING OVERLAY MEASUREMENT OF A SCANNING TARGET USING MULTIPLE WAVELENGTHS YAZBACK, MAHER 2877 §103 Non-Final OA 3d overdue Pending Apr 22, 2024
18624444 PARALLEL SCANNING OVERLAY METROLOGY WITH OPTICAL META-SURFACES PEREZ-GUZMAN, CARLOS GABRIEL 2877 §103 Non-Final OA 22d Pending Apr 02, 2024
18618280 SINGLE GRAB PUPIL LANDSCAPE VIA OUTSIDE THE OBJECTIVE LENS BROADBAND ILLUMINATION WHITESELL, STEVEN H 1759 §103 Final Rejection 29d Pending Mar 27, 2024
18611299 FLUORESCENCE MODE FOR WORKPIECE INSPECTION COOK, JONATHON 2877 §103 Non-Final OA 44d overdue Pending Mar 20, 2024
18594991 METHOD AND SYSTEM FOR BONDING HIGH FLUENCE OPTICS TO OPTOMECHANICAL ASSEMBLIES STONER, KILEY SHAWN 1735 §103 Non-Final OA 16d overdue Pending Mar 04, 2024
18590913 FLATNESS PRECISION IMPROVEMENT WITH SYSTEMATIC ERROR REDUCTION VIA INDUCED WAFER TILT VARIATION LYONS, MICHAEL A 2877 §103 Non-Final OA 96d overdue Pending Feb 28, 2024
18588822 SYSTEM AND METHOD FOR GROWTH OF QUASI-PHASE MATCHED STRONTIUM TETRABORATE AND LITHIUM TRIBORATE CRYSTALS FOR FREQUENCY CONVERSION KUNEMUND, ROBERT M 1714 §103 Non-Final OA 6d Pending Feb 27, 2024
18587703 SIDE-BY-SIDE OFF-CENTER DIE OVERLAY TARGET LAPAGE, MICHAEL P 2877 §103 Non-Final OA 58d overdue Pending Feb 26, 2024
18424069 SYSTEM AND METHOD FOR DYNAMIC ABERRATION CORRECTION KIM, ROBERT H 2881 §102 Non-Final OA 17d overdue Pending Jan 26, 2024
18421454 OVERLAY METROLOGY TARGET FOR DIE-TO-WAFER OVERLAY METROLOGY WHITESELL, STEVEN H 1759 §103 Final Rejection 13d Pending Jan 24, 2024
18421580 OVERLAY MARK DESIGN ENABLING LARGE OVERLAY MEASUREMENT SOHRABY, PARDIS 2664 §103 Non-Final OA 27d Pending Jan 24, 2024
18408395 OPTICAL BEAM SENSOR WITH CENTER TRANSMISSIVE CUT-OUT FAYE, MAMADOU 2884 §103 Non-Final OA 29d Pending Jan 09, 2024
18401569 CALIBRATION FOR IN-PLANE DISTORTION TOOL-TO-TOOL MATCHING SCHNASE, PAUL DANIEL 2877 §103 Final Rejection 154d overdue Pending Dec 31, 2023
18542072 Optics for In-Situ Scanning Electron Microscope Repair MCCORMACK, JASON L 2881 §103 Non-Final OA 34d Pending Dec 15, 2023
18535159 SYSTEM AND METHOD OF FINDING PIXEL-TO-DESIGN TARGET FOR DRAM INSPECTION CONNER, SEAN M 2663 §103 Non-Final OA 49d overdue Pending Dec 11, 2023
18529854 SYSTEM AND METHOD FOR DURATION-BASED SAMPLE PATH ADJUSTMENT NIMOX, RAYMOND LONDALE 2857 §102 Non-Final OA 22d Pending Dec 05, 2023
18387015 Methods And Systems For Measurement Of Semiconductor Structures With Active Tilt Correction FABIAN JR, ROBERTO 2877 §102 Non-Final OA 1d overdue Pending Nov 04, 2023
18375920 Magnetically Opposed, Iron Core Linear Motor Based Motion Stages For Semiconductor Wafer Positioning DESAI, NAISHADH N 2834 §103 Non-Final OA 21d Pending Oct 02, 2023
18375512 IMAGING THOUSANDS OF ELECTRON BEAMS DURING WORKPIECE INSPECTION KALISZEWSKI, ALINA ROSE 2881 §103 Non-Final OA 70d overdue Pending Sep 30, 2023
18369609 SYSTEMS AND METHODS FOR GENERATING A FLAT-TOP ILLUMINATION BEAM BASED ON INTERLACING, INCOHERENTLY OVERLAPPING SPOTS CHANG, AUDREY Y 2872 §103 Non-Final OA 56d overdue Pending Sep 18, 2023
18467371 ANGLE RESOLVED REFLECTOMETRY FOR THICK FILMS AND HIGH ASPECT RATIO STRUCTURES STOCK JR, GORDON J 2877 §103 Final Rejection 72d overdue Pending Sep 14, 2023
18234773 MULTI-PITCH GRID OVERLAY TARGET FOR SCANNING OVERLAY METROLOGY XING, CHRISTINA ILONA 2877 §103 Final Rejection 10d overdue Pending Aug 16, 2023
18229606 Methods And Systems For Systematic Error Compensation Across A Fleet Of Metrology Systems Based On A Trained Error Evaluation Model GAVIA, NYLA EMANI ANN 2857 §101 Non-Final OA 35d Pending Aug 02, 2023
18228643 PUPIL FILTER WITH SPATIALLY-VARYING TRANSMISSION ARTMAN, THOMAS R 2884 §103 Final Rejection 34d Pending Jul 31, 2023
18353098 METROLOGY SAMPLING PLANS FOR ONLY OUT OF SPECIFICATION DETECTION STEAR, RYAN JAMES 2857 §103 Non-Final OA 1d overdue Pending Jul 16, 2023
18343390 EUV In-Situ Linearity Calibration for TDI Image Sensors Using Test Photomasks FABIAN JR, ROBERTO 2877 §103 Final Rejection 57d Pending Jun 28, 2023
18138709 HEIGHT SENSING SYSTEM FOR ELECTRON BEAM METROLOGY TOOL TSAI, HSIEN C 2881 §103 Non-Final OA 58d overdue Pending Apr 24, 2023
18136747 Full Wafer Measurement Based On A Trained Full Wafer Measurement Model HENSON, MISCHITA L 2857 §102 Non-Final OA 35d overdue Pending Apr 19, 2023
18136772 Combined Spectroscopic Reflectometry And Pattern Recognition Based Measurements Of Semiconductor Structures UNDERWOOD, JARREAS C 2877 §103 Non-Final OA 34d Pending Apr 19, 2023
18131163 MOSAIC OVERLAY TARGETS TON, TRI T 2877 §102 Non-Final OA 107d overdue Pending Apr 05, 2023
18128125 MULTI-MODE OPTICAL INSPECTION DULANEY, KATHLEEN YUAN 2666 §103 Non-Final OA 10d overdue Pending Mar 29, 2023
18178528 DEEP LEARNING MODEL-BASED ALIGNMENT FOR SEMICONDUCTOR APPLICATIONS LU, ZHIYU 2665 §103 Non-Final OA 20d Pending Mar 05, 2023
18116187 INTERFACE-BASED THIN FILM METROLOGY USING SECOND HARMONIC GENERATION GARBER, ERIN R 2878 §103 Non-Final OA 140d overdue Pending Mar 01, 2023
17993565 Methods And Systems For Data Driven Parameterization And Measurement Of Semiconductor Structures DINH, PAUL 2851 §102 Non-Final OA 58d overdue Pending Nov 23, 2022
17982472 PLASMA HYPERMODEL INTEGRATED WITH FEATURE-SCALE PROFILE MODEL FOR ACCELERATED ETCH PROCESS DEVELOPMENT KIM, EUNHEE 2188 §102 Non-Final OA 37d overdue Pending Nov 07, 2022
18049863 METHOD AND APPARATUS FOR DYNAMIC SEALING BETWEEN ZONES OF ULTRA-CLEAN VACUUM SYSTEM JOERGER, KAITLIN S 3652 §103 Final Rejection 46d overdue Pending Oct 26, 2022
17956643 Spectroscopic Reflectometry And Ellipsometry Measurements With Electroreflectance Modulation YAZBACK, MAHER 2877 §103 Non-Final OA 42d overdue Pending Sep 29, 2022
17948151 HIGH-RESOLUTION EVALUATION OF OPTICAL METROLOGY TARGETS FOR PROCESS CONTROL WHITESELL, STEVEN H 1759 §103 Final Rejection 50d overdue Pending Sep 19, 2022
17944009 METHOD AND SYSTEM FOR CLEANING OPTICAL ELEMENTS IN EUV OPTICAL SYSTEMS COCCHI, MICHAEL EDWARD 2188 §103 Non-Final OA 91d overdue Pending Sep 13, 2022
17887078 SYSTEM AND METHOD FOR FEATURE SIGNAL ENHANCEMENT USING A SELECTIVELY BONDED PHOTOLUMINESCENT MATERIAL PHILLIPS, RUFUS L 2877 §103 Non-Final OA 4d overdue Pending Aug 12, 2022
17850888 Method and System for Providing a Quality Metric for Improved Process Control KAY, DOUGLAS 2857 §103 Non-Final OA 28d Pending Jun 27, 2022
17834767 SENSORS, IMAGING SYSTEMS, AND METHODS FOR FORMING A SENSOR SWANSON, WALTER H 2815 §103 Non-Final OA 5d overdue Pending Jun 07, 2022
17713017 METHOD AND SYSTEM FOR MIXED MODE WAFER INSPECTION BALI, VIKKRAM 2663 §103 Non-Final OA 19d Pending Apr 04, 2022
17762030 CALIBRATED MEASUREMENT OF OVERLAY ERROR USING SMALL TARGETS SCHNASE, PAUL DANIEL 2877 §103 Non-Final OA 97d overdue Pending Mar 18, 2022
17696636 SYSTEM AND METHOD FOR ION-ASSISTED DEPOSITION OF OPTICAL COATINGS OTT, PATRICK S 1794 §103 Non-Final OA 44d overdue Pending Mar 16, 2022
17591569 COMBINING FOCUSED ION BEAM MILLING AND SCANNING ELECTRON MICROSCOPE IMAGING TANDY, LAURA ELOISE 2881 §103 Non-Final OA 85d overdue Pending Feb 02, 2022
17466703 WAFER ALIGNMENT IMPROVEMENT THROUGH IMAGE PROJECTION-BASED PATCH-TO-DESIGN ALIGNMENT DHOOGE, DEVIN J 2677 §103 Non-Final OA 107d overdue Pending Sep 03, 2021
17408106 Coolant Microleak Sensor for a Vacuum System VILLALUNA, ERIKA J 2852 §103 Final Rejection 3d overdue Pending Aug 20, 2021
17321263 SYSTEM AND METHOD FOR AUTOMATICALLY IDENTIFYING DEFECT-BASED TEST COVERAGE GAPS IN SEMICONDUCTOR DEVICES SULTANA, DILARA 2858 §103 Non-Final OA 23d Pending May 14, 2021
17228543 Plasma Cell for Providing VUV Filtering in a Laser-Sustained Plasma Light Source HORIKOSHI, STEVEN Y 2875 §103 Non-Final OA 20d Pending Apr 12, 2021
16935432 Systems and Methods for MOKE Metrology with Consistent MRAM Die Orientation SCHINDLER, DAVID M 2858 §103 Final Rejection 24d overdue Pending Jul 22, 2020
16864972 Wave-Front Aberration Metrology of Extreme Ultraviolet Mask Inspection Systems ANGEBRANNDT, MARTIN J 1737 §103 Final Rejection 46d overdue Pending May 01, 2020

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