Prosecution Insights
Last updated: October 02, 2026

Western Digital Technologies Inc.

Technology areas: Communications • Semiconductors, Circuits & Optics

44 pending office actions • 17 art units • 31 examiners • 0 of 44 (0%) have an AI response strategy ready • 154 patents granted in the last 365 days

Portfolio Summary

44
Total Pending OAs
23
Non-Final OAs
20
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 15 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

4
Overdue
1
Due this week
5
Due this month
5
Due in next 60 days
0
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. 15 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (4)Due ≤ 7 days (1)Due ≤ 30 days (5)Due ≤ 60 days (5)

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.

23
Hard (52%)
18
Medium (41%)
3
Easy (7%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other4 (9%)
§103 only14 (32%)
§102 only4 (9%)
§112 only2 (5%)
Double-patenting only1 (2%)
Multi-statute (no §101)19 (43%)

Industry Mix

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

8
Life Sciences
18% of docket
4
Information Tech
9% of docket
14
Communications
32% of docket
13
Semiconductors
30% of docket
1
Mechanical / Eng
2% of docket
4
Business / Other
9% 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.

440 h
Manual time on pending OAs
88 h
Time saved (low, 20%)
154 h
Time saved (mid, 35%)
3.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KLIMOWICZ, WILLIAM JOSEPH 10 80.9% +18.2%
CHAU, LISA N 4 25.2% +17.5%
KIM, MICHELLE JINJU 2 70.0% +50.0%
AGUSTIN, PETER VINCENT 1 83.9% +12.6%
RENNER, CRAIG A 1 84.2% +17.6%
CHAU, LINDA N 1 44.6% +16.0%
MCDONALD, JASON ANDREW 1 57.1% +80.0%
CRITE, ANTONIO B 1 81.6% -13.4%
AHMED, SHAHED 1 90.8% -0.1%
MEHTA, RATISHA 1 89.6% +5.6%

Quick Wins (9)

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
18509051 BONDING STRUCTURES FOR HIGH-DENSITY METAL-TO-METAL BONDING AND METHODS FOR FORMING THE SAME MEHTA, RATISHA 41d
18890207 Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof KLIMOWICZ, WILLIAM JOSEPH 46d
19244507 Magnetic Recording Head with A Cross-Track Current Flow In A Low Resistance Path KLIMOWICZ, WILLIAM JOSEPH —
19227025 HARD DISK DRIVE INTERPOSE SWAGE KLIMOWICZ, WILLIAM JOSEPH —
19201452 Middle Shields Two-Dimensional Magnetic Recording Read Heads KLIMOWICZ, WILLIAM JOSEPH —
19076557 SUSPENSION ARM AND SLIDER CONTACT FOR MAGNETIC STORAGE DEVICE KLIMOWICZ, WILLIAM JOSEPH —
19041235 Shunt Reducing Migration Barrier Layer Materials and Insertion Techniques for Epitaxial Topological Materials RENNER, CRAIG A —
18830299 INTER-COVER PLACEMENT OF GAS-PRODUCING SUBSTANCES IN DATA STORAGE DEVICES KLIMOWICZ, WILLIAM JOSEPH —

Hard Cases (24)

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
18361575 THREE-DIMENSIONAL MEMORY DEVICE CONTAINING OVERLYING THIN FILM TRANSISTOR CONTROL CIRCUIT AND METHOD OF MAKING THEREOF YUSHINA, GALINA G 9d
18666635 OXIDATION RESISTANCE OF LUBRICANT WITH MODIFIED EPOXIDE-BASED LINKAGES CHAU, LISA N 12d
18233697 THREE-DIMENSIONAL MEMORY DEVICE INCLUDING A METAL OXIDE ETCH STOP LAYER AND METHODS FOR FORMING THE SAME LI, MEIYA 14d
19237544 LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF AGUSTIN, PETER VINCENT 50d
18343173 REDUCING DATA COMMUNICATIONS IN DISTRIBUTED INFERENCE SCHEMES PHAM, JESSICA THUY 55d
19359379 Reduction Of High Tape Contact Pressure Points Against Head Assembly KLIMOWICZ, WILLIAM JOSEPH —
19221385 HARD DISK DRIVE SUSPENSION FINE ACTUATOR WITH MINIATURIZED SINGLE-LAYER PIEZOELECTRIC ELEMENTS KLIMOWICZ, WILLIAM JOSEPH —
19042284 MAGNETIC RECORDING MEDIA/DISKS AND METHODS AND APPARATUS FOR IDENTIFYING MAGNETIC RECORDING MEDIA/DISKS SUITABLE FOR DATA STORAGE DEVICES KLIMOWICZ, WILLIAM JOSEPH —

Interview Candidates (20)

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
18666635 OXIDATION RESISTANCE OF LUBRICANT WITH MODIFIED EPOXIDE-BASED LINKAGES CHAU, LISA N 12d
18757954 MAGNETIC RECORDING MEDIA WITH SMALL RECORDING GRAIN SIZES, HIGH ASPECT RATIO, AND METHODS OF FABRICATING SAME CHAU, LINDA N 39d
18890207 Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof KLIMOWICZ, WILLIAM JOSEPH 46d
19237544 LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF AGUSTIN, PETER VINCENT 50d
19359379 Reduction Of High Tape Contact Pressure Points Against Head Assembly KLIMOWICZ, WILLIAM JOSEPH —
19244507 Magnetic Recording Head with A Cross-Track Current Flow In A Low Resistance Path KLIMOWICZ, WILLIAM JOSEPH —
19227025 HARD DISK DRIVE INTERPOSE SWAGE KLIMOWICZ, WILLIAM JOSEPH —
19221385 HARD DISK DRIVE SUSPENSION FINE ACTUATOR WITH MINIATURIZED SINGLE-LAYER PIEZOELECTRIC ELEMENTS KLIMOWICZ, WILLIAM JOSEPH —

Top Art Units

Art UnitApps
2688 14
1785 5
2817 3
2897 3
2813 2
2811 2
1795 1
3729 1
2812 1
1737 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19359379 Reduction Of High Tape Contact Pressure Points Against Head Assembly KLIMOWICZ, WILLIAM JOSEPH 2688 §102§103 Non-Final OA — Pending Oct 15, 2025
19244507 Magnetic Recording Head with A Cross-Track Current Flow In A Low Resistance Path KLIMOWICZ, WILLIAM JOSEPH 2688 §102 Non-Final OA — Pending Jun 20, 2025
19237544 LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF AGUSTIN, PETER VINCENT 2688 §101DP Final Rejection 50d Pending Jun 13, 2025
19227025 HARD DISK DRIVE INTERPOSE SWAGE KLIMOWICZ, WILLIAM JOSEPH 2688 §103 Non-Final OA — Pending Jun 03, 2025
19221385 HARD DISK DRIVE SUSPENSION FINE ACTUATOR WITH MINIATURIZED SINGLE-LAYER PIEZOELECTRIC ELEMENTS KLIMOWICZ, WILLIAM JOSEPH 2688 §102§103 Non-Final OA — Pending May 28, 2025
19201452 Middle Shields Two-Dimensional Magnetic Recording Read Heads KLIMOWICZ, WILLIAM JOSEPH 2688 §103 Final Rejection — Pending May 07, 2025
19076557 SUSPENSION ARM AND SLIDER CONTACT FOR MAGNETIC STORAGE DEVICE KLIMOWICZ, WILLIAM JOSEPH 2688 DP Non-Final OA — Pending Mar 11, 2025
19056508 Low Magnetostriction Material For Read Sensors KIM, MICHELLE JINJU 2688 §103 Final Rejection — Pending Feb 18, 2025
19042284 MAGNETIC RECORDING MEDIA/DISKS AND METHODS AND APPARATUS FOR IDENTIFYING MAGNETIC RECORDING MEDIA/DISKS SUITABLE FOR DATA STORAGE DEVICES KLIMOWICZ, WILLIAM JOSEPH 2688 §102§103 Non-Final OA — Pending Jan 31, 2025
19041235 Shunt Reducing Migration Barrier Layer Materials and Insertion Techniques for Epitaxial Topological Materials RENNER, CRAIG A 2688 §102 Non-Final OA — Pending Jan 30, 2025
18956203 THERMO-MECHANICAL-OPTICAL BONDING OF LUBRICANTS TO CARBON OVERCOAT OF MAGNETIC RECORDING MEDIA CHAU, LISA N 1785 §102§103§112 Final Rejection — Pending Nov 22, 2024
18890207 Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof KLIMOWICZ, WILLIAM JOSEPH 2688 §103 Non-Final OA 46d Pending Sep 19, 2024
18830299 INTER-COVER PLACEMENT OF GAS-PRODUCING SUBSTANCES IN DATA STORAGE DEVICES KLIMOWICZ, WILLIAM JOSEPH 2688 §103 Non-Final OA — Pending Sep 10, 2024
18757954 MAGNETIC RECORDING MEDIA WITH SMALL RECORDING GRAIN SIZES, HIGH ASPECT RATIO, AND METHODS OF FABRICATING SAME CHAU, LINDA N 1785 §103 Final Rejection 39d Pending Jun 28, 2024
18749413 Dual Free Layer TMR Reader with Shaped Rear Bias and Methods of Forming Thereof KLIMOWICZ, WILLIAM JOSEPH 2688 §103§112 Final Rejection — Pending Jun 20, 2024
18666635 OXIDATION RESISTANCE OF LUBRICANT WITH MODIFIED EPOXIDE-BASED LINKAGES CHAU, LISA N 1785 §112 Final Rejection 12d Pending May 16, 2024
18656812 MEDIA LUBRICANTS SYNTHESIS WITH CLICK CHEMISTRY CHAU, LISA N 1785 §103§112 Final Rejection — Pending May 07, 2024
18646016 THREE-DIMENSIONAL MEMORY DEVICE WITH PILLAR SHAPED TRENCH BRIDGE STRUCTURES AND METHODS OF FORMING THE SAME MCDONALD, JASON ANDREW — §102§103 Non-Final OA — Pending Apr 25, 2024
18593481 HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA HAVING MORE THERMALLY STABLE END GROUPS CHAU, LISA N 1785 §103§112 Final Rejection — Pending Mar 01, 2024
18523129 THREE-DIMENSIONAL MEMORY DEVICE WITH VARIABLE WORD LINE VIA CONTACT DENSITY AS FUNCTION OF CONTACT DEPTH AND METHODS OF FORMING THE SAME CRITE, ANTONIO B 2817 §103§112 Non-Final OA — Pending Nov 29, 2023
18508638 THREE-DIMENSIONAL MEMORY DEVICE CONTAINING LATERALLY UNDULATING ISOLATION TRENCHES AND METHODS OF MAKING THE SAME AHMED, SHAHED 2813 §103 Non-Final OA — Pending Nov 14, 2023
18509051 BONDING STRUCTURES FOR HIGH-DENSITY METAL-TO-METAL BONDING AND METHODS FOR FORMING THE SAME MEHTA, RATISHA 2817 §102Other Final Rejection 41d Pending Nov 14, 2023
18509010 BONDING STRUCTURES FOR HIGH-DENSITY METAL-TO-METAL BONDING AND METHODS FOR FORMING THE SAME LOPEZ, JORGE ANDRES 2897 §103 Non-Final OA — Pending Nov 14, 2023
18499024 NUCLEIC ACID SEQUENCING USING NANOPORES SUN, CAITLYN MINGYUN 1795 §102§103 Non-Final OA — Pending Oct 31, 2023
18238952 INTERPOSER FOR TROUBLESHOOTING A BALL GRID ARRAY (BGA) DEVICE AND COUPLING THE BGA DEVICE TO A PRINTED CIRCUIT BOARD WITH LIMITED HEAT EXPOSURE CAZAN, LIVIUS RADU 3729 §103 Final Rejection 46d overdue Pending Aug 28, 2023
18455988 THREE-DIMENSIONAL MEMORY DEVICE WITH THROUGH-STACK CONTACT VIA STRUCTURES AND METHOD OF MAKING THE SAME RAMALLO, GUSTAVO G 2812 §102§112 Non-Final OA — Pending Aug 25, 2023
18451206 PHOTOLITHOGRAPHY METHOD USING CASTELLATION SHAPED ASSIST FEATURES TO FORM A LINE-AND-SPACE PATTERN AND PHOTOMASK CONTAINING THE ASSIST FEATURES LIN, ARIC 1737 §102§103 Non-Final OA — Pending Aug 17, 2023
18450150 THREE-DIMENSIONAL MEMORY DEVICE INCLUDING TRENCH BRIDGE STRUCTURES HAVING DIFFERENT VOLUMES AND METHODS OF FORMING THE SAME WEILAND, ADAM DAVID 2813 §102 Final Rejection 10d overdue Pending Aug 15, 2023
18233697 THREE-DIMENSIONAL MEMORY DEVICE INCLUDING A METAL OXIDE ETCH STOP LAYER AND METHODS FOR FORMING THE SAME LI, MEIYA 2811 §103§112 Non-Final OA 14d Pending Aug 14, 2023
18448398 Exposed Physical Partitions in Solid-State Storage Devices PATEL, KAUSHIKKUMAR M 2138 §112 Final Rejection — Pending Aug 11, 2023
18229489 MEMORY DEVICE INCLUDING HAFNIUM OR ZIRCONIUM OXIDE CONTAINING BLOCKING DIELECTRIC AND TUNGSTEN NITRIDE BARRIER AND METHODS OF FORMING THE SAME VU, HUNG K 2897 §103§112 Final Rejection — Pending Aug 02, 2023
18361575 THREE-DIMENSIONAL MEMORY DEVICE CONTAINING OVERLYING THIN FILM TRANSISTOR CONTROL CIRCUIT AND METHOD OF MAKING THEREOF YUSHINA, GALINA G 2811 §103§112Other Final Rejection 9d Pending Jul 28, 2023
18361118 Semiconductor Device Package with Coupled Substrates BRASFIELD, QUINTON A 2814 §103 Final Rejection 30d Pending Jul 28, 2023
18226199 FOCUSED TESTING AND VERIFICATION OF CIRCUIT DESIGNS USING HARDWARE DESCRIPTION LANGUAGE SIMULATION BOWERS, BRANDON — §102§103 Non-Final OA — Pending Jul 25, 2023
18358768 CROSS-POINT OVONIC FRUSTUM MEMORY DEVICE AND METHOD OF MAKING THE SAME ADROVEL, WILLIAM 2898 §103 Final Rejection 4d overdue Pending Jul 25, 2023
18356110 GENERATING AND UPDATING SOFT INFORMATION FOR DNA-BASED STORAGE SYSTEMS SMITH, JENNIFER JOY — §101§102§103§112 Non-Final OA — Pending Jul 20, 2023
18355064 Multiple Neural Network Training Nodes in a Read Channel ROSTAMI, MOHAMMAD S 2154 §103 Final Rejection 6d Pending Jul 19, 2023
18347404 SEMICONDUCTOR DEVICE INCLUDING METAL INTERCONNECT STRUCTURES THAT CONTAIN SELECTIVELY-GROWN DIELECTRIC SPACERS AND METHODS FOR FORMING THE SAME LEE, DA WEI 2817 §103 Final Rejection 28d Pending Jul 05, 2023
18347371 THREE-DIMENSIONAL MEMORY DEVICE INCLUDING DISCRETE CHARGE STORAGE ELEMENTS AND METHODS OF MAKING THEREOF KIM, JAHAE 2897 §103§112 Non-Final OA — Pending Jul 05, 2023
18343173 REDUCING DATA COMMUNICATIONS IN DISTRIBUTED INFERENCE SCHEMES PHAM, JESSICA THUY 2121 §101§102§103§112 Non-Final OA 55d Pending Jun 28, 2023
18128862 PIVOT-TO-ENCLOSURE FASTENING FOR REDUCING TORSIONAL VIBRATION OF ACTUATOR COIL IN HARD DISK DRIVE KIM, MICHELLE JINJU 2688 §102§103 Non-Final OA — Pending Mar 30, 2023
18161209 Management of Storage Devices Utilizing Non-Fungible Tokens WORKU, SARON MATTHEWOS 2408 §103 Non-Final OA 8d overdue Pending Jan 30, 2023
18160974 Optimizing Chia Plotting Storage and Memory Space DE LA GARZA, CARLOS HEBERTO — §102§103§112 Non-Final OA — Pending Jan 27, 2023
18004402 SINGLE-MOLECULE, REAL-TIME, LABEL-FREE DYNAMIC BIOSENSING WITH NANOSCALE MAGNETIC FIELD SENSORS MARCSISIN, ELLEN JEAN 1677 §101§112 Final Rejection — Pending Jan 05, 2023

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