ExamPat

Deandra M Hughes

USPTO Patent Examiner·Active 2012 to 2026

Deandra M Hughes is a USPTO patent examiner who has handled 67 ex parte reexaminations between 2012 and 2026, with 16 currently open. These reexams concentrate in Physics & Instruments, Mechanical Engineering, and Electrical & Electronic. ExamPat indexes the full prosecution record for each of these cases, including office-action grounds, certificate outcomes, and downstream PTAB and federal-circuit decisions.

Filings by year

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12
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14
1
15
2
16
2
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1
18
2
19
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20
7
21
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22
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26

Technology mix

Physics & Instruments30 (45%)
Mechanical Engineering15 (22%)
Electrical & Electronic14 (21%)
Life Sciences & Consumer4 (6%)
Mechanical & Manufacturing4 (6%)

Compare against all examiners

Eight side-by-side metrics: case volume, pendency, OAs per reexam, rejection mix, SNQ denial rate, certification rate, and PTAB appeal rate, with a Δ column showing where this examiner runs higher or lower than the corpus.

  • Average and median pendency, both for this examiner and the corpus
  • Rejection basis split (102 / 103 / 112) head-to-head
  • Certification, SNQ denial, and PTAB appeal rates

Certificate outcome distribution

How this examiner's certificates split across the six possible outcomes: all claims confirmed, confirmed with amendment, confirmed with new claims, mixed, or all claims canceled. Includes share comparison to the corpus distribution.

  • Count and share for each of the six outcome buckets
  • Δ vs. corpus distribution in percentage points
  • Useful for setting realistic patent-owner expectations

Event-to-event timing

Median time for this examiner's cases at each prosecution stage, from filing to first office action, filing to NIRC, and filing to certificate, with corpus comparison and sample size.

  • Median in months per transition
  • Side-by-side with the corpus median
  • n column showing how many of this examiner's cases completed each transition

vs. all examiners

Certificate outcome distribution

Event-to-event timing (median)

Recent reexaminations (showing 25 of 67)

View all in dashboard →
Control #FiledPatentTitlePendencyStatus
90/016,307Jun 11, 202610,612,726Lighting System for Color Mixing—Open
90/016,364Jun 1, 20269,310,049Lighting System for Growing Plants—Open
90/016,310May 19, 20269,322,530LIGHT SOURCE DEVICE—Open
90/016,290May 15, 202612,232,313STAIRCASE STRUCTURE IN THREE-DIMENSIONAL MEMORY DEVICE AND METHOD FOR FORMING THE SAME—Open
90/016,225Apr 30, 202610,788,690OPTICAL ISOLATOR ARRAY FOR USE IN AN OPTICAL SUBASSEMBLY MODULE—Open
90/016,195Apr 18, 20269,766,801IN-CAR INFORMATION SYSTEM, IN-CAR DEVICE, AND INFORMATION TERMINAL—Open
90/016,146Apr 3, 20268,588,949Method and Apparatus for Adjusting Volume Levels in a Multi-Zone System—Closed
90/016,092Mar 25, 20269,651,320ICT EQUIPMENT—Closed
90/016,065Mar 19, 20268,198,686SEMICONDUCTOR DEVICE—Closed
90/015,920Feb 10, 202610,627,562ILLUMINATION SYSTEM USING EDGE-LIT WAVEGUIDE AND MICROSTRUCTURED SURFACES—Closed
90/015,843Dec 30, 20258,395,183LIGHT EMITTING APPARATUS—Open
90/015,811Dec 22, 20258,823,048LIGHT EMITTING APPARATUS—Closed
90/015,786Dec 16, 20258,823,048LIGHT EMITTING APPARATUS—Open
90/015,750Dec 3, 20259,953,880SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME—Open
90/015,704Nov 20, 20258,198,686SEMICONDUCTOR DEVICE—Open
90/015,633Oct 24, 20257,922,380LIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME—Open
90/015,598Oct 11, 20258,793,034FEATURE RECOGNITION FOR CONFIGURING A VEHICLE CONSOLE AND ASSOCIATED DEVICES—Open
90/015,464Aug 22, 202510,101,203DEVICE AND METHOD FOR DETECTING LIGHT—Open
90/015,441Aug 9, 202510,330,582FLOW CYTOMETER—Open
90/015,436Aug 7, 20257,400,704HIGH RESOLUTION DIRECT-PROJECTION TYPE X-RAY MICROTOMOGRAPHY SYSTEM USING SYNCHROTRON OR LABORATORY-BASED X-RAY SOURCE—Closed
90/019,947May 2, 202511,879,652DEVICE-REGISTRATION-WORK ASSISTING SYSTEM7 moClosed
90/019,867Feb 26, 20257,987,002ARRANGEMENT FOR DISTRIBUTED MEASUREMENT SYSTEM FOR MEASUREMENT AND SIMULATION IN DISTRIBUTED CONTROL SYSTEMS11 moClosed
90/019,781Dec 18, 202410,021,380FASTER STATE TRANSITIONING FOR CONTINUOUS ADJUSTABLE 3DEEPS FILTER SPECTACLES USING MULTI-LAYERED VARIABLE TINT MATERIALS—Open
90/019,746Nov 26, 202410,838,135EDGE-LIT WAVEGUIDE ILLUMINATION SYSTEMS EMPLOYING PLANAR ARRAYS OF LINEAR CYLINDRICAL LENSES9 moClosed
90/019,567Jul 9, 202411,298,112BIOMONITORING DEVICES, METHODS, AND SYSTEMS FOR USE IN A BATHROOM SETTING12 moClosed

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