ExamPat

Lee E Sanderson

USPTO Patent Examiner·Active 2024 to 2026

Lee E Sanderson is a USPTO patent examiner who has handled 28 ex parte reexaminations between 2024 and 2026, with 18 currently open. These reexams concentrate in Electrical & Electronic, Chemistry & Materials, and Mechanical & Manufacturing. 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

4
24
10
25
14
26

Technology mix

Electrical & Electronic14 (50%)
Chemistry & Materials5 (18%)
Mechanical & Manufacturing4 (14%)
Physics & Instruments3 (11%)
Life Sciences & Consumer2 (7%)

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 28)

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Control #FiledPatentTitlePendencyStatus
90/016,629Sep 30, 202611,957,271METHOD OF GENERATING A DESIRED TEMPERATURE OF AN INFUSED BEVERAGE WITHIN A BREWING ASSEMBLY—Open
90/016,605Sep 18, 202612,668,505Filter Cartridge and Water Filter Device—Open
90/016,563Sep 3, 20269,512,025METHODS AND APPARATUSES FOR REDUCING HEAT LOSS FROM EDGE DIRECTORS—Open
90/016,396Jun 15, 202610,252,440PROCESSED SLABS, AND SYSTEMS AND METHODS RELATED THERETO—Open
90/016,390Jun 10, 202611,233,066THREE-DIMENSIONAL MEMORY DEVICE AND METHOD FOR FORMING THE SAME—Open
90/016,312May 19, 202611,476,1813D SEMICONDUCTOR DEVICE AND STRUCTURE WITH METAL LAYERS—Open
90/016,241May 4, 20268,640,498FINING OF BOROALUMINO SILICATE GLASSES—Open
90/016,217Apr 29, 20268,642,491FINING OF BOROALUMINO SILICATE GLASSES—Open
90/016,102Mar 30, 202612,313,528CUVETTE FOR ANALYSIS OF LIQUIDS—Open
90/016,072Mar 23, 20267,851,394FINING OF BOROALUMINO SILICATE GLASSES—Closed
90/015,986Feb 24, 20268,338,909TWO-STEP STI FORMATION PROCESS—Open
90/015,980Feb 20, 202610,772,456DEVICE AND SYSTEM FOR BREWING INFUSED BEVERAGES—Open
90/015,928Feb 3, 20267,439,623SEMICONDUCTOR DEVICE HAVING VIA CONNECTING BETWEEN INTERCONNECTS—Open
90/015,929Feb 3, 20267,632,751SEMICONDUCTOR DEVICE HAVING VIA CONNECTING BETWEEN INTERCONNECTS—Open
90/015,798Dec 19, 20259,130,074HIGH-EFFICIENCY SOLAR CELL STRUCTURES AND METHODS OF MANUFACTURE—Open
90/015,783Dec 15, 20259,130,074HIGH-EFFICIENCY SOLAR CELL STRUCTURES AND METHODS OF MANUFACTURE—Open
90/015,753Dec 3, 20259,093,473METHOD FOR FABRICATING METAL-OXIDE SEMICONDUCTOR TRANSISTOR—Open
90/015,658Nov 4, 20258,961,630METHODS OF FORMING CUTTING ELEMENTS BY REMOVING METAL FROM INTERSTITIAL SPACES IN POLYCRYSTALLINE DIAMOND—Open
90/015,558Sep 30, 202510,427,443LITHOGRAPHIC PRINTING PLATE PRECURSOR, METHOD OF PREPARING LITHOGRAPHIC PRINTING PLATE, AND LITHOGRAPHIC PRINTING METHOD11 moClosed
90/015,524Sep 23, 202510,525,696LITHOGRAPHIC PRINTING PLATE PRECURSOR, LITHOGRAPHIC PRINTING PLATE MANUFACTURING METHOD, PRINTING METHOD AND ALUMINUM SUPPORT MANUFACTURING METHOD12 moClosed
90/015,480Aug 26, 20259,029,063NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS—Open
90/015,330Jun 17, 20258,438,796PHOTOVOLTAIC ROOFING ELEMENTS INCLUDING TIE LAYER SYSTEMS, AND ROOFS USING THEM, AND METHODS FOR MAKING THEM15 moClosed
90/015,331Jun 17, 20259,178,465Photovoltaic Roofing Elements Including Tie Layer Systems And Roofs Using Them16 moClosed
90/015,332Jun 17, 20258,375,653PHOTOVOLTAIC ROOFING ELEMENTS INCLUDING TIE LAYER SYSTEMS15 moClosed
90/019,684Sep 26, 202411,527,339METHOD OF MANUFACTURING ELECTRICAL CABLE, AND RESULTING PRODUCT, WITH REDUCED REQUIRED INSTALLATION PULLING FORCE13 moClosed

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