Lee E Sanderson
USPTO Patent Examiner·Active 2024 to 2026
Lee E Sanderson is a USPTO patent examiner who has handled 24 ex parte reexaminations between 2024 and 2026, with 19 currently open. These reexams concentrate in Electrical & Electronic, Mechanical & Manufacturing, and Chemistry & Materials. 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
Technology mix
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 (24)
| Control # | Filed | Patent | Title | Pendency | Status |
|---|---|---|---|---|---|
| 90/016,396 | Jun 15, 2026 | 10,252,440 | PROCESSED SLABS, AND SYSTEMS AND METHODS RELATED THERETO | — | Open |
| 90/016,390 | Jun 10, 2026 | 11,233,066 | THREE-DIMENSIONAL MEMORY DEVICE AND METHOD FOR FORMING THE SAME | — | Open |
| 90/016,312 | May 19, 2026 | 11,476,181 | 3D SEMICONDUCTOR DEVICE AND STRUCTURE WITH METAL LAYERS | — | Open |
| 90/016,241 | May 4, 2026 | 8,640,498 | FINING OF BOROALUMINO SILICATE GLASSES | — | Open |
| 90/016,217 | Apr 29, 2026 | 8,642,491 | FINING OF BOROALUMINO SILICATE GLASSES | — | Open |
| 90/016,102 | Mar 30, 2026 | 12,313,528 | CUVETTE FOR ANALYSIS OF LIQUIDS | — | Open |
| 90/016,072 | Mar 23, 2026 | 7,851,394 | FINING OF BOROALUMINO SILICATE GLASSES | — | Closed |
| 90/015,986 | Feb 24, 2026 | 8,338,909 | TWO-STEP STI FORMATION PROCESS | — | Open |
| 90/015,928 | Feb 3, 2026 | 7,439,623 | SEMICONDUCTOR DEVICE HAVING VIA CONNECTING BETWEEN INTERCONNECTS | — | Open |
| 90/015,929 | Feb 3, 2026 | 7,632,751 | SEMICONDUCTOR DEVICE HAVING VIA CONNECTING BETWEEN INTERCONNECTS | — | Open |
| 90/015,798 | Dec 19, 2025 | 9,130,074 | HIGH-EFFICIENCY SOLAR CELL STRUCTURES AND METHODS OF MANUFACTURE | — | Open |
| 90/015,783 | Dec 15, 2025 | 9,130,074 | HIGH-EFFICIENCY SOLAR CELL STRUCTURES AND METHODS OF MANUFACTURE | — | Open |
| 90/015,753 | Dec 3, 2025 | 9,093,473 | METHOD FOR FABRICATING METAL-OXIDE SEMICONDUCTOR TRANSISTOR | — | Open |
| 90/015,658 | Nov 4, 2025 | 8,961,630 | METHODS OF FORMING CUTTING ELEMENTS BY REMOVING METAL FROM INTERSTITIAL SPACES IN POLYCRYSTALLINE DIAMOND | — | Open |
| 90/015,558 | Sep 30, 2025 | 10,427,443 | LITHOGRAPHIC PRINTING PLATE PRECURSOR, METHOD OF PREPARING LITHOGRAPHIC PRINTING PLATE, AND LITHOGRAPHIC PRINTING METHOD | — | Open |
| 90/015,524 | Sep 23, 2025 | 10,525,696 | LITHOGRAPHIC PRINTING PLATE PRECURSOR, LITHOGRAPHIC PRINTING PLATE MANUFACTURING METHOD, PRINTING METHOD AND ALUMINUM SUPPORT MANUFACTURING METHOD | — | Open |
| 90/015,480 | Aug 26, 2025 | 9,029,063 | NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS | — | Open |
| 90/015,331 | Jun 17, 2025 | 9,178,465 | Photovoltaic Roofing Elements Including Tie Layer Systems And Roofs Using Them | — | Open |
| 90/015,332 | Jun 17, 2025 | 8,375,653 | PHOTOVOLTAIC ROOFING ELEMENTS INCLUDING TIE LAYER SYSTEMS | — | Open |
| 90/015,330 | Jun 17, 2025 | 8,438,796 | PHOTOVOLTAIC ROOFING ELEMENTS INCLUDING TIE LAYER SYSTEMS, AND ROOFS USING THEM, AND METHODS FOR MAKING THEM | — | Open |
| 90/019,684 | Sep 26, 2024 | 11,527,339 | METHOD OF MANUFACTURING ELECTRICAL CABLE, AND RESULTING PRODUCT, WITH REDUCED REQUIRED INSTALLATION PULLING FORCE | 13 mo | Closed |
| 90/019,666 | Sep 17, 2024 | 10,775,376 | Methods for Assaying Cellular Binding Interactions | 15 mo | Closed |
| 90/019,570 | Jul 4, 2024 | 11,842,827 | METHOD OF MANUFACTURING ELECTRICAL CABLE, AND RESULTING PRODUCT, WITH REDUCED REQUIRED INSTALLATION PULLING FORCE | 15 mo | Closed |
| 90/019,470 | Apr 4, 2024 | 10,964,987 | SEPARATOR AND ENERGY STORAGE DEVICE | 23 mo | Closed |
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