Krisanne Marie Jastrzab
USPTO Patent Examiner·Active 2012 to 2024
Krisanne Marie Jastrzab is a USPTO patent examiner who has handled 32 ex parte reexaminations between 2012 and 2024. These reexams concentrate in Mechanical & Manufacturing, Chemistry & Materials, and Physics & Instruments. 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
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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 — 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
Recent reexaminations (showing 25 of 32)
| Control # | Filed | Patent | Title | Pendency | Status |
|---|---|---|---|---|---|
| 90/019,373 | Jan 11, 2024 | 11,554,644 | AIR PURIFICATION APPARATUS FOR VEHICLE | 6 mo | Closed |
| 90/015,237 | May 22, 2023 | 11,634,781 | FECAL SAMPLE PROCESSING AND ANALYSIS COMPRISING DETECTION OF BLOOD | 6 mo | Closed |
| 90/019,098 | Jul 15, 2022 | 10,175,225 | Blood Testing System and Method | 14 mo | Closed |
| 90/014,918 | Dec 7, 2021 | 10,753,626 | AIR TREATMENT UNIT | 7 mo | Closed |
| 90/014,878 | Oct 7, 2021 | 10,870,898 | STAVE COOLER WITH COMMON COOLANT COLLAR | 18 mo | Closed |
| 90/014,538 | Jun 26, 2020 | 9,732,317 | HIGHLY EFFICIENT GAS PERMEABLE DEVICES AND METHODS FOR CULTURING CELLS | 28 mo | Closed |
| 90/014,540 | Jun 26, 2020 | 9,441,192 | CELL CULTURE METHODS AND DEVICES UTILIZING GAS PERMEABLE MATERIALS | 16 mo | Closed |
| 90/014,374 | Oct 14, 2019 | 10,343,233 | SPOT WELDING CAP CHANGER | 12 mo | Closed |
| 90/014,361 | Aug 9, 2019 | 8,603,610 | Edge Trim For Pieces of Furniture | 16 mo | Closed |
| 90/014,313 | Jun 13, 2019 | 8,551,598 | ARMORING PANEL FOR RESISTING EDGE IMPACT PENETRATIONS BY BALLISTIC PROJECTILES | 25 mo | Closed |
| 90/014,287 | Apr 16, 2019 | 6,651,864 | Dissipative Ceramic Bonding Tool Tip | 28 mo | Closed |
| 90/014,228 | Nov 1, 2018 | 7,124,927 | Flip Chip Bonding Tool and Ball Placement Capillary | 29 mo | Closed |
| 90/014,123 | Apr 12, 2018 | 7,951,346 | Methods And Systems For Reducing Particulate Matter In A Gaseous Stream | 12 mo | Closed |
| 90/014,108 | Mar 12, 2018 | 5,451,558 | Process For The Reaction And Absorption Of Gaseous Air Pollutants, Apparatus Therefor And Method Of Making The Same | 12 mo | Closed |
| 90/014,045 | Nov 6, 2017 | 8,822,148 | METHOD OF PERFORMING PCR REACTION IN CONTINUOUSLY FLOWING MICROFLUIDIC PLUGS | 12 mo | Closed |
| 90/014,042 | Nov 2, 2017 | 8,329,407 | A METHOD FOR CONDUCTING REACTIONS INVOLVING BIOLOGICAL MOLECULES IN PLUGS IN A MICROFLUIDIC SYSTEM | 12 mo | Closed |
| 90/013,871 | Dec 6, 2016 | 8,231,824 | METHOD AND DEVICE FOR PRODUCING A DOUBLEWALLED THERMOPLASTIC CORRUGATED PIPE HAVING A CONNECTING SLEEVE | 8 mo | Closed |
| 90/013,865 | Nov 28, 2016 | 8,512,512 | SYSTEM AND METHOD FOR PREEXTRACTION OF HEMICELLULOSE THROUGH USING A CONTINUOUS PREHYDROLYSIS AND STEAM EXPLOSION PRETREATMENT PROCESS | 13 mo | Closed |
| 90/013,835 | Oct 17, 2016 | 7,390,340 | FILTRATION APPARATUS | 56 mo | Closed |
| 90/013,836 | Oct 17, 2016 | 7,896,959 | FILTRATION APPARATUS | 58 mo | Closed |
| 90/013,759 | Jun 2, 2016 | 9,180,140 | PERFORMANCE ENHANCING COMPOSITION AND USE THEREOF | 16 mo | Closed |
| 90/013,656 | Dec 10, 2015 | 9,169,099 | LONG MEDIUM | 7 mo | Closed |
| 90/013,546 | Jul 8, 2015 | 8,251,997 | Method for Inserting an Artificial Implant Between Two Adjacent Vertebrae Along a Coronal Plane | — | Closed |
| 90/013,318 | Aug 13, 2014 | 7,585,349 | METHODS OF NANOSTRUCTURE FORMATION AND SHAPE SELECTION | 31 mo | Closed |
| 90/013,077 | Jan 13, 2014 | 6,582,614 | NON-FERROUS/FERROMAGNETIC LAMINATED GRAPHICS ARTS IMPRESSION DIES AND METHOD OF PRODUCING SAME | 30 mo | Closed |
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