Detailed information about the 100 most recent patent applications.
| Application Number | Title | Filing Date | Disposal Date | Disposition | Time (months) | Office Actions | Restrictions | Interview | Appeal |
|---|---|---|---|---|---|---|---|---|---|
| 19055486 | SAWTOOTH WAVE IMPELLER TUMBLER | February 2025 | June 2025 | Allow | 4 | 1 | 0 | No | No |
| 19023706 | INGREDIENT BLENDING SYSTEM AND METHOD | January 2025 | April 2025 | Allow | 2 | 0 | 1 | No | No |
| 18936375 | EFFICIENT AND ENERGY-SAVING BUILDING SLURRY STIRRING DEVICE | November 2024 | January 2025 | Allow | 2 | 0 | 0 | No | No |
| 18933918 | Chemical Mixing Spool and Method | October 2024 | January 2025 | Allow | 2 | 1 | 0 | No | No |
| 18934171 | Mixing Device with Rotatable Container | October 2024 | September 2025 | Allow | 11 | 1 | 0 | No | No |
| 18896492 | Chemical Mixing Spool | September 2024 | June 2025 | Abandon | 9 | 1 | 0 | No | No |
| 18889467 | NANOPARTICLE ULTRASONIC DISPERSION DEVICE AND NANOPARTICLE ULTRASONIC DISPERSION METHOD THEREOF | September 2024 | November 2024 | Allow | 2 | 0 | 0 | No | No |
| 18677069 | MIXING FUNNEL | May 2024 | December 2025 | Allow | 19 | 1 | 0 | No | No |
| 18653694 | METHOD FOR DETERMINING PHYSICAL STABILITY OF SUSPENSIONS | May 2024 | November 2024 | Allow | 6 | 0 | 1 | No | No |
| 18649625 | MIXING DRUM | April 2024 | February 2026 | Allow | 22 | 1 | 0 | No | No |
| 18626798 | Automated Blender System | April 2024 | August 2025 | Abandon | 16 | 1 | 0 | No | No |
| 18595126 | Chemical Mixing Spool and Method | March 2024 | April 2025 | Abandon | 14 | 3 | 1 | Yes | No |
| 18438196 | AUTOMATED METHOD AND APPARATUS FOR PREPARING BIOPROCESS SOLUTIONS | February 2024 | April 2025 | Allow | 14 | 2 | 0 | No | No |
| 18517999 | FERROMAGNETIC ROTORS FOR AGITATING THE LIQUID IN A MICROWELL | November 2023 | February 2026 | Allow | 26 | 1 | 1 | No | No |
| 18512965 | Device and Apparatus for Mixing and Dispersing Solid and Liquid | November 2023 | December 2024 | Allow | 13 | 0 | 0 | No | No |
| 18389250 | STIRRING UTENSIL | November 2023 | July 2024 | Allow | 8 | 1 | 1 | No | No |
| 18486937 | MIXING AND DISPERSING APPARATUS | October 2023 | June 2025 | Allow | 20 | 3 | 0 | No | No |
| 18378595 | Homogenizing method and device for mixing cow dung granules into clay bricks | October 2023 | January 2026 | Allow | 27 | 1 | 1 | No | No |
| 18373634 | PAINT STORAGE AND MIXING SYSTEM | September 2023 | April 2025 | Abandon | 18 | 2 | 0 | No | No |
| 18550409 | APPARATUS AND PROCESS FOR PRODUCING NANOCARRIERS AND/OR NANOFORMULATIONS | September 2023 | February 2024 | Allow | 5 | 0 | 0 | No | No |
| 18335023 | NANO CELL BLOCK MODULE FOR HOMOGENIZING A SOLUTION WITH A HIGH PRESSURE | June 2023 | February 2026 | Allow | 32 | 1 | 0 | No | No |
| 18039629 | Hand-Held Housing For Multi-Purpose Food Preparation Appliance | May 2023 | March 2025 | Allow | 21 | 4 | 1 | Yes | No |
| 18196943 | MULTI-SHAFT PREPARATION UNIT FOR PLASTIC MELTS | May 2023 | November 2025 | Allow | 31 | 0 | 0 | No | No |
| 18036447 | STATIC MIXER ASSEMBLIES AND RELATED METHODS OF FABRICATION AND USE | May 2023 | January 2026 | Allow | 32 | 1 | 0 | No | No |
| 18140304 | Wide Speed Range Concrete Monitoring Calibration | April 2023 | August 2024 | Allow | 16 | 0 | 0 | No | No |
| 18300860 | MIXING FUNNEL | April 2023 | February 2024 | Allow | 10 | 2 | 1 | No | No |
| 18191324 | MIXING AND DISPERSING APPARATUS | March 2023 | August 2023 | Allow | 5 | 1 | 0 | No | No |
| 18124348 | KNEADING MACHINE FOR FOOD DOUGHS WITH SEALING OF KNEADING TOOLS | March 2023 | January 2026 | Allow | 34 | 1 | 0 | No | No |
| 18111520 | ROTATING MECHANISM OF HANDICRAFT | February 2023 | September 2025 | Allow | 31 | 0 | 0 | No | No |
| 18154871 | APPARATUS AND METHOD FOR MANUFACTURING SLURRY FOR BATTERY | January 2023 | January 2026 | Allow | 36 | 1 | 1 | No | No |
| 18093174 | SYSTEMS FOR LOCATING A POWER TAKE-OFF COVER OF A STAND MIXER APPLIANCE | January 2023 | September 2025 | Allow | 32 | 0 | 0 | No | No |
| 18092616 | OPTIMIZING DRILLING MUD SHEARING | January 2023 | October 2023 | Abandon | 10 | 1 | 0 | No | No |
| 18092638 | OPTIMIZING DRILLING MUD SHEARING | January 2023 | July 2023 | Allow | 6 | 1 | 0 | No | No |
| 18092595 | Optimizing Drilling Mud Shearing | January 2023 | October 2023 | Abandon | 10 | 0 | 1 | No | No |
| 18085305 | Kneading and mixing device for impacted consumer foodstuff | December 2022 | October 2025 | Allow | 34 | 1 | 0 | No | No |
| 18066055 | DEVICE AND APPARATUS FOR AGITATION OF LIQUID | December 2022 | July 2023 | Allow | 7 | 0 | 1 | No | No |
| 18001440 | AXISYMMETRIC CONFINED IMPINGING JET MIXER | December 2022 | February 2026 | Allow | 38 | 2 | 0 | No | No |
| 18060728 | Methods for Mixing a Fluid with Foldable Impellers | December 2022 | October 2024 | Allow | 23 | 4 | 0 | Yes | No |
| 17992308 | MICRO PUREE MACHINE WITH BOWL AND BLADE DETECTION | November 2022 | August 2023 | Allow | 8 | 1 | 0 | No | No |
| 17986072 | Vibration device with self-adjusting impact bars | November 2022 | August 2025 | Allow | 33 | 2 | 1 | No | No |
| 17924046 | CONTROL OF A FLOW GENERATOR IN A TANK | November 2022 | July 2025 | Allow | 33 | 0 | 0 | No | No |
| 18047427 | AUTOMATED MIXING SYSTEM FOR CARTRIDGES CONTAINING MATERIALS | October 2022 | August 2025 | Allow | 33 | 0 | 1 | No | No |
| 17952509 | Portable Mixing Container | September 2022 | September 2023 | Allow | 12 | 4 | 0 | Yes | No |
| 17945858 | MIXING DEVICE | September 2022 | September 2025 | Allow | 36 | 1 | 0 | No | No |
| 17892610 | TONER PROCESSING APPARATUS AND METHOD FOR PRODUCING TONER | August 2022 | December 2025 | Allow | 40 | 1 | 1 | Yes | No |
| 17884553 | ADJUSTABLE ADDITIVE DELIVERY SYSTEMS AND METHODS | August 2022 | July 2024 | Allow | 23 | 2 | 1 | No | No |
| 17879953 | DEVICE, SYSTEM AND METHOD FOR MIXING | August 2022 | October 2023 | Allow | 14 | 1 | 0 | No | No |
| 17813863 | FOAM PITCHER | July 2022 | December 2025 | Allow | 41 | 1 | 1 | No | No |
| 17843078 | AGITATOR FOR A CARBONATION SYSTEM | June 2022 | January 2023 | Allow | 7 | 2 | 1 | Yes | No |
| 17781563 | Bio-Reaction Stirrer Using Magnetic Force | June 2022 | January 2026 | Abandon | 44 | 1 | 0 | No | No |
| 17779750 | MIXER | May 2022 | January 2026 | Allow | 44 | 2 | 0 | No | No |
| 17778086 | MAGNETIC MIXING APPARATUS | May 2022 | September 2025 | Allow | 40 | 1 | 0 | No | No |
| 17745243 | MIXER AUTONOMY MODE | May 2022 | January 2024 | Allow | 20 | 3 | 1 | No | No |
| 17742207 | Container with Both Dispensation and Fill Dedicated Valved Tube Assemblies | May 2022 | January 2026 | Allow | 45 | 2 | 0 | No | No |
| 17736242 | REVERSIBLE MIXING SHAFT AND ATTACHMENT FOR STAND MIXER | May 2022 | May 2025 | Allow | 37 | 0 | 0 | No | No |
| 17773817 | EMULSIFICATION DEVICE AND EMULSIFICATION METHOD | May 2022 | December 2025 | Abandon | 43 | 0 | 1 | No | No |
| 17720408 | Portable Mixing Container | April 2022 | September 2022 | Allow | 5 | 1 | 1 | No | No |
| 17718408 | NON-CONTACT MAGNETIC COUPLER FOR FOOD PROCESSING APPLIANCE HAVING SMALL BRUSHLESS PERMANENT MAGNET MOTOR | April 2022 | May 2024 | Allow | 25 | 4 | 0 | No | No |
| 17713315 | MICRO PUREE MACHINE | April 2022 | October 2023 | Allow | 18 | 5 | 1 | Yes | No |
| 17712954 | TRANSPORTABLE BLENDING SYSTEM | April 2022 | July 2025 | Allow | 39 | 1 | 0 | No | No |
| 17764160 | STIRRING BODY AND STIRRING DEVICE PROVIDED WITH SAME | March 2022 | October 2025 | Abandon | 43 | 1 | 0 | No | No |
| 17700080 | MIXING DEVICE | March 2022 | January 2026 | Abandon | 46 | 2 | 0 | Yes | No |
| 17694763 | HANDHELD FOOD BLENDER WITH MULTIPLE ATTACHMENTS | March 2022 | December 2025 | Allow | 45 | 4 | 1 | Yes | No |
| 17641587 | PRINT MATERIAL CONTAINER | March 2022 | June 2025 | Allow | 39 | 3 | 1 | No | No |
| 17640264 | MIXER INSERT, STATIC MIXER AND PRODUCTION METHOD | March 2022 | January 2026 | Allow | 47 | 2 | 1 | No | No |
| 17640049 | EXTRUDER HAVING SCREW ELEMENTS WITH A PARTICULARLY LARGE PITCH IN THE REGION OF THE GAS VENTING OPENING, AND USE OF SAID EXTRUDER | March 2022 | May 2025 | Allow | 39 | 1 | 0 | No | No |
| 17682047 | SITU TREATMENT ANALYSIS MIXING SYSTEM | February 2022 | November 2023 | Allow | 20 | 2 | 0 | No | No |
| 17680642 | CONTAINER FOR FOOD PROCESSING SYSTEM | February 2022 | August 2025 | Allow | 42 | 1 | 1 | No | No |
| 17638129 | BLENDER | February 2022 | March 2025 | Allow | 37 | 1 | 0 | No | No |
| 17652253 | Methods and Systems to Control Percent Solids in Conveyance Pipe | February 2022 | August 2025 | Allow | 42 | 1 | 1 | No | No |
| 17676906 | CONCRETE VIBRATOR | February 2022 | May 2025 | Allow | 39 | 2 | 0 | No | No |
| 17673622 | BLENDER WITH ADDRESSABLE BLADES | February 2022 | March 2025 | Allow | 37 | 0 | 1 | No | No |
| 17635336 | ADDITIVELY MANUFACTURED EXTRUDER COMPONENTS | February 2022 | October 2025 | Abandon | 44 | 2 | 0 | Yes | No |
| 17667123 | DEVICES AND METHODS FOR REDUCING THE EFFECTS OF SETTLING OF PARTICLES DURING DROPLET PRODUCTION | February 2022 | June 2025 | Allow | 40 | 1 | 1 | Yes | No |
| 17665512 | Concrete Residue Collection System For Concrete Mixing Trucks | February 2022 | November 2024 | Allow | 33 | 0 | 1 | No | No |
| 17631976 | OUTFLOW UNIT FOR MIXER | February 2022 | January 2026 | Allow | 47 | 4 | 1 | Yes | No |
| 17573526 | APPARATUS FOR REMOVING THERMAL STRATIFICATION GENERATED BY TURBULENT PENETRATION BY USING ROTATION OF INNER RING AND OUTER RING | January 2022 | December 2024 | Allow | 35 | 1 | 0 | No | No |
| 17597523 | HANDY LARGE PROCESSING JUG | January 2022 | January 2025 | Allow | 37 | 1 | 0 | No | No |
| 17564273 | METHOD FOR CONFINED IMPINGING JETS MIXING WITH IMBALANCED MOMENTA | December 2021 | April 2025 | Allow | 39 | 2 | 0 | Yes | No |
| 17560645 | Method and Apparatus for Scraping and Tamping | December 2021 | February 2026 | Abandon | 50 | 3 | 1 | No | No |
| 17557906 | Dough kneading device | December 2021 | August 2025 | Abandon | 44 | 2 | 0 | Yes | No |
| 17549339 | AGITATOR FOR MEASURING PROCESS PARAMETERS IN A WIRELESS AND/OR BATTERY-FREE MANNER | December 2021 | June 2025 | Abandon | 42 | 0 | 1 | No | No |
| 17549445 | FEEDING SCREW MACHINE FOR FEEDING A PROCESSING SCREW MACHINE | December 2021 | June 2025 | Allow | 42 | 2 | 1 | Yes | No |
| 17549670 | DISPENSE SEQUENCE FOR A BEVERAGE MIXTURE DISPENSING SYSTEM | December 2021 | November 2022 | Allow | 11 | 2 | 1 | No | No |
| 17543390 | DEVICE FOR PRODUCING AND CONDITIONING A MULTI-COMPONENT MIXTURE AND METHOD FOR OPERATING A DEVICE OF THIS KIND | December 2021 | September 2025 | Allow | 45 | 2 | 1 | No | No |
| 17542594 | WHIPPING BLADE | December 2021 | July 2025 | Allow | 44 | 7 | 0 | Yes | No |
| 17543368 | DEVICE FOR PRODUCING A MULTI-COMPONENT MIXTURE AND METHOD FOR OPERATING SAID TYPE OF DEVICE | December 2021 | April 2025 | Allow | 40 | 2 | 0 | No | No |
| 17613690 | Mixing Device and Methods For Making Bone Cement | November 2021 | September 2025 | Allow | 46 | 2 | 0 | No | No |
| 17453283 | MIXER SYSTEM FOR A LIQUID CHROMATOGRAPHY SYSTEM | November 2021 | December 2024 | Allow | 38 | 1 | 0 | No | No |
| 17508889 | BLENDER APPARATUS WITH SAFETY INTERLOCK SYSTEM | October 2021 | January 2025 | Allow | 39 | 2 | 0 | No | No |
| 17594560 | Kitchen Appliance and Accessory Element for Sealing a Protective Hood of a Kitchen Appliance | October 2021 | June 2022 | Allow | 7 | 1 | 0 | Yes | No |
| 17504486 | Quantum Fluid Operation: Technology for Effective Mixing, Reacting, and Separating Fluids | October 2021 | April 2023 | Allow | 18 | 4 | 0 | Yes | No |
| 17500058 | INFEED CHUTES FOR MATERIAL APPLICATION MACHINES | October 2021 | May 2023 | Allow | 19 | 1 | 0 | No | No |
| 17479514 | Systems, Methods, and Apparatus for Utilizing a Resuspension Tank | September 2021 | April 2025 | Abandon | 43 | 1 | 0 | No | No |
| 17593002 | PRETREATMENT MIXING AND STIRRING DEVICE, GYPSUM SLURRY MANUFACTURING APPARATUS, BUILDING BOARD MANUFACTURING APPARATUS, PRETREATMENT CALCINED GYPSUM MANUFACTURING METHOD, GYPSUM SLURRY MANUFACTURING METHOD, BUILDING BOARD MANUFACTURING METHOD | September 2021 | October 2025 | Abandon | 49 | 4 | 1 | Yes | No |
| 17464370 | MECHANICAL SYSTEM THAT FLUIDIZES, MIXES, COATS, DRIES, COMBINES, CHEMICALLY REACTS, AND SEGREGATES MATERIALS | September 2021 | June 2023 | Allow | 21 | 1 | 0 | No | No |
| 17435585 | DRUG MIXING DEVICE, DRUG MIXING KIT COMPRISING THE SAME, AND METHOD OF MANUFACTURING THE SAME | September 2021 | June 2025 | Abandon | 46 | 1 | 1 | No | No |
| 17310918 | Continuous Glass Melting Tank With An Immersed Stirring Body | August 2021 | September 2022 | Allow | 12 | 2 | 1 | No | No |
| 17460357 | INTERLOCKING BLENDING SYSTEM | August 2021 | April 2025 | Allow | 44 | 2 | 0 | Yes | No |
| 17398829 | AUTOMATED METHOD AND APPARATUS FOR PREPARING BIOPROCESS SOLUTIONS | August 2021 | November 2023 | Allow | 27 | 1 | 1 | No | No |
This analysis examines appeal outcomes and the strategic value of filing appeals for examiner SORKIN, DAVID L.
With a 22.6% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.
Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.
In this dataset, 16.2% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.
⚠ Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.
⚠ Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.
Examiner SORKIN, DAVID L works in Art Unit 1774 and has examined 1,113 patent applications in our dataset. With an allowance rate of 68.6%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 36 months.
Examiner SORKIN, DAVID L's allowance rate of 68.6% places them in the 30% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.
On average, applications examined by SORKIN, DAVID L receive 1.95 office actions before reaching final disposition. This places the examiner in the 48% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.
The median time to disposition (half-life) for applications examined by SORKIN, DAVID L is 36 months. This places the examiner in the 35% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.
Conducting an examiner interview provides a +2.8% benefit to allowance rate for applications examined by SORKIN, DAVID L. This interview benefit is in the 24% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.
When applicants file an RCE with this examiner, 25.3% of applications are subsequently allowed. This success rate is in the 40% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.
This examiner enters after-final amendments leading to allowance in 30.7% of cases where such amendments are filed. This entry rate is in the 44% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.
When applicants request a pre-appeal conference (PAC) with this examiner, 34.5% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 34% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.
This examiner withdraws rejections or reopens prosecution in 53.7% of appeals filed. This is in the 24% percentile among all examiners. Of these withdrawals, 41.7% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.
When applicants file petitions regarding this examiner's actions, 53.2% are granted (fully or in part). This grant rate is in the 53% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.
Examiner's Amendments: This examiner makes examiner's amendments in 1.8% of allowed cases (in the 73% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).
Quayle Actions: This examiner issues Ex Parte Quayle actions in 12.0% of allowed cases (in the 90% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.
Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:
Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.
No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.
Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.
Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.