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| Art Unit: | 1779 — Liquid purification or separation |
|---|---|
| Group: | 1770 — Chemical Apparatus, Separation and Purification, Liquid and Gas Contact Apparatus |
| Classes: |
210 — Liquid purification or separation 209 — Classifying, separating, and assorting solids 423 — Chemistry of inorganic compounds 204 — Chemistry: electrical and wave energy 435 — Chemistry: molecular biology and microbiology 514 — Drug, bio-affecting and body treating compositions 208 — Mineral oils: processes and products 526 — Synthetic resins or natural rubbers -- part of the class 520 series 524 — Synthetic resins or natural rubbers -- part of the class 520 series 534 — Organic compounds -- part of the class 532-570 series |
| Phone: | (571) 270-5952 |
| Email: | clare.perrin@uspto.gov |
| Location: | VA 22314 |
| Title: | Pat Examnr Gen Chem |
| Service: | 14 years |
| Grade: | GS-14 |
| 3-Year Grant rate: | 70% over 305 cases |
|---|---|
| Difficulty: | Harder |
| Difficulty Percentile: | 61st
|
With Examiner Perrin, you have a 70% chance of getting an issued patent by 3 years after the first office action. Examiner Perrin is a harder examiner and in the 61st percentile across all examiners (with 100th percentile most difficult).
Below is the grant rate timeline for Examiner Perrin, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.
Examiner Perrin's grant rate is higher than that of Art Unit 1779 and lower than that of the USPTO.
| Average Office Actions Per Grant | |
|---|---|
| Examiner Perrin | 1.7 |
| Art Unit 1779 | 1.8 |
Examiner Perrin has granted 146 of 228 cases without any applicant-requested interviews for a grant rate of 64%.
Examiner Perrin has granted 66 of 77 cases with at least one applicant-requested interview for a grant rate of 86%.
With Examiner Perrin, conducting an interview increases your chance of getting a patent granted by 34%.
| Number | Title | OA Rejections | Status | IFW |
|---|---|---|---|---|
| 18624730 | Sustainable Hybrid Composite Made From Biodegradable Polymer Reinforced With Extracted Powder Compound From Reject Brine (Epc-Rb) | Rejection information available with a Premium Stats subscription. See our pricing. | Patented | View |
| 17530044 | Submersible System For Production Of A Stabilized Gas Flux | Patented | View | |
| 18224784 | Modified Nanoscale Zero-Valent Iron (Nzvi) And Preparation Method And Application Thereof | Patented | View | |
| 18280819 | Method Of Removing A Uranium Source From A Water | Patented | View | |
| 18548086 | Method For Removing Silicon Powder In Coolant For Monocrystalline Silicon Slicing With Diamond Wire | Patented | View | |
| 18245117 | Water Treatment Method, Water Treatment System, Carbonized Combustion Material, And Method For Producing Carbonized Combustion Material | Patented | View | |
| 17782752 | Blood Treatment Systems | Patented | View | |
| 17389321 | Method And Appartus For Producing Hydroxyl Radicals | Patented | View | |
| 17990560 | Method Of Separating Waste Into Bio-Available Components | Patented | View | |
| 19271627 | Calcium Metaborate/lead Tetroxide/magnesium Borate/carbon Nanocomposite And Method Of Preparation | Patented | View | |
| 18008812 | Process For The Removal Of Heavy Metals From A Phosphoric Acid Containing Composition Using A Flocculating Agent | Patented | View | |
| 18008827 | Process For The Removal Of Heavy Metals From A Phosphoric Acid Containing Composition | Patented | View | |
| 18008880 | Process For The Removal Of Heavy Metals From A Phosphoric Acid Containing Composition Using An Ionic Polymeric Surfactant And Use Of Said Surfactant In The Precipitation Of Heavy Metals In A Phosphoric Acid Containing Composition | Patented | View | |
| 18249755 | Compositions Comprising Cyclodextrin For Treatment Of Waste | Abandoned | View | |
| 18130344 | Combination Of Cationic Polyacrylamide And Xanthan As Flocculation Agents For Harmful Algal Blooms | Abandoned | View | |
| 18430234 | 3d Printed Filter Center Tube | Patented | View | |
| 18008849 | Method For Treating Solid Hazardous Heavy Metal-Containing Compositions | Patented | View | |
| 17795041 | Water Treatment Agent | Abandoned | View | |
| 17791695 | Ceramic Joint Body, Method For Manufacturing Ceramic Joint Body, Stator For Flow Channel Switching Valve, And Flow Channel Switching Valve | Patented | View | |
| 17770270 | Methods And Compositions For Remediating Cyanuric Acid In Aqueous Liquids | Patented | View | |
| 19250391 | Particulate Crystalline Nanocomposite As A Sorbent For Wastewater Treatment | Patented | View | |
| 18438494 | Biodegrading Recalcitrant To Biodegradation Organic Substances | Abandoned | View | |
| 19250482 | Particulate Crystalline Nanocomposite And Adsorbent | Patented | View | |
| 18007060 | Supplemental Demulsifier Additive | Abandoned | View | |
| 19071548 | System For Coprocessing Oil Drilling Waste | Patented | View | |
| 19074652 | Nanocomposites For Photodegradation Of Contaminants | Patented | View | |
| 17938983 | Sodium Petroleum Sulfonate Collector For Fluorite Flotation And Its Preparation And Application Method | Patented | View | |
| 17307130 | Sorbent Manifold For A Dialysis System | Patented | View | |
| 17488311 | Amine Functionalized Chitin For Removing Substances From Solutions | Abandoned | View | |
| 17909470 | Device And Method For Treating A Flow Of Water | Patented | View | |
| 19213204 | Nanocomposite For The Immobilization Or Degradation Of Pollutants | Patented | View | |
| 19229124 | Water Treatment Apparatus | Patented | View | |
| 19031604 | Ocean Alkalinity Release Apparatus And Method | Patented | View | |
| 18826568 | Method For Making Bentonite/natural Fiber Nanocomposite | Patented | View | |
| 18165091 | Cross-Linked Polymeric Ammonium Salts And Their Use In Absorbing Organic Contaminants | Patented | View | |
| 17795132 | Magnetic Link Belt System For Clarifying Water | Abandoned | View | |
| 17848878 | Low Temperature Decontamination Of Tritiated Water | Patented | View | |
| 17863243 | Sodium Nitrite Oxidation Of Hydrogen Sulfide | Patented | View | |
| 18870444 | Wastewater Treatment Process In Production Of Nickel Cobalt Hydroxide | Patented | View | |
| 17795256 | Water Treatment Agent | Abandoned | View | |
| 17764940 | Hypochlorite Compositions, Methods Of Manufacture And Uses Thereof | Patented | View | |
| 18045743 | Deposition Of Flocculated Tailings | Patented | View | |
| 18967050 | Method Of Purification And Purified Products | Patented | View | |
| 17954865 | Fe-Co Core Shell Nanospheres | Patented | View | |
| 17414862 | Systems And Methods For Fuel Tank Draining And Polishing | Patented | View | |
| 16635680 | Cold Treatment | Patented | View | |
| 17618497 | Tablets, Methods And Devices For Treating Contaminated Water | Abandoned | View | |
| 18776678 | Synergistic Green Sorption Media For Cyanobacterial Toxin Remediation | Patented | View | |
| 18126284 | Composite Media For Fuel Streams | Patented | View | |
| 17643477 | Mysx/zsh Mixture As Sulfidizing Agent | Patented | View |
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