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| Art Unit: | 1773 — 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 204 — Chemistry: electrical and wave energy 222 — Dispensing 134 — Cleaning and liquid contact with solids 131 — Tobacco 426 — Food or edible material: processes, compositions, and products 521 — Synthetic resins or natural rubbers -- part of the class 520 series 700 — Data processing: generic control systems or specific applications 237 — Heating systems |
| Phone: | (571) 272-9627 |
| Email: | akash.varma@uspto.gov |
| Location: | VA 22314 |
| Title: | Pat Examnr Cheml Engrg |
| Service: | 12 years |
| Grade: | GS-14 |
| 3-Year Grant rate: | 64% over 290 cases |
|---|---|
| Difficulty: | Harder |
| Difficulty Percentile: | 68th
|
With Examiner Varma, you have a 64% chance of getting an issued patent by 3 years after the first office action. Examiner Varma is a harder examiner and in the 68th percentile across all examiners (with 100th percentile most difficult).
Below is the grant rate timeline for Examiner Varma, 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 Varma's grant rate is lower than that of Art Unit 1773 and lower than that of the USPTO.
| Average Office Actions Per Grant | |
|---|---|
| Examiner Varma | 2.0 |
| Art Unit 1773 | 1.4 |
Examiner Varma has granted 128 of 220 cases without any applicant-requested interviews for a grant rate of 58%.
Examiner Varma has granted 59 of 70 cases with at least one applicant-requested interview for a grant rate of 84%.
With Examiner Varma, conducting an interview increases your chance of getting a patent granted by 45%.
| Number | Title | OA Rejections | Status | IFW |
|---|---|---|---|---|
| 18261908 | Filter Press With Multi-Function Robot For Maintenance, Tracking And Wear Control Of Filtering Septa | Rejection information available with a Premium Stats subscription. See our pricing. | Patented | View |
| 17782821 | Modified Column For Expanded Bed Adsorption And Methods Of Use Thereof | Patented | View | |
| 18277327 | System For In-Line Enrichment Of Liquids | Abandoned | View | |
| 18276445 | Filtering Device For Collecting Debris At The Surface Of Bodies Of Water | Abandoned | View | |
| 18248810 | Water Purifier | Patented | View | |
| 17750445 | Automatic Flushing System For Filters Associated With An Irrigation System | Patented | View | |
| 18118547 | System For Ultrapurification Of Organic Solvent | Abandoned | View | |
| 19077074 | Spray Head | Patented | View | |
| 17601336 | Crossflow Filtration Method, Method For Obtaining At Least One Crossflow Filtration Parameter And System For Obtaining At Least One Crossflow Filtration Parameter | Abandoned | View | |
| 19052231 | Wastewater Treatment Device, Docking Station And Cleaning System | Patented | View | |
| 17553956 | Desalting System For Chromatography | Patented | View | |
| 19193821 | Cleaning Device | Patented | View | |
| 19216169 | Method For Isolating A Heavy Metal Ion From An Aqueous Solution | Patented | View | |
| 17800527 | Dilute Solution Production Apparatus | Patented | View | |
| 17790177 | Cyclone Filter | Patented | View | |
| 18136381 | Apparatus For Protecting Skimmer Pump Lines | Abandoned | View | |
| 18029528 | A Method Performed By A Control Device For Verifying The Performance Of A Uv-Reactor, A Control Device, And A Uv-Reactor | Abandoned | View | |
| 17335300 | Methods For Monitoring Marine Waterbody Sustainability At Discharge Sites | Patented | View | |
| 17358977 | A Device And Method For Converting And Separating At Least One Reactant And A Reaction Product Thereof | Patented | View | |
| 17872672 | Fluid Disinfection Apparatus And Methods | Patented | View | |
| 17771022 | Scaling-Resistant And Yellowing-Resistant Reverse Osmosis Composite Membrane And Preparation Method Thereof | Patented | View | |
| 19216086 | Method For Removing Heavy Metal Ions From Water | Patented | View | |
| 18013800 | Integrated Water And Objects Disinfection Apparatus | Abandoned | View | |
| 18661533 | Filter Device | Patented | View | |
| 17663982 | Methods And Systems For Thermal Fluid Conditioning And Delivery | Patented | View | |
| 17755563 | Methods And Systems For Monitoring Or Controlling Anti-Scalant Concentration | Abandoned | View | |
| 18639492 | Enhanced Foam Removal Of Total Suspended Solids And Multiply Charged Cations From Aqueous Or Aqueous/oil Mixed Phase Via Increased Viscoelasticity | Patented | View | |
| 17253653 | Alkali-Stable Nanofiltration Composite Membrane And Method Of Manufacture Thereof | Patented | View | |
| 17766699 | Surface Modified Polyethersulfone Membranes And Method Of Making Thereof | Patented | View | |
| 17470890 | In-Pond Water Quality Maintenance System | Abandoned | View | |
| 16375252 | System For The Delivery Of Transdermal Nutrients And Gasses | Abandoned | View | |
| 18639529 | Biosolids Quality And Dewaterability | Patented | View | |
| 18140882 | Method And System For The Remediation Of Aquatic Facilities | Patented | View | |
| 17290985 | Spiral Wound Protein Separation Device | Patented | View | |
| 17720269 | Sorption Apparatus | Abandoned | View | |
| 19190876 | Polypropylene Bag Sorbent Device | Patented | View | |
| 17442577 | Device For Treating Liquids By Electromagnetism And Stirring | Patented | View | |
| 16984320 | System And Methods For Automatic Dilution Of Whole Blood To Increase Plasma Clarity | Patented | View | |
| 17001720 | Process Cooling Water System Control Systems And Methods For Iron And Steelmaking Applications | Patented | View | |
| 17621194 | Industrial-Scale Processing Of Cannabis Material | Abandoned | View | |
| 18656688 | Hot Water Cart Conditioning System And Method | Patented | View | |
| 18656518 | Thermomechanochemical Waste Treatment | Patented | View | |
| 18111656 | Method And System For The Remediation Of Aquatic Facilities | Patented | View | |
| 17476463 | Valve Setup For Chromatography And Fluid Management Systems | Patented | View | |
| 17334443 | Separator Monitoring And Control | Patented | View | |
| 18652516 | Low Cost And Sanitary Efficient Method That Creates Two Different Treatment Zones In Large Water Bodies To Facilitate Direct Contact Recreational Activities | Patented | View | |
| 17443956 | Separator Electrical Analysis | Patented | View | |
| 17596386 | Method For Isolating Carboxylic Acid From An Aqueous Side Stream | Abandoned | View | |
| 17243526 | Pool Cleaner | Abandoned | View | |
| 18654819 | Sterile And/or Purified Fluid And/or Solution Delivery System | Patented | View |
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