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  2. USPTO
  3. TC 1600
  4. Group 1630
  5. Art Unit 1632
  6. Examiner Dhar

Examiner Dhar Matasha

1632-DHAR-MATASHA

Employment Information

Art Unit:1632 — Chemistry: molecular biology and microbiology
Group:1630 — Stem cells and cell culture and Nucleic Acid related therapy
Classes: 435 — Chemistry: molecular biology and microbiology
424 — Drug, bio-affecting and body treating compositions
800 — Multicellular living organisms and unmodified parts thereof and related processes
536 — Organic compounds -- part of the class 532-570 series
514 — Drug, bio-affecting and body treating compositions
Phone:(571) 272-1680
Email:matasha.dhar@uspto.gov
Location:VA 22314
Title:Pat Examnr (Biolgy)
Service:4 years
Grade:GS-12

Grant Rate and Difficulty Ranking

91
3-Year Grant rate: 27% over 62 cases
Difficulty: Extremely Hard
Difficulty Percentile: 91st

With Examiner Dhar, you have a 27% chance of getting an issued patent by 3 years after the first office action. Examiner Dhar is an extremely hard examiner and in the 91st percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Dhar, 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.

Comparison with Art Unit 1632

Examiner Dhar's grant rate is lower than that of Art Unit 1632 and lower than that of the USPTO.

Average Office Actions Per Grant
Examiner Dhar 2.5
Art Unit 1632 2.2

Interview Benefit

Grant Rate without Interview

Examiner Dhar has granted 11 of 47 cases without any applicant-requested interviews for a grant rate of 23%.

Grant Rate with Interview

Examiner Dhar has granted 6 of 15 cases with at least one applicant-requested interview for a grant rate of 40%.

Interview Benefit

With Examiner Dhar, conducting an interview increases your chance of getting a patent granted by 74%.

Recent Dispositions

Recent Dispositions

Number Title OA Rejections Status IFW
17525312 Therapeutic Methods And Compositions Utilizing Stromal Vascular Fraction Derived From Adipose Tissue Rejection information available with a Premium Stats subscription. See our pricing. Patented View
16960812 Efficient Derivation Of Stable Pluripotent Bovine Embryonic Stem Cells Patented View
18484279 Viral Expression Construct Comprising A Fibroblast Growth Factor 21 (Fgf21) Coding Sequence Patented View
18612882 Engineered Class 2, Type V Repressor Systems Patented View
17251335 Method To Generate Induced Oligodendrocyte-Lineage Cells And Treatment Using Such Cells Patented View
18062471 Systems And Methods For Cell Conversion Abandoned View
17914074 Targeting Tapasin And Tap Complex To Improve Cellular Immune-Compatibility Abandoned View
17046248 Culture Scaffold For Promoting Stem Cell Differentiation Comprising Multilayer Graphene Film Patented View
17801736 A Method For Providing A Cartilage Implant With Chondrocytes Abandoned View
16948450 Canine Epithelial Organoids And Methods Of Making, Recovering, And Use Abandoned View
17288674 Method For Producing Insulin-Producing Cells Abandoned View
17094219 Neuron Cultivation Device, Neuron Cultivating Method, Cultivated Neuron, Analysis And Identification Of Protein In Axon Bundle, And Usage Of Cultivated Neuron Abandoned View
17782148 Methods Of Meat Production By In Vitro Cell Cultivation Abandoned View
17631928 Biological Component Treatment System, Biological Component Treatment Device, And Cell Culturing Method Patented View
17819547 Precise Template-Free Correction Of Brca1 Mutation In Human Cells Via Genome Editing Abandoned View
17773080 Viable Pancreatic Islet-Like Cell Structures And A Method Of Preparing Thereof Abandoned View
17770727 Genetically Modified Non-Human Animal With Human Or Chimeric Genes Abandoned View
17761190 A Method Of Engineering Natural Killer-Cells To Target Bcma-Positive Tumors Abandoned View
17119318 Exosomes Isolated From Mesenchymal Stem Cells And Uses Thereof Patented View
16703036 Method For Preparing Differentiation-Induced Cells Abandoned View
17173887 Generating Induced Pluripotent Stem Cells Abandoned View
17636235 Compositions And Methods For Neurological Diseases Abandoned View
17589840 Compositions And Methods For Producing Stable Viral Vector Producer Cells For Cell And Gene Therapy Abandoned View
17675895 Atrial Cardiac Microtissues For Chamber-Specific Arrhythmogenic Toxicity Responses Abandoned View
18984398 Method For Generating Genome-Edited Chickens Patented View
17232676 Compositions And Methods For Sequestering Viruses Abandoned View
17555550 Non-Human Animals Having A Humanized Tslp Gene, A Humanized Tslp Receptor Gene, And/or A Humanized Il7ra Gene Abandoned View
17048906 Generation Of Human Endodermal Organs In Pig Model Using Lineage Restricted Endodermal Precursors Abandoned View
17440488 Method For Treating Atopic Dermatitis Using Monoclonal Stem Cells Abandoned View
16965835 Activation-Induced Tissue-Effector Cells Suitable For Cell Therapy And Extracelluar Vesicles Derived Therefrom Abandoned View
17483100 Genetically Engineered T Cells With Regnase-1 And/or Tgfbrii Disruption Have Improved Functionality And Persistence Abandoned View
17161269 Generation Of Induced Pluripotent Stem Cells (Ipscs) With Glut2 Mutation Or Foxa2 Deletion, Methods Of Preparing Same, And Methods Of Using Same Patented View
16972212 Methods For Generating Hematopoietic Stem Cells Patented View
16973421 Next Generation Designer Liver Organoids And Their Methods Of Preparation And Use Patented View
17190650 A Rodent Model Of B4galt1-Mediated Functions Abandoned View
17199115 Gene Therapy For Nmnat1-Associated Retinal Degeneration Patented View
17028139 Multiplexable Crispr Editors Utilizing Intracellular Evolved Aptamers For Endogenous Effector Recruitment Abandoned View
16616216 Cell Cryopreservation Formulation And Cell Recovery Method Abandoned View
17346948 Methods For Producing Fibroadipogenic Progenitor Cells Patented View
17326708 Genetically Engineered Car T Cells That Secrete Interleukin-12 And Therapeutic Uses Thereof Abandoned View
17041677 Methods Of Modulating Antisense Activity Abandoned View
18381652 Vascularized Cardiac Organoid With A Chamber Structure And Its Preparation Method Patented View
17288253 Method For Producing Virus-Infected Cell Line And Animal Model Abandoned View
17175234 Haplotype-Based Treatment Of Rp1 Associated Retinal Degenerations Patented View
18134892 Methods And Compositions For Inducing Tumor Cell Death Abandoned View
17287480 Cleavable Activators Of Cxcr3 And Methods Of Use Patented View
17406723 Adeno-Associated Virus Vectors For Treatment Of Rett Syndrome Patented View
16687426 High Activity Regulatory Elements Patented View
17490449 Rodent Animals Expressing Human Cr1 Patented View
17093126 Methods Of In Vitro Differentiation Of Midbrain Dopamine (Mda) Neurons Patented View

Appeals Statistics

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