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  2. USPTO
  3. TC 1600
  4. Group 1650
  5. Art Unit 1656
  6. Examiner Tsay

Examiner Tsay Marsha M

1656-TSAY-MARSHA-M

Employment Information

Art Unit:1656 — Chemistry: molecular biology and microbiology
Group:1650 — Enzymology, Microbiology, and Fermentation, Small Peptides and Bioacting Plant, Microbial and Animal Extracts
Classes: 435 — Chemistry: molecular biology and microbiology
424 — Drug, bio-affecting and body treating compositions
530 — Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
514 — Drug, bio-affecting and body treating compositions
604 — Surgery
204 — Chemistry: electrical and wave energy
600 — Surgery
210 — Liquid purification or separation
521 — Synthetic resins or natural rubbers -- part of the class 520 series
426 — Food or edible material: processes, compositions, and products
Phone:(571) 272-2938
Email:marsha.tsay@uspto.gov
Location:VA 22314
Title:Pat Examnr Biolgy
Service:22 years
Grade:GS-14

Grant Rate and Difficulty Ranking

85
3-Year Grant rate: 44% over 266 cases
Difficulty: Very Hard
Difficulty Percentile: 85th

With Examiner Tsay, you have a 44% chance of getting an issued patent by 3 years after the first office action. Examiner Tsay is a very hard examiner and in the 85th percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Tsay, 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 1656

Examiner Tsay's grant rate is lower than that of Art Unit 1656 and lower than that of the USPTO.

Average Office Actions Per Grant
Examiner Tsay 2.5
Art Unit 1656 1.4

Interview Benefit

Grant Rate without Interview

Examiner Tsay has granted 84 of 209 cases without any applicant-requested interviews for a grant rate of 40%.

Grant Rate with Interview

Examiner Tsay has granted 33 of 57 cases with at least one applicant-requested interview for a grant rate of 58%.

Interview Benefit

With Examiner Tsay, conducting an interview increases your chance of getting a patent granted by 45%.

Recent Dispositions

Recent Dispositions

Number Title OA Rejections Status IFW
17760165 Multipartite And Circularly Permuted Beta-Barrel Polypeptides And Methods For Their Use Rejection information available with a Premium Stats subscription. See our pricing. Abandoned View
18384018 Single Alpha Chain Collagens Patented View
17155935 Purification Of Chimeric Fviii Molecules Patented View
17962153 Compositions, Methods, And Applications Of A Synthetic Surfactant Abandoned View
17923180 Immunothrombosis In Covid-19 Acute Respiratory Distress Syndrome Abandoned View
17272803 Methods For Improving Yields Of L-Glufosinate Patented View
18709446 Engineered Split Dhfr-Based Methods And Systems For Selecting Cells That Have Stably Acquired A Heterologous Polynucleotide Abandoned View
17808450 Compositions And Methods For Identification Of Modulators Of Ras Protein Complexes Abandoned View
19173652 Euglobulin-Based Method For Determining The Biological Activity Of Defibrotide Patented View
17925385 Formulation Of Pure Dimethoxy Curcumin-Human Serum Albumin And A Process For The Preparation Thereof Abandoned View
19173657 Euglobulin-Based Method For Determining The Biological Activity Of Defibrotide Patented View
18512485 Promoter For Yeast Patented View
17425095 Beta-Arrestin Mutants Patented View
17829032 Medium Composition For Culturing Animal Cells For Producing Recombinant Extracellular Matrix Protein And Method Of Using The Same Abandoned View
16704400 Use Of Lentiviral Vectors Expressing Factor Ix Abandoned View
17607667 Novel Faecalibacterium Prausnitzii Strain Eb-Fpdk11 And Use Thereof Patented View
17420378 Engineered Transaminase Polypeptides Patented View
17420585 Method Of Quantifying Target Substance By Using Glucose Meter And Cell-Free Protein Synthesis Abandoned View
17790406 Strain Of Beijerinckia Fluminensis And Application Thereof In Arsenic Oxidation Abandoned View
17613902 Composition Comprising Biofilm Forming Bacillus Patented View
16725309 Treatment Of Respiratory Disorders With Arachidonate 15-Lipoxygenase (Alox15) Inhibitors Patented View
18737619 Microorganisms And Methods For The Production Of Oxygenated Compounds From Hexoses Abandoned View
17758825 Cell-Derived Vesicles Comprising Target Protein And Method For Producing Same Abandoned View
18406031 Olfactory Receptor Involved In The Perception Of Musk Fragrance And The Use Thereof Patented View
17781266 Medium Composition For Culturing Animal Cells For Producing Recombinant Extracellular Matrix Protein And Method Of Using The Same Abandoned View
17195615 Methods And Devices For Detection Of Coagulation Impairment Abandoned View
15238225 Methods, Hosts, And Reagents Related Thereto For Production Of Unsaturated Pentahydrocarbons, Derivatives And Intermediates Thereof Abandoned View
16453717 Load Bearing Crowded Collagen Constructs Abandoned View
18470985 Biomarker Assay For Use In Monitoring Autism Patented View
17055470 Genetically Engineered Cell And Application Thereof Patented View
17771333 Low Volume Transfection Abandoned View
17605124 Methods And Compositions For Dual Glycan Binding Aav2.5 Vector Abandoned View
17894593 Methods For Extracting Proteins From A Blood-Based Material Abandoned View
18901009 Bone Gelatin Process Patented View
16968719 Host Cell For Producing A Protein Of Interest Patented View
18662446 Enzyme Variants With Improved Ester Synthase Properties Patented View
18584363 Pd-1 Homing Endonuclease Variants, Compositions, And Methods Of Use Patented View
16931266 Methods, Compositions And Cells For Preparing Surfactant Protein D (Sp-D) Patented View
17603936 Production Of Salipro Particles Patented View
17041682 Systems And Methods For Characterizing Surfactant Protein D (Sp-D) Oligomers Patented View
16089176 Compositions And Methods For Oligodendrocyte Development Patented View
18889088 Composition For Regulating Production Of Proteins Patented View
16728941 Stabilization Of Collagen Scaffolds Patented View
18615341 Botulinum Neurotoxin Biohybrid Abandoned View
18159281 Methods And Devices For Detection Of Anticoagulants In Plasma And Whole Blood Abandoned View
16640568 Method For Virus Filtration Of Von Willebrand Factor Abandoned View
16859881 Compositions And Methods For Logic-Gated Profiling Of Biologic Activity Patented View
17429104 Enzymatic Production Of Mannose Patented View
18159283 Methods And Devices For Detection Of Anticoagulants In Plasma And Whole Blood Abandoned View
17255827 Compositions And Methods For Treating Metabolic Disease Abandoned View

Appeals Statistics

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