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Patent Examiner Sheng Han Davis

Art Unit 1732 · Catalysts, Inorganic Compounds & Coating Compositions · Tech Center 1700 · 325 applications filed 2021–2026

Average · harder than 53% of examiners● Free examiner data

Sheng Han Davis is a USPTO patent examiner in Art Unit 1732 (Catalysts, Inorganic Compounds & Coating Compositions) with 325 applications from filing years 2021–2026. Examiner Davis's allowance rate is 82.9%, above the 81.9% USPTO average for applications filed in the same years. The examiner ranks harder than 53% of examiners, whose median allowance rate is 84.2%.

Draft a response to Examiner DavisSee the strategy data ↓

Data through October 2026 from USPTO Patent Center (formerly PAIR) · Methodology

Overview

Free
Difficulty · Average
harder than 53% of examiners
Easier53rd percentileHarder
Allowance rate vs peers
Examiner Davis82.9%
Art Unit 173281.6%
USPTO average81.9%
Allowance rate
82.9%
▲ USPTO avg 81.9%
Applications
325
filing years 2021–2026
First-action allowance
3.9%
patented with no rejection
Abandoned
10.8%
share of applications
Avg office actions
1.7
USPTO avg 1.4
Days to first OA
762
▲ USPTO 627
RCE rate
23.4%
USPTO 20.5%
Interview rate
16.6%
USPTO 28.3%

Examiner details

  • Art unit1732 · Catalysts, Inorganic Compounds & Coating Compositions
  • Title / gradePrimary Patent Examiner · GS-14
  • Service19 years
  • PhoneOn each office action
  • In USPTO recordsDAVIS, SHENG HAN
Full signatory authority

Examiner Davis can allow an application without a supervisory sign-off.

Examines (USPC classes)
423 · Chemistry of Inorganic Compounds502 · Catalyst, Solid Sorbent, or Support Therefor

How to improve your odds with Examiner Davis

  • Interview results are mixed year to year. Interviewed cases were allowed more often in 1 of the 2 measured years. Weigh the year-by-year table below.
  • Plan for the timeline. First office action averages 762 days vs the 627-day USPTO norm.
  • Expect a §103. Obviousness is the most-issued rejection (298), and applicants overcame it 60.3% of the time.
  • The data cuts against an RCE. Cases with an RCE were allowed less often in both measured years, by 1.4 to 19.2 points.

Historical patterns from this examiner's past cases, shown for general information. This is not legal advice and does not predict the outcome of any specific application. Decisions about interviews, RCEs, and claim strategy should be made with a licensed patent attorney or agent.

Rejection patterns & how they get overcome

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§102 Novelty17 issued · 63.6% overcome
§103 Obviousness298 issued · 60.3% overcome
§112 Definiteness & disclosure125 issued · 81.8% overcome
How applicants traverse §103 rejections🔒 Members

Of the 66 winning responses to Examiner Davis's §103 rejections that Boundly has classified, 52 (79%) amended the claims and argued, 9 argued without amending, and 5 amended without arguing. Each winning response, with its arguments and claim amendments, is in the file wrapper.

Read the winning §103 argumentsFull REMARKS, amendments, claim trees & redlines from the file wrappers
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RCE behavior

Allowance after a Request for Continued Examination versus without one, per year. Use it to judge whether an RCE is worth the cost in front of Examiner Davis.

YearRCE rateAllowance w/ RCEAllowance w/oDelta
202237.1%70.6%89.8%-19.2pp
202128.4%83.3%84.7%-1.4pp

Recent outcomes

Free🔒 Case detail for members
App #TitleOutcomeOAsArguments & redline
18/374544Preparation Method of Ternary PrecursorPatented1🔒 View
18/245848Sintered Cathode Active Material Bricks and Methods ThereofPatented1🔒 View
17/907557Multi-Functional Catalysts for the Oxidation of No, the Oxidation of NH3 and the Selective Catalytic Reduction of NoxPatented3🔒 View
18/144460Quarternary Ammonium Halides for Treating Halogen ContaminationPatented1🔒 View
See all 325 applications with full file-wrapper detailOffice action text, attorney arguments, amendments & claim-by-claim track changes
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Art Unit 1732 technology

Catalyst compositionsInorganic compoundsZeolites & molecular sievesHydrogen & syngas productionTop CPC B01J · C01B · C09D
About this examiner. Sheng Han Davis examines in Art Unit 1732 (Catalysts, Inorganic Compounds & Coating Compositions, Tech Center 1700). The art unit's docket includes catalyst compositions, inorganic compounds, zeolites & molecular sieves, and hydrogen & syngas production.

Frequently asked questions

What is Examiner Sheng Han Davis's allowance rate?
Examiner Davis's allowance rate is 82.9%, compared with 81.9% across the USPTO and 81.6% in Art Unit 1732 for applications filed in the same years. That rate ranks Examiner Davis harder than 53% of examiners, whose median allowance rate is 84.2%.
Is Examiner Davis a hard examiner?
About average. Examiner Davis ranks harder than 53% of examiners, in the 53rd difficulty percentile (average). Examiner Davis has an 82.9% allowance rate versus 81.9% across the USPTO and 81.6% in Art Unit 1732, 1.7 office actions per application versus 1.4, and an RCE rate of 23.4% versus 20.5% across the USPTO, for applications filed in the same years.
Do examiner interviews help with Examiner Davis?
It has varied by year. Decided applications with an interview were allowed more often in 1 of the 2 measured years. In 2021, 87.5% of decided applications with an interview were allowed, versus 83.3% of those without. In 2022, the figures were 66.7% versus 88.9%.
What is Examiner Davis's most common rejection?
§103 obviousness, issued 298 times in the data. Applicants overcame it 60.3% of the time. Of the 66 winning responses Boundly has classified, 52 amended the claims and argued.
Is an RCE worth filing with Examiner Davis?
Not in this examiner's record. Decided applications with an RCE were allowed less often in both measured years, by 1.4 to 19.2 percentage points. In 2021, 83.3% of decided applications with an RCE were allowed, versus 84.7% of those without one.
How long until the first office action from Examiner Davis?
About 762 days on average, versus 627 days across the USPTO for applications filed in the same years.

Put Examiner Davis's data to work on your next response.

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Statistics are computed by Boundly Prosecution Intel from USPTO Patent Center (formerly PAIR) file wrappers for filing years 2021–2026, refreshed regularly. Allowance rate (sometimes called grant rate) is the share of disposed applications that issued as patents. Office actions here are non-final and final rejections, so restriction requirements and allowances are not counted. USPTO benchmarks are weighted to each examiner's mix of filing years, and art-unit benchmarks to the art units and filing years of the examiner's own applications, so they compare like for like. The difficulty percentile ranks examiners, each counted once, so it can point the other way from the USPTO average, which counts applications. See how each number is computed. The year-by-year interview and RCE tables show up to four recent filing years, leaving out the newest one and any year with fewer than ten applications or five decided applications on either side. Historical data is provided for informational purposes only. Past examiner behavior does not guarantee future outcomes, and nothing here is legal advice or a substitute for advice from a licensed patent attorney or agent. Are you Sheng Han Davis, or see an error? Request a correction.