Where does Shanghai Shift Electronics Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Shanghai Shift Electronics Co., Ltd. ranks #21,751 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Shanghai Shift Electronics Co., Ltd. hold?

Shanghai Shift Electronics Co., Ltd. holds 13 US utility patents granted between 2017 and 2025, spanning 10 technology areas.

What is Shanghai Shift Electronics Co., Ltd.'s Innovation Score?

Shanghai Shift Electronics Co., Ltd. has an Innovation Score of 34.5 out of 100 (48th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Shanghai Shift Electronics Co., Ltd. focus on?

Shanghai Shift Electronics Co., Ltd.'s top technology area is A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene) with 12 patents, ranking #80 of 546 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Is Shanghai Shift Electronics Co., Ltd.'s patent grant rate increasing or decreasing?

Shanghai Shift Electronics Co., Ltd.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Shanghai Shift Electronics Co., Ltd.'s patents?

Shanghai Shift Electronics Co., Ltd.'s patents average 17.4 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Shanghai Shift Electronics Co., Ltd. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Shanghai Shift Electronics Co., Ltd.

USPTO PatentsView assignee record - 13 granted patents across 10 technology areas, recorded in grant years 2017–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Shanghai ranks #21,751 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 10 technology areas.

#21,751
of 49,997 US assignees by volume: 48th percentile
by Innovation Score (34.5/100): 17.4
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21751 · Foreign Corporation #21,751 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #21,751/49,997
PHOTO-FINISH Sestra Systems
CPC-FOCUS A61C · 10 areas
INNOV-THIN 34.5/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sestra Systems Inc (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Shanghai’s 34.5 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 9.1 pts (26%) Velocity 3.8 pts (11%) Breadth 11.2 pts (32%) Claim depth 10.4 pts (30%)

Qualcomm Incorporated · highest

85
Shanghai Shift · this assignee

35
3D Lighting… · lowest

7

What this shows Shanghai's Innovation Score is 34.5/100 (48th percentile of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Shanghai?

Each dot is one of Shanghai’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Shanghai’s own 17.4 claims/patent is ABOVE the 8.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Shanghai vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Shanghai's grants concentrate

Shanghai Shift Electronics Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 92.3% of grants classified under A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2017. By volume, Shanghai sits between Sestra Systems Inc and Shenzhen Envicool Technology Co., Ltd..

Shanghai's three-year grant acceleration

Shanghai Shift Electronics Co., Ltd. shows 4 grants in 2022–2024 against only 7 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Sestra Systems

13
Shandong Luye Pha…

13
Shanghai Envision…

13
Shanghai Micropor…

13
Shenzhen Andelian…

13
Shenzhen Baolijie…

13
Shenzhen Bosaidon…

13
Shenzhen Envicool…

13
Shanghai Shift ◀

13

What this shows Shanghai holds 13 patents at rank #21,721, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Shanghai

By rank, the assignees closest to #21,721 in granted patent volume.

Leaders in A61C (Dentistry)

Other assignees with the most granted patents in Shanghai's primary technology class.

Shanghai's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

35 48th percentile higher than 48% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Shanghai Shift Electronics Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	7.7%
2019	3	23.1%
2020	4	30.8%
2022	1	7.7%
2023	1	7.7%
2024	2	15.4%
2025partial year	1	7.7%

Which technologies does Shanghai Shift Electronics Co., Ltd. patent most?

A61C - DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene 12

A46B - Brushes 10

H02K - Dynamo-electric Machines 4

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 2

A47K - Sanitary Equipment NOT Otherwise Provided FOR ; Toilet Accessories 2

H03K - Pulse Technique 1

H02H - Emergency Protective Circuit Arrangements 1

B26B - Hand-held Cutting Tools NOT Otherwise Provided FOR 1

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 1

B06B - Methods OR Apparatus FOR Generating OR Transmitting Mechanical Vibrations OF Infrasonic, Sonic, OR Ultrasonic Frequency, ; e.g.; FOR Performing Mechanical Work IN General 1

Top 10 of 10 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Shanghai Shift Electronics Co., Ltd.'s patent record in context - here's where to go next.

Shanghai Shift Electronics Co., Ltd.'s lead technology class is A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene), 92.3% of its portfolio - see every assignee active in that class. Explore A61C
Ranked #21,751 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Shanghai Shift Electronics Co., Ltd. against Sestra Systems Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.5/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.