Where does Shanghai Lees Manufacturing Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Shanghai Lees Manufacturing Co., Ltd. ranks #18,092 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 Lees Manufacturing Co., Ltd. hold?

Shanghai Lees Manufacturing Co., Ltd. holds 16 US utility patents granted between 2015 and 2022, spanning 1 technology areas.

What is Shanghai Lees Manufacturing Co., Ltd.'s Innovation Score?

Shanghai Lees Manufacturing Co., Ltd. has an Innovation Score of 21.0 out of 100 (8th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Shanghai Lees Manufacturing Co., Ltd.'s patent grant rate increasing or decreasing?

Shanghai Lees Manufacturing Co., Ltd.'s recent grant velocity is -77% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Shanghai Lees Manufacturing Co., Ltd.'s patents?

Shanghai Lees Manufacturing Co., Ltd.'s patents average 1.6 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 Lees Manufacturing 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 Lees Manufacturing Co., Ltd.

Q: What technology areas does Shanghai Lees Manufacturing Co., Ltd. focus on?

Shanghai Lees Manufacturing Co., Ltd.'s top technology area is B43L (Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing) with 1 patents, ranking #30 of 54 assignees active in that subclass. Grants appear in 1 CPC subclasses total.

USPTO PatentsView assignee record - 16 granted patents across 1 technology areas, recorded in grant years 2015–2022. 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: B43L (Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Shanghai ranks #18,092 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 1 technology areas.

#18,092
of 49,997 US assignees by volume: 8th percentile
by Innovation Score (21.0/100): 1.6
avg claims per patent: -77%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18092 · Foreign Corporation #18,092 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 16 grants
MID-PACK #18,092/49,997
PHOTO-FINISH Seca
CPC-NARROW B43L · 1 areas
INNOV-THIN 21.0/100
CLAIMS-SPARSE 1.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -77% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Seca AG (±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 21.0 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 9.8 pts (47%) Velocity 6.7 pts (32%) Breadth 3.5 pts (17%) Claim depth 1.0 pts (5%)

Qualcomm Incorporated · highest

85
Shanghai Lees… · this assignee

21
3D Lighting… · lowest

7

What this shows Shanghai's Innovation Score is 21.0/100 (8th 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 1.6 claims/patent is at or below the 7.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Shanghai's grants concentrate

Shanghai Lees Manufacturing Co., Ltd. is a focused PatentsView assignee: 1 CPC subclasses with 6.3% of grants classified under B43L (Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2019. By volume, Shanghai sits between Seca AG and Shenzhen Eary Innovation Design Co., Ltd.

Shanghai's three-year grant acceleration

Shanghai Lees Manufacturing Co., Ltd. shows 2 grants in 2022–2024 against only 2 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.

Seca

16
Secop

16
Seed

16
Seibu Giken

16
Shaw Development

16
Shenzhen Bling Li…

16
Shenzhen Dogcare…

16
Shenzhen Eary Inn…

16
Shanghai Lees Man… ◀

16

What this shows Shanghai holds 16 patents at rank #18,075, 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 #18,075 in granted patent volume.

Leaders in B43L (Articles FOR Writing OR Drawing UPON)

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)

21 8th percentile higher than 8% 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 · 2015–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Shanghai Lees Manufacturing Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	18.8%
2016	3	18.8%
2017	3	18.8%
2018	3	18.8%
2019	1	6.3%
2020	1	6.3%
2022	2	12.5%

Which technologies does Shanghai Lees Manufacturing Co., Ltd. patent most?

B43L - Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing 1

Top 1 of 1 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 Lees Manufacturing Co., Ltd.'s patent record in context - here's where to go next.

Shanghai Lees Manufacturing Co., Ltd.'s lead technology class is B43L (Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing), 6.3% of its portfolio - see every assignee active in that class. Explore B43L
Ranked #18,092 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Shanghai Lees Manufacturing Co., Ltd. against Seca AG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 21.0/100 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.