Where does Xiamen Delmei Sanitary Ware Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Xiamen Delmei Sanitary Ware Co., Ltd. ranks #8,318 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 Xiamen Delmei Sanitary Ware Co., Ltd. hold?

Xiamen Delmei Sanitary Ware Co., Ltd. holds 39 US utility patents granted between 2016 and 2025, spanning 12 technology areas.

What is Xiamen Delmei Sanitary Ware Co., Ltd.'s Innovation Score?

Xiamen Delmei Sanitary Ware Co., Ltd. has an Innovation Score of 47.3 out of 100 (top 19% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Xiamen Delmei Sanitary Ware Co., Ltd. focus on?

Xiamen Delmei Sanitary Ware Co., Ltd.'s top technology area is E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks) with 10 patents, ranking #40 of 262 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Xiamen Delmei Sanitary Ware Co., Ltd.'s patent grant rate increasing or decreasing?

Xiamen Delmei Sanitary Ware Co., Ltd.'s recent grant velocity is +1500% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Xiamen Delmei Sanitary Ware Co., Ltd.'s patents?

Xiamen Delmei Sanitary Ware Co., Ltd.'s patents average 3.9 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 Xiamen Delmei Sanitary Ware 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

Xiamen Delmei Sanitary Ware Co., Ltd.

USPTO PatentsView assignee record - 39 granted patents across 12 technology areas, recorded in grant years 2016–2025. 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: E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Xiamen ranks #8,318 of 49,997 tracked US assignees by granted-patent volume, with 39 patents across 12 technology areas.

#8,318
of 49,997 US assignees by volume: Top 19%
by Innovation Score (47.3/100): 3.9
avg claims per patent: +1500%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8318 · Foreign Corporation #8,318 · 39 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 39 grants
UPPER-Q #8,318/49,997
PHOTO-FINISH dormakaba USA
CPC-FOCUS E03C · 12 areas
INNOV-PAR 47.3/100
CLAIMS-SPARSE 3.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1500% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: dormakaba USA 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 Xiamen’s 47.3 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 12.7 pts (27%) Velocity 20.0 pts (42%) Breadth 12.2 pts (26%) Claim depth 2.3 pts (5%)

Qualcomm Incorporated · highest

85
LinkedIn · near

47
Lovevery · near

47
NVH Korea · near

47
Self · near

47
Xiamen Delmei… · this assignee

47
3D Lighting… · lowest

7

What this shows Xiamen's Innovation Score is 47.3/100 (top 19% 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 Xiamen?

Each dot is one of Xiamen’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). Xiamen’s own 3.9 claims/patent is at or below the 15.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Xiamen's grants concentrate

Xiamen Delmei Sanitary Ware Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 25.6% of grants classified under E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks). Peak complete grant year is 2023 (14 grants) versus a trough of 2 in 2016. By volume, Xiamen sits between Weinberg Medical Physics, Inc and ABB E-Mobility B.V..

Xiamen's three-year grant acceleration

Xiamen Delmei Sanitary Ware Co., Ltd. shows 32 grants in 2022–2024 against only 0 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.

Weinberg Medical…

39
Wiliot

39
World Richman Man…

39
WÜRTH Elektronik…

39
Xenex Disinfectio…

39
Y E Hub Armenia

39
dormakaba USA

39
Xiamen Delmei San… ◀

39
ABB E-mobility B V

38

What this shows Xiamen holds 39 patents at rank #8,316, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Xiamen

By rank, the assignees closest to #8,316 in granted patent volume.

Leaders in E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Xiamen, neither rank-band nor same-CPC leaders (those blocks stay above). In E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste…), Xiamen ranks #40 of 262 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Lovevery, Inc. 47 Self Electronics Co., Ltd. 47 LinkedIn Corporation 47 NVH Korea, Inc. 47

Xiamen's Innovation Score vs. every tracked assignee

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

47 Top 19% higher than 81% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Xiamen Delmei Sanitary Ware Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	5.1%
2022	6	15.4%
2023	14	35.9%
2024	12	30.8%
2025partial year	5	12.8%

Which technologies does Xiamen Delmei Sanitary Ware Co., Ltd. patent most?

E03C - Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks 10

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 5

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 1

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 1

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 1

Y10T - Technical Subjects Covered BY Former US Classification 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

B01D - Separation 1

Top 12 of 12 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

Xiamen Delmei Sanitary Ware Co., Ltd.'s patent record in context - here's where to go next.

Xiamen Delmei Sanitary Ware Co., Ltd.'s lead technology class is E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks), 25.6% of its portfolio - see every assignee active in that class. Explore E03C
Ranked #8,318 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Xiamen Delmei Sanitary Ware Co., Ltd. against Weinberg Medical Physics, Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.3/100 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.