Where does Welcon Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Welcon Inc. ranks #38,298 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 Welcon Inc. hold?

Welcon Inc. holds 7 US utility patents granted between 2015 and 2025, spanning 12 technology areas.

What is Welcon Inc.'s Innovation Score?

Welcon Inc. has an Innovation Score of 44.1 out of 100 (top 26% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Welcon Inc. focus on?

Welcon Inc.'s top technology area is F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application) with 5 patents, ranking #152 of 794 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Welcon Inc.'s patent grant rate increasing or decreasing?

Welcon Inc.'s recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Welcon Inc.'s patents?

Welcon Inc.'s patents average 7.9 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 Welcon Inc. 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

Welcon Inc.

USPTO PatentsView assignee record - 7 granted patents across 12 technology areas, recorded in grant years 2015–2025. 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: F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Welcon ranks #38,298 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 12 technology areas.

#38,298
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.1/100): 7.9
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38298 · Foreign Corporation #38,298 · 7 grants

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

GRANTS-MICRO 7 grants
LOWER-Q #38,298/49,997
PHOTO-FINISH Wedi
CPC-FOCUS F28F · 12 areas
INNOV-PAR 44.1/100
CLAIMS-SPARSE 7.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Wedi GmbH (±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 Welcon’s 44.1 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 7.2 pts (16%) Velocity 20.0 pts (45%) Breadth 12.2 pts (28%) Claim depth 4.7 pts (11%)

Qualcomm Incorporated · highest

85
Welcon · this assignee

44
3D Lighting… · lowest

7

What this shows Welcon's Innovation Score is 44.1/100 (top 26% 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 Welcon?

Each dot is one of Welcon’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). Welcon’s own 7.9 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Welcon's grants concentrate

Welcon Inc. is a focused PatentsView assignee: 12 CPC subclasses with 71.4% of grants classified under F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application). Peak complete grant year is 2024 (4 grants) versus a trough of 1 in 2015. By volume, Welcon sits between Wedi GmbH and Westco Scientific Instruments, Inc..

Welcon's three-year grant acceleration

Welcon Inc. shows 5 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.

Wedi

7
Weebly

7
Weinmann Emergenc…

7
Welco

7
Welland Medical

7
Wenzhou Hongfeng…

7
Wepower

7
Westco Scientific…

7
Welcon ◀

7

What this shows Welcon holds 7 patents at rank #38,256, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Welcon

By rank, the assignees closest to #38,256 in granted patent volume.

Leaders in F28F (Details OF Heat-exchange AND Heat-transfer Apparatus)

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

Welcon's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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 · 2015–2025

Grants by year

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

View data table

Welcon Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2022	1	14.3%
2024	4	57.1%
2025partial year	1	14.3%

Which technologies does Welcon Inc. patent most?

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 5

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 3

H01L - Semiconductor Devices NOT Covered BY Class H10 2

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 2

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

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

B01B - BOILING; Boiling Apparatus ; ; EVAPORATION; Evaporation Apparatus 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 1

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 1

G01G - Weighing 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 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

Welcon Inc.'s patent record in context - here's where to go next.

Welcon Inc.'s lead technology class is F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application), 71.4% of its portfolio - see every assignee active in that class. Explore F28F
Ranked #38,298 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Welcon Inc. against Wedi GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.1/100 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.