Where does Blatchford Products Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Blatchford Products Limited ranks #18,444 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 Blatchford Products Limited hold?

Blatchford Products Limited holds 15 US utility patents granted between 2015 and 2023, spanning 1 technology areas.

What is Blatchford Products Limited's Innovation Score?

Blatchford Products Limited has an Innovation Score of 39.1 out of 100 (top 39% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Blatchford Products Limited's patent grant rate increasing or decreasing?

Blatchford Products Limited's recent grant velocity is +14% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Blatchford Products Limited's patents?

Blatchford Products Limited'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 Blatchford Products Limited 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

Blatchford Products Limited

Q: What technology areas does Blatchford Products Limited focus on?

Blatchford Products Limited's top technology area is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs) with 15 patents, ranking #428 of 3,082 assignees active in that subclass. Grants appear in 1 CPC subclasses total.

USPTO PatentsView assignee record - 15 granted patents across 1 technology areas, recorded in grant years 2015–2023. 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: A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Blatchford ranks #18,444 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 1 technology areas.

#18,444
of 49,997 US assignees by volume: Top 39%
by Innovation Score (39.1/100): 17.4
avg claims per patent: +14%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18444 · Foreign Corporation #18,444 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #18,444/49,997
PHOTO-FINISH Beijing Source…
CPC-NARROW A61F · 1 areas
INNOV-THIN 39.1/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +14% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Beijing Source Technology Co., Ltd. (±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 Blatchford’s 39.1 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 9.6 pts (25%) Velocity 15.6 pts (40%) Breadth 3.5 pts (9%) Claim depth 10.4 pts (27%)

Qualcomm Incorporated · highest

85
Blatchford Products · this assignee

39
3D Lighting… · lowest

7

What this shows Blatchford's Innovation Score is 39.1/100 (top 39% 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 Blatchford?

Each dot is one of Blatchford’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). Blatchford’s own 17.4 claims/patent is at or below the 18.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Blatchford's grants concentrate

Blatchford Products Limited is a focused PatentsView assignee: 1 CPC subclasses with 100% of grants classified under A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2015. By volume, Blatchford sits between Beijing Source Technology Co., Ltd. and Bondtech Co., Ltd..

Blatchford's three-year grant acceleration

Blatchford Products Limited shows 7 grants in 2022–2024 against only 3 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.

Beijing Source Te…

15
Beijing Tide Phar…

15
Benchmark

15
BG Intellectuals

15
Blue Vision Labs…

15
Blue World Holdin…

15
Bluewater Energy…

15
Bondtech

15
Blatchford Produc… ◀

15

What this shows Blatchford holds 15 patents at rank #18,431, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Blatchford

By rank, the assignees closest to #18,431 in granted patent volume.

Leaders in A61F (Filters Implantable Into Blood Vessels)

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

Blatchford's Innovation Score vs. every tracked assignee

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

39 Top 39% higher than 61% 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 · 2015–2023

Grants by year

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

View data table

Blatchford Products Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	6.7%
2016	1	6.7%
2018	3	20.0%
2019	2	13.3%
2021	1	6.7%
2022	4	26.7%
2023	3	20.0%

Which technologies does Blatchford Products Limited patent most?

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 15

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

Blatchford Products Limited's patent record in context - here's where to go next.

Blatchford Products Limited's lead technology class is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device), 100% of its portfolio - see every assignee active in that class. Explore A61F
Ranked #18,444 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Blatchford Products Limited against Beijing Source Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.1/100 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.