Where does Shamrock International Fastener LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Shamrock International Fastener LLC ranks #37,429 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 Shamrock International Fastener LLC hold?

Shamrock International Fastener LLC holds 7 US utility patents granted between 2017 and 2020, spanning 8 technology areas.

What is Shamrock International Fastener LLC's Innovation Score?

Shamrock International Fastener LLC has an Innovation Score of 22.3 out of 100 (10th 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 Shamrock International Fastener LLC focus on?

Shamrock International Fastener LLC's top technology area is F16F (SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration) with 1 patents, ranking #460 of 892 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is Shamrock International Fastener LLC's patent grant rate increasing or decreasing?

Shamrock International Fastener LLC's recent grant velocity is -83% 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 Shamrock International Fastener LLC's patents?

Shamrock International Fastener LLC's patents average 8.6 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 Shamrock International Fastener LLC 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 US Corporation

Shamrock International Fastener LLC

USPTO PatentsView assignee record - 7 granted patents across 8 technology areas, recorded in grant years 2017–2020. 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: F16F (SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Shamrock ranks #37,429 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 8 technology areas.

#37,429
of 49,997 US assignees by volume: 10th percentile
by Innovation Score (22.3/100): 8.6
avg claims per patent: -83%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37429 · US Corporation #37,429 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #37,429/49,997
PHOTO-FINISH Seventy Eight
CPC-NARROW F16F · 8 areas
INNOV-THIN 22.3/100
CLAIMS-PAR 8.6 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -83% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Seventy Eight 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 Shamrock’s 22.3 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 7.2 pts (32%) Velocity 0.0 pts (0%) Breadth 10.0 pts (45%) Claim depth 5.1 pts (23%)

Qualcomm Incorporated · highest

85
Shamrock Internation… · this assignee

22
3D Lighting… · lowest

7

What this shows Shamrock's Innovation Score is 22.3/100 (10th 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 Shamrock?

Each dot is one of Shamrock’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). Shamrock’s own 8.6 claims/patent is at or below the 9.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Shamrock's grants concentrate

Shamrock International Fastener LLC is a focused PatentsView assignee: 8 CPC subclasses with 14.3% of grants classified under F16F (SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2019. By volume, Shamrock sits between Seventy Eight Co., Ltd. and Shanghai Golden Leaf MED TEC Co., Ltd..

Seventy Eight

7
Sexy Back BRA

7
SH Materials

7
Shah

7
Shanghai Conant O…

7
Shanghai DE Novo…

7
Shanghai Energy N…

7
Shanghai Golden L…

7
Shamrock Internat… ◀

7

What this shows Shamrock holds 7 patents at rank #37,360, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Shamrock

By rank, the assignees closest to #37,360 in granted patent volume.

Leaders in F16F (Springs)

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

Shamrock's Innovation Score vs. every tracked assignee

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

22 10th percentile higher than 10% 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 · 2017–2020

Grants by year

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

View data table

Shamrock International Fastener LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	28.6%
2018	3	42.9%
2019	1	14.3%
2020	1	14.3%

Which technologies does Shamrock International Fastener LLC patent most?

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 1

D06F - Laundering, Drying, Ironing, Pressing OR Folding Textile Articles 1

Y10T - Technical Subjects Covered BY Former US Classification 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

F41G - Weapon SIGHTS; Aiming 1

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 1

Top 8 of 8 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

Shamrock International Fastener LLC's patent record in context - here's where to go next.

Shamrock International Fastener LLC's lead technology class is F16F (SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration), 14.3% of its portfolio - see every assignee active in that class. Explore F16F
Ranked #37,429 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Shamrock International Fastener LLC against Seventy Eight Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.3/100 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.