Where does Sperry Rail, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sperry Rail, Inc. ranks #43,263 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 Sperry Rail, Inc. hold?

Sperry Rail, Inc. holds 6 US utility patents granted between 2016 and 2022, spanning 6 technology areas.

What is Sperry Rail, Inc.'s Innovation Score?

Sperry Rail, Inc. has an Innovation Score of 31.1 out of 100 (36th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sperry Rail, Inc.'s patent grant rate increasing or decreasing?

Sperry Rail, Inc.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sperry Rail, Inc.'s patents?

Sperry Rail, Inc.'s patents average 23.3 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 Sperry Rail, 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 US Corporation

Sperry Rail, Inc.

Q: What technology areas does Sperry Rail, Inc. focus on?

Sperry Rail, Inc.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 6 patents. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 6 technology areas, recorded in grant years 2016–2022. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sperry ranks #43,263 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 6 technology areas.

#43,263
of 49,997 US assignees by volume: 36th percentile
by Innovation Score (31.1/100): 23.3
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R43263 · US Corporation #43,263 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #43,263/49,997
PHOTO-FINISH Spectrum Products
CPC-NARROW G01N · 6 areas
INNOV-THIN 31.1/100
CLAIMS-DENSE 23.3 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Spectrum Products LLC (±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.

Qualcomm Incorporated · highest

85
Sperry Rail · this assignee

31
3D Lighting… · lowest

7

What this shows Sperry's Innovation Score is 31.1/100 (36th 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.

Where Sperry's grants concentrate

Sperry Rail, Inc. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2016. By volume, Sperry sits between Spectrum Products LLC and Spinal LLC.

Sperry's three-year grant acceleration

Sperry Rail, Inc. shows 1 grants in 2022–2024 against only 4 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.

Spectrum Products

6
Spee-dee Packagin…

6
Speedy Packets

6
Spenco Medical

6
Spicer Gelenkwell…

6
Spiers New

6
Spinchip Diagnost…

6
Spinal

6
Sperry Rail ◀

6

What this shows Sperry holds 6 patents at rank #43,334, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sperry

By rank, the assignees closest to #43,334 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Sperry's Innovation Score vs. every tracked assignee

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

31 36th percentile higher than 36% 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 · 2016–2022

Grants by year

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

View data table

Sperry Rail, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	16.7%
2019	1	16.7%
2020	1	16.7%
2021	2	33.3%
2022	1	16.7%

Which technologies does Sperry Rail, Inc. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 6

B61K - Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR 5

B61D - Body Details OR Kinds OF Railway Vehicles 3

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 2

E01B - Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds 1

G06N - Computing Arrangements Based ON Specific Computational Models 1

Top 6 of 6 technology areas

Where it ranks

Overall rank by patents

#43,263

of 49,997 tracked assignees

Innovation Score

31.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Sperry Rail, Inc.'s patent record in context - here's where to go next.

Sperry Rail, Inc.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 100% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #43,263 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sperry Rail, Inc. against Spectrum Products LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.1/100 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.