Where does Stein Seal Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Stein Seal Company ranks #14,297 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 Stein Seal Company hold?

Stein Seal Company holds 21 US utility patents granted between 2015 and 2024, spanning 6 technology areas.

What is Stein Seal Company's Innovation Score?

Stein Seal Company has an Innovation Score of 42.9 out of 100 (top 29% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Stein Seal Company focus on?

Stein Seal Company's top technology area is F16J (Pistons ; CYLINDERS; Sealings) with 21 patents, ranking #35 of 753 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Stein Seal Company's patent grant rate increasing or decreasing?

Stein Seal Company's recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Stein Seal Company's patents?

Stein Seal Company's patents average 27.1 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 Stein Seal Company 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

Stein Seal Company

USPTO PatentsView assignee record - 21 granted patents across 6 technology areas, recorded in grant years 2015–2024. 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: F16J (Pistons ; CYLINDERS; Sealings).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Stein ranks #14,297 of 49,997 tracked US assignees by granted-patent volume, with 21 patents across 6 technology areas.

#14,297
of 49,997 US assignees by volume: Top 29%
by Innovation Score (42.9/100): 27.1
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14297 · US Corporation #14,297 · 21 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 21 grants
MID-PACK #14,297/49,997
PHOTO-FINISH Sphere Entertainment…
CPC-NARROW F16J · 6 areas
INNOV-PAR 42.9/100
CLAIMS-DENSE 27.1 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sphere Entertainment Group, 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.

How Stein’s 42.9 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 10.7 pts (25%) Velocity 8.6 pts (20%) Breadth 8.7 pts (20%) Claim depth 15.0 pts (35%)

Qualcomm Incorporated · highest

85
Stein Seal · this assignee

43
3D Lighting… · lowest

7

What this shows Stein's Innovation Score is 42.9/100 (top 29% 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 Stein?

Each dot is one of Stein’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). Stein’s own 27.1 claims/patent is ABOVE the 11.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Stein's grants concentrate

Stein Seal Company is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under F16J (Pistons ; CYLINDERS; Sealings). Peak complete grant year is 2023 (6 grants) versus a trough of 1 in 2016. By volume, Stein sits between Sphere Entertainment Group, LLC and SureTint Technologies, LLC.

Stein's three-year grant acceleration

Stein Seal Company shows 9 grants in 2022–2024 against only 7 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.

Sphere Entertainm…

21
Spirox

21
Sportsbox ai

21
Stanadyne

21
Stone Aerospace

21
Storopack Hans Re…

21
Strato

21
Suretint

21
Stein Seal ◀

21

What this shows Stein holds 21 patents at rank #14,299, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Stein

By rank, the assignees closest to #14,299 in granted patent volume.

Leaders in F16J (Pistons)

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

Stein's Innovation Score vs. every tracked assignee

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

43 Top 29% higher than 71% 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 · 2015–2024

Grants by year

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

View data table

Stein Seal Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	9.5%
2016	1	4.8%
2017	1	4.8%
2018	1	4.8%
2019	1	4.8%
2020	3	14.3%
2021	3	14.3%
2022	2	9.5%
2023	6	28.6%
2024	1	4.8%

Which technologies does Stein Seal Company patent most?

F16J - Pistons ; CYLINDERS; Sealings 21

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 19

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 19

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 9

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 2

F04D - Non-positive-displacement Pumps 2

Top 6 of 6 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

Stein Seal Company's patent record in context - here's where to go next.

Stein Seal Company's lead technology class is F16J (Pistons ; CYLINDERS; Sealings), 100% of its portfolio - see every assignee active in that class. Explore F16J
Ranked #14,297 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Stein Seal Company against Sphere Entertainment Group, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.9/100 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.