Where does Lewis Bolt & Nut Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Lewis Bolt & Nut Company ranks #41,404 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 Lewis Bolt & Nut Company hold?

Lewis Bolt & Nut Company holds 6 US utility patents granted between 2016 and 2025, spanning 4 technology areas.

What is Lewis Bolt & Nut Company's Innovation Score?

Lewis Bolt & Nut Company has an Innovation Score of 35.5 out of 100 (top 49% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Lewis Bolt & Nut Company focus on?

Lewis Bolt & Nut Company's top technology area is E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds) with 5 patents, ranking #25 of 117 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Lewis Bolt & Nut Company's patent grant rate increasing or decreasing?

Lewis Bolt & Nut Company's recent grant velocity is -75% 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 Lewis Bolt & Nut Company's patents?

Lewis Bolt & Nut Company's patents average 28.7 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 Lewis Bolt & Nut 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

Lewis Bolt & Nut Company

USPTO PatentsView assignee record - 6 granted patents across 4 technology areas, recorded in grant years 2016–2025. 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: E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Lewis ranks #41,404 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 4 technology areas.

#41,404
of 49,997 US assignees by volume: Top 49%
by Innovation Score (35.5/100): 28.7
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R41404 · US Corporation #41,404 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #41,404/49,997
PHOTO-FINISH Lenz Therapeutics
CPC-NARROW E01B · 4 areas
INNOV-THIN 35.5/100
CLAIMS-DENSE 28.7 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Lenz Therapeutics, Inc. (±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 Lewis’s 35.5 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 6.7 pts (19%) Velocity 6.7 pts (19%) Breadth 7.1 pts (20%) Claim depth 15.0 pts (42%)

Qualcomm Incorporated · highest

85
Lewis Bolt & Nut · this assignee

35
3D Lighting… · lowest

7

What this shows Lewis's Innovation Score is 35.5/100 (top 49% 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 Lewis?

Each dot is one of Lewis’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). Lewis’s own 28.7 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Lewis's grants concentrate

Lewis Bolt & Nut Company is a focused PatentsView assignee: 4 CPC subclasses with 83.3% of grants classified under E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2017. By volume, Lewis sits between Lenz Therapeutics, Inc. and Liberty Diversified International, Inc..

Lewis's three-year grant acceleration

Lewis Bolt & Nut Company shows 1 grants in 2022–2024 against only 1 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.

Lenz Therapeutics

6
Lenze SE

6
Leo Schachter Dia…

6
Levicept

6
Lex Submersible P…

6
Li Creative

6
Li-cycle

6
Liberty Diversifi…

6
Lewis Bolt & Nut ◀

6

What this shows Lewis holds 6 patents at rank #41,436, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Lewis

By rank, the assignees closest to #41,436 in granted patent volume.

Leaders in E01B (Permanent WAY)

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

Lewis's Innovation Score vs. every tracked assignee

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

35 Top 49% higher than 51% 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 · 2016–2025

Grants by year

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

View data table

Lewis Bolt & Nut Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	33.3%
2017	1	16.7%
2019	1	16.7%
2024	1	16.7%
2025partial year	1	16.7%

Which technologies does Lewis Bolt & Nut Company patent most?

E01B - Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds 5

Y10T - Technical Subjects Covered BY Former US Classification 3

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 2

E01D - Construction OF Bridges, ; Elevated ROADWAYS; OR VIADUCTS; Assembly OF Bridges 2

Top 4 of 4 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

Lewis Bolt & Nut Company's patent record in context - here's where to go next.

Lewis Bolt & Nut Company's lead technology class is E01B (Permanent WAY; Permanent-way TOOLS; Machines FOR Making Railways OF ALL Kinds), 83.3% of its portfolio - see every assignee active in that class. Explore E01B
Ranked #41,404 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Lewis Bolt & Nut Company against Lenz Therapeutics, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.5/100 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.