USPTO 2015–2025 USPTO PatentsView US Corporation

Keystone Tower Systems, Inc.

USPTO PatentsView assignee record - 30 granted patents across 14 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B21C (MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY RE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.8

Avg claims per patent

+100%

5-year filing velocity

The verdict

Keystone holds 30 US patents across 14 technology areas, rank #10,374 of 50,000 tracked assignees.

#10,374
of 50,000 US assignees by volume: Top 37%
by Innovation Score (40.0/100): 14.8
avg claims per patent: +100%
filing velocity, last 5 yrs

Portfolio overview

Keystone Tower Systems, Inc. has been granted 30 US utility patents between 2016 and 2025, placing Keystone Tower Systems, Inc. at rank #10,374 across all assignees tracked by PlainPatent. This portfolio spans 14 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.8 claims per patent with primary concentration in B21C (MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY RE). As a US Corporation, Keystone Tower Systems, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Keystone sits between Kount Inc. (30 patents, rank #10,370) and Kwik Tek, Inc. (30 patents, rank #10,378) - the closest US assignees by grant volume. The composite Innovation Score of 40.0/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 20 grants, compared with 10 in the 2015–2019 window, a +100% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Keystone Tower Systems, Inc.'s 14.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 14 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Keystone Tower Systems, Inc. against peers pursuing similar technology classes.

Kount

30
KUKA Systems

30
Isowa

30
Kao USA

30
Kohler (China) In…

30
Kolcraft Enterpri…

30
Koyo Bearings Nor…

30
Kwik Tek

30
Keystone Tower Sy… ◀

30

What this shows Keystone holds 30 patents at rank #10,374, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Keystone

By rank, the assignees closest to #10,374 in granted patent volume.

Leaders in B21C (Manufacture OF Metal Sheets)

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

Keystone's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% of 50,000 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

Keystone Tower Systems, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	10.0%
2018	2	6.7%
2019	5	16.7%
2020	3	10.0%
2021	3	10.0%
2022	3	10.0%
2023	6	20.0%
2024	1	3.3%
2025	4	13.3%

Which technologies does Keystone Tower Systems, Inc. patent most?

B21C - MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL 25

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 19

B23K - SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 18

E04H - BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 12

B21B - ROLLING OF METAL 9

F16L - PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL 7

F03D - WIND MOTORS 5

F05B - INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G 5

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 4

B23P - METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 3

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 3

E06C - LADDERS 2

G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS 2

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1

Top 14 of 14 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#10,374

Across all tracked assignees

Innovation Score

40.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Keystone Tower Systems, Inc. hold?

Keystone Tower Systems, Inc. holds 30 US granted patents filed between 2016 and 2025, spanning 14 technology areas.

What is Keystone Tower Systems, Inc.'s Innovation Score?

Keystone Tower Systems, Inc. has an Innovation Score of 40.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Keystone Tower Systems, Inc. focus on?

Keystone Tower Systems, Inc.'s top technology area is B21C (MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL) with 25 patents. The company has filed patents in 14 CPC subclasses total.

Is Keystone Tower Systems, Inc.'s patent filing rate increasing or decreasing?

Keystone Tower Systems, Inc.'s recent filing velocity is +100% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Keystone Tower Systems, Inc.'s patents?

Keystone Tower Systems, Inc.'s patents average 14.8 claims each. This falls within the standard range, providing solid legal coverage.

How is the Keystone Tower Systems, 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.

How to use this portfolio

Keystone's 30 grants land it in the top 37% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Keystone ranks #10,374 of 50,000. Top 50 holders
Most of this portfolio concentrates in B21C - see who else leads that technology area. B21C leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.