Where does Chicago Bridge & Iron Co. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chicago Bridge & Iron Co. ranks #31,189 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 Chicago Bridge & Iron Co. hold?

Chicago Bridge & Iron Co. holds 8 US utility patents granted between 2015 and 2021, spanning 10 technology areas.

What is Chicago Bridge & Iron Co.'s Innovation Score?

Chicago Bridge & Iron Co. has an Innovation Score of 28.1 out of 100 (26th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chicago Bridge & Iron Co.'s patent grant rate increasing or decreasing?

Chicago Bridge & Iron Co.'s recent grant velocity is -67% 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 Chicago Bridge & Iron Co.'s patents?

Chicago Bridge & Iron Co.'s patents average 15.5 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 Chicago Bridge & Iron Co. 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

Chicago Bridge & Iron Co.

Q: What technology areas does Chicago Bridge & Iron Co. focus on?

Chicago Bridge & Iron Co.'s top technology area is E04G (SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings) with 4 patents, ranking #74 of 310 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 10 technology areas, recorded in grant years 2015–2021. 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: E04G (SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Chicago ranks #31,189 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 10 technology areas.

#31,189
of 49,997 US assignees by volume: 26th percentile
by Innovation Score (28.1/100): 15.5
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R31189 · US Corporation #31,189 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #31,189/49,997
PHOTO-FINISH Chemeon Surface…
CPC-FOCUS E04G · 10 areas
INNOV-THIN 28.1/100
CLAIMS-RICH 15.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chemeon Surface Technology, 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 Chicago’s 28.1 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 7.6 pts (27%) Velocity 0.0 pts (0%) Breadth 11.2 pts (40%) Claim depth 9.3 pts (33%)

Qualcomm Incorporated · highest

85
Chicago Bridge & Iron · this assignee

28
3D Lighting… · lowest

7

What this shows Chicago's Innovation Score is 28.1/100 (26th 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 Chicago?

Each dot is one of Chicago’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). Chicago’s own 15.5 claims/patent is ABOVE the 15.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Chicago's grants concentrate

Chicago Bridge & Iron Co. is a focused PatentsView assignee: 10 CPC subclasses with 50% of grants classified under E04G (SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings). Peak complete grant year is 2017 (3 grants) versus a trough of 1 in 2016. By volume, Chicago sits between ChemGenes Corporation and Christopher Cox Creative.

Chemgenes

8
Chemeon Surface T…

8
Chemomouthpiece

8
Chen Tian

8
Chicago Stock Exc…

8
China Academy of…

8
Chinook Therapeut…

8
Christopher Cox C…

8
Chicago Bridge &… ◀

8

What this shows Chicago holds 8 patents at rank #31,278, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chicago

By rank, the assignees closest to #31,278 in granted patent volume.

Leaders in E04G (Scaffolding)

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

Chicago's Innovation Score vs. every tracked assignee

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

28 26th percentile higher than 26% 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 · 2015–2021

Grants by year

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

View data table

Chicago Bridge & Iron Co. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	25.0%
2016	1	12.5%
2017	3	37.5%
2021	2	25.0%

Which technologies does Chicago Bridge & Iron Co. patent most?

E04G - SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings 4

B66F - Hoisting, Lifting, Hauling OR Pushing, NOT Otherwise Provided FOR, e.g. Devices Which Apply A Lifting OR Pushing Force Directly TO THE Surface OF A Load 4

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 3

Y10T - Technical Subjects Covered BY Former US Classification 2

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 2

B66B - ELEVATORS; Escalators OR Moving Walkways 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

Top 10 of 10 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

Chicago Bridge & Iron Co.'s patent record in context - here's where to go next.

Chicago Bridge & Iron Co.'s lead technology class is E04G (SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings), 50% of its portfolio - see every assignee active in that class. Explore E04G
Ranked #31,189 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chicago Bridge & Iron Co. against ChemGenes Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.1/100 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.