Where does C3 Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), C3 Corporation ranks #28,319 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 C3 Corporation hold?

C3 Corporation holds 9 US utility patents granted between 2015 and 2025, spanning 22 technology areas.

What is C3 Corporation's Innovation Score?

C3 Corporation has an Innovation Score of 46.2 out of 100 (top 21% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does C3 Corporation focus on?

C3 Corporation's top technology area is B65B (Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking) with 2 patents, ranking #573 of 1,343 assignees active in that subclass. Grants appear in 22 CPC subclasses total.

Is C3 Corporation's patent grant rate increasing or decreasing?

C3 Corporation's recent grant velocity is -50% 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 C3 Corporation's patents?

C3 Corporation's patents average 41.1 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 C3 Corporation 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

C3 Corporation

USPTO PatentsView assignee record - 9 granted patents across 22 technology areas, recorded in grant years 2015–2025. 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: B65B (Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, C3 ranks #28,319 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 22 technology areas.

#28,319
of 49,997 US assignees by volume: Top 21%
by Innovation Score (46.2/100): 41.1
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28319 · US Corporation #28,319 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,319/49,997
PHOTO-FINISH Burlywood
CPC-FOCUS B65B · 22 areas
INNOV-PAR 46.2/100
CLAIMS-DENSE 41.1 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Burlywood, 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 C3’s 46.2 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 8.0 pts (17%) Velocity 6.7 pts (14%) Breadth 16.6 pts (36%) Claim depth 15.0 pts (32%)

Qualcomm Incorporated · highest

85
C3 · this assignee

46
3D Lighting… · lowest

7

What this shows C3's Innovation Score is 46.2/100 (top 21% 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 C3?

Each dot is one of C3’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). C3’s own 41.1 claims/patent is ABOVE the 11.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

C3 vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where C3's grants concentrate

C3 Corporation is a focused PatentsView assignee: 22 CPC subclasses with 22.2% of grants classified under B65B (Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2015. By volume, C3 sits between Burlywood, Inc. and Canadian Solar Manufacturing (CHANGSHU) Inc..

C3's three-year grant acceleration

C3 Corporation shows 2 grants in 2022–2024 against only 2 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.

Burlywood

9
Bury Sp z o o

9
C M C S p A

9
C2sense

9
Calyxia

9
Cambridge Glycosc…

9
Came S p A

9
Canadian Solar Ma…

9
C3 ◀

9

What this shows C3 holds 9 patents at rank #28,319, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near C3

By rank, the assignees closest to #28,319 in granted patent volume.

Leaders in B65B (Machines)

Other assignees with the most granted patents in C3's primary technology class.

C3's Innovation Score vs. every tracked assignee

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

46 Top 21% higher than 79% 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 · 2015–2025

Grants by year

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

View data table

C3 Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	11.1%
2016	1	11.1%
2019	2	22.2%
2023	2	22.2%
2025partial year	3	33.3%

Which technologies does C3 Corporation patent most?

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 2

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 2

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 2

B05C - Apparatus FOR Applying Fluent Materials TO Surfaces, IN General 2

D21H - Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherwise Provided FOR 1

B31F - Mechanical Working OR Deformation OF Paper, Cardboard OR Material Worked IN A Manner Analogous TO Paper 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

G06F - Electric Digital Data Processing 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 1

Top 15 of 22 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

C3 Corporation's patent record in context - here's where to go next.

C3 Corporation's lead technology class is B65B (Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking), 22.2% of its portfolio - see every assignee active in that class. Explore B65B
Ranked #28,319 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare C3 Corporation against Burlywood, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.2/100 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.