Where does Chromalox, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chromalox, Inc. ranks #20,923 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 Chromalox, Inc. hold?

Chromalox, Inc. holds 13 US utility patents granted between 2016 and 2024, spanning 25 technology areas.

What is Chromalox, Inc.'s Innovation Score?

Chromalox, Inc. has an Innovation Score of 42.1 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chromalox, Inc.'s patent grant rate increasing or decreasing?

Chromalox, Inc.'s recent grant velocity is -56% 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 Chromalox, Inc.'s patents?

Chromalox, Inc.'s patents average 20.0 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 Chromalox, 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

Chromalox, Inc.

Q: What technology areas does Chromalox, Inc. focus on?

Chromalox, Inc.'s top technology area is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General) with 10 patents, ranking #334 of 2,247 assignees active in that subclass. Grants appear in 25 CPC subclasses total.

USPTO PatentsView assignee record - 13 granted patents across 25 technology areas, recorded in grant years 2016–2024. 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: H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chromalox ranks #20,923 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 25 technology areas.

#20,923
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.1/100): 20.0
avg claims per patent: -56%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20923 · US Corporation #20,923 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #20,923/49,997
PHOTO-FINISH Chembio Diagnostic…
CPC-FOCUS H05B · 25 areas
INNOV-PAR 42.1/100
CLAIMS-DENSE 20.0 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -56% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chembio Diagnostic Systems, 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 Chromalox’s 42.1 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 9.1 pts (22%) Velocity 3.3 pts (8%) Breadth 17.7 pts (42%) Claim depth 12.0 pts (29%)

Qualcomm Incorporated · highest

85
Chromalox · this assignee

42
3D Lighting… · lowest

7

What this shows Chromalox's Innovation Score is 42.1/100 (top 31% 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 Chromalox?

Each dot is one of Chromalox’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). Chromalox’s own 20.0 claims/patent is ABOVE the 10.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Chromalox's grants concentrate

Chromalox, Inc. is a focused PatentsView assignee: 25 CPC subclasses with 76.9% of grants classified under H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2022. By volume, Chromalox sits between Chembio Diagnostic Systems, Inc. and Clarity Medical Systems, Inc..

Chromalox's three-year grant acceleration

Chromalox, Inc. shows 2 grants in 2022–2024 against only 4 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.

Chembio Diagnosti…

13
Cheveux

13
Chongqing Univers…

13
Chris Cam Industry

13
Circuit Seed

13
Circuit Therapeut…

13
Cixi City Liyuan…

13
Clarity Medical S…

13
Chromalox ◀

13

What this shows Chromalox holds 13 patents at rank #20,949, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chromalox

By rank, the assignees closest to #20,949 in granted patent volume.

Leaders in H05B (Electric Heating)

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

Chromalox's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2016–2024

Grants by year

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

View data table

Chromalox, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	23.1%
2017	2	15.4%
2018	2	15.4%
2019	2	15.4%
2020	2	15.4%
2022	1	7.7%
2024	1	7.7%

Which technologies does Chromalox, Inc. patent most?

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 10

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 4

H02G - Installation OF Electric Cables OR Lines, OR OF Combined Optical AND Electric Cables OR Lines 2

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 2

E03B - Installations OR Methods FOR Obtaining, Collecting, OR Distributing Water 2

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 2

H02H - Emergency Protective Circuit Arrangements 1

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 1

E01C - Construction OF, OR Surfaces FOR, Roads, Sports Grounds, OR THE LIKE; Machines OR Auxiliary Tools FOR Construction OR Repair 1

E01H - Street CLEANING; Cleaning OF Permanent WAYS; Cleaning BEACHES; Dispersing ; OR PREVENTING; FOG IN General ; Cleaning Street OR Railway Furniture OR Tunnel Walls 1

H04W - Wireless Communication Networks 1

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 1

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

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 1

Top 15 of 25 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

Chromalox, Inc.'s patent record in context - here's where to go next.

Chromalox, Inc.'s lead technology class is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General), 76.9% of its portfolio - see every assignee active in that class. Explore H05B
Ranked #20,923 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chromalox, Inc. against Chembio Diagnostic Systems, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.1/100 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.