Overall rank by patents
#39,273
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
Bulk Chemicals
USPTO PatentsView assignee record - 6 granted patents across 4 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP).
6
Total patents granted
4
CPC technology areas
20.5
Avg claims per patent
-80%
5-year filing velocity
The verdict
Bulk holds 6 US patents across 4 technology areas, rank #39,273 of 50,000 tracked assignees.
- #39,273
- of 50,000 US assignees by volume
- Top 58%
- by Innovation Score (32.8/100)
- 20.5
- avg claims per patent
- -80%
- filing velocity, last 5 yrs
Portfolio overview
Bulk Chemicals has been granted 6 US utility patents between 2015 and 2022, placing Bulk Chemicals at rank #39,273 across all assignees tracked by PlainPatent. This portfolio spans 4 distinct Cooperative Patent Classification (CPC) subclasses, averaging 20.5 claims per patent with primary concentration in C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP). As a US Corporation, Bulk Chemicals is one of the more focused assignees in the PatentsView dataset. By volume, Bulk sits between Bruegmann USA, Inc. (6 patents, rank #39,269) and Butler's Brand, Inc. (6 patents, rank #39,277) - the closest US assignees by grant volume. The composite Innovation Score of 32.8/100 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 1 grants, compared with 5 in the 2015–2019 window, a -80% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Bulk Chemicals's 20.5 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while specialization in 4 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Bulk Chemicals against peers pursuing similar technology classes.
Who files at Bulk's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Bruegmann USA
Bruegmann USA, Inc.
6 patents
- Bryght Labs
Bryght Labs, LLC
6 patents
- Buddi
Buddi Limited
6 patents
- Buildz
Buildz, LLC
6 patents
- Bunting Magnetics
Bunting Magnetics Co.
6 patents
- Burrell Mining Pr…
Burrell Mining Products, Inc.
6 patents
- Butech Bliss
Butech Bliss
6 patents
- Butler's Brand
Butler's Brand, Inc.
6 patents
- Bulk Chemicals ◀
Bulk Chemicals
6 patents
What this shows Bulk holds 6 patents at rank #39,273, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Bulk
By rank, the assignees closest to #39,273 in granted patent volume.
- Bruegmann USA, Inc. #39,269 · 6 patents
- Bryght Labs, Llc #39,270 · 6 patents
- Buddi Limited #39,271 · 6 patents
- Buildz, Llc #39,272 · 6 patents
- Bunting Magnetics Co. #39,274 · 6 patents
- Burrell Mining Products, Inc. #39,275 · 6 patents
- Butech Bliss #39,276 · 6 patents
- Butler's Brand, Inc. #39,277 · 6 patents
Leaders in C23C (Coating Metallic Material)
Other assignees with the most granted patents in Bulk's primary technology class.
- Applied Materials, Inc. 2,196 in class
- Tokyo Electron Limited 1,188 in class
- ASM IP Holding B.v. 688 in class
- Lam Research Corporation 673 in class
- Taiwan Semiconductor Manufacturing Company Ltd. 493 in class
- JFE Steel Corporation 417 in class
- Kokusai Electric Corporation 375 in class
- Nippon Steel Corporation 357 in class
Bulk's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
33 Top 58% higher than 42% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 2 | 33.3% |
| 2016 | 1 | 16.7% |
| 2017 | 2 | 33.3% |
| 2022 | 1 | 16.7% |
Which technologies does Bulk Chemicals patent most?
Top 4 of 4 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Complex
Velocity Declining
Frequently Asked Questions
How many patents does Bulk Chemicals hold?
Bulk Chemicals holds 6 US granted patents filed between 2015 and 2022, spanning 4 technology areas.
What is Bulk Chemicals's Innovation Score?
Bulk Chemicals has an Innovation Score of 32.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Bulk Chemicals focus on?
Bulk Chemicals's top technology area is C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL) with 6 patents. The company has filed patents in 4 CPC subclasses total.
Is Bulk Chemicals's patent filing rate increasing or decreasing?
Bulk Chemicals's recent filing velocity is -80% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Bulk Chemicals's patents?
Bulk Chemicals's patents average 20.5 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.
How is the Bulk Chemicals 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
Bulk's 6 grants land it in the top 58% 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 - Bulk ranks #39,273 of 50,000. Top 50 holders
- Most of this portfolio concentrates in C23C - see who else leads that technology area. C23C 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.
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.