CPC technology class · F17
F17B - Gas-holders Of Variable Capacity
Gas-holders of variable capacity. 5 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 5
- US patents granted
- #3/3
- in F17
- 0.1%
- F17 class share
- +0%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Gas-holders Of Variable Capacity ranks #669 of 670 CPC technology areas - 5 US patents granted since 2015, with recorded grant volume up 0% over five years.
- #669
- of 670 CPC technology areas
- 5
- US patents granted, 2015–2025
- Subsea 7 Norway As
- leading assignee (2)
- +0%
- grant velocity, last 5 yrs
How tightly F17B concentrates
Subsea 7 Norway AS holds 40.0% of F17B's recorded grants (2 of 5) - 1 more than WesTech Engineering, LLC. Equal-window velocity 2020–2024 vs 2015–2019: +0% (2 vs 2 grants).
Leaderboard read
F17B concentration, lead at 40.0%
Subsea 7 Norway AS leads this historical grant record at 40.0% of F17B - foreign corporation assignees hold 67% of class grants (2 of 3). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 40.0%
- Top three share
- N/A
- Lead over #2
- 1
2 of 5 grants
of the class's recorded grants
more grants than WesTech Engineering, LLC
Where F17B sits inside F17
Among 3 subclasses in F17 (Storing OR Distributing Gases OR Liquids), F17B ranks #3 and holds 0.1% of the parent class's 5,576 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.
F17B grants by year, peak 2018 (2)
US utility-patent grants per year in F17B, 2015–2025 - recent five years are up 0% versus 2015–2019.
Who leads F17B?
The 12 most active assignees in Gas-holders OF Variable Capacity - wider bars mean more grants
- Subsea 7 Norway As
Subsea 7 Norway AS
2 patents
- Westech Engineering
WesTech Engineering, LLC
1 patents
What this shows Subsea 7 Norway As is the most active filer in F17B, holding 2 of the 5 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.
View data table
| Rank | Company | Patents in F17B |
|---|---|---|
| #1 | Subsea 7 Norway AS | 2 |
| #2 | WesTech Engineering, LLC | 1 |
Questions about F17B
Which company holds the most patents in F17B?
How does F17B compare inside parent class F17?
What to do with this data
F17B in context - here's where to go next.
- Subsea 7 Norway AS leads F17B with 2 grants in this class. See full portfolio
- F17B ranks #669 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class F17, the largest sibling subclass is F17C with 4,101 grants. Explore F17C
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Methodology - F17B figures are USPTO PatentsView granted-utility totals for this subclass (5 grants in the tracked window).
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.