Overall rank by patents
#49,626
Across all tracked assignees
USPTO PatentsView assignee record - 5 granted patents across 7 technology areas, active 2021–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F04B (POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS).
The verdict
PSG holds 5 US patents across 7 technology areas, rank #49,626 of 50,000 tracked assignees.
PSG California Llc has been granted 5 US utility patents between 2021 and 2025, placing PSG California Llc at rank #49,626 across all assignees tracked by PlainPatent. This portfolio spans 7 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.6 claims per patent with primary concentration in F04B (POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS). As a US Corporation, PSG California Llc is one of the more focused assignees in the PatentsView dataset. By volume, PSG sits between Proxene Tools Co., Ltd. (5 patents, rank #49,622) and PST Sensors (proprietary) Limited (5 patents, rank #49,630) - the closest US assignees by grant volume. The composite Innovation Score of 45.5/100 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. Historical data spans 2021 through 2025, with 5 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. PSG California Llc's 16.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 7 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark PSG California Llc against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
PROXENE TOOLS CO., LTD.
5 patents
PROXIMEX CORPORATION
5 patents
PRP TECHNOLOGIES INC
5 patents
PS INDUSTRIES INCORPORATED
5 patents
PSIMEDICA LIMITED
5 patents
PSO-RITE.COM LLC
5 patents
PST INC.
5 patents
PST SENSORS (PROPRIETARY) LIMITED
5 patents
PSG CALIFORNIA LLC
5 patents
What this shows PSG holds 5 patents at rank #49,626, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #49,626 in granted patent volume.
Other assignees with the most granted patents in PSG's primary technology class.
PSG's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
46 Top 23% higher than 77% 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
Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2021 | 1 | 20.0% |
| 2022 | 1 | 20.0% |
| 2023 | 1 | 20.0% |
| 2024 | 1 | 20.0% |
| 2025 | 1 | 20.0% |
Top 7 of 7 technology areas
Overall rank by patents
#49,626
Across all tracked assignees
45.5 out of 100
How to use this portfolio
PSG's 5 grants land it in the top 23% by Innovation Score, but volume alone doesn't tell you where the strength sits.
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.