Overall rank by patents
#18,039
Across all tracked assignees
USPTO PatentsView assignee record - 16 granted patents across 19 technology areas, active 2015–2019. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY).
The verdict
Rockwood holds 16 US patents across 19 technology areas, rank #18,039 of 50,000 tracked assignees.
Rockwood Lithium Gmbh has been granted 16 US utility patents between 2015 and 2019, placing Rockwood Lithium Gmbh at rank #18,039 across all assignees tracked by PlainPatent. This portfolio spans 19 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.0 claims per patent with primary concentration in H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY). As a Foreign Corporation, Rockwood Lithium Gmbh is one of the more focused assignees in the PatentsView dataset. By volume, Rockwood sits between Republic OF Korea(management: Rural Development Administration) (16 patents, rank #18,035) and Real View Imaging Ltd. (16 patents, rank #18,043) - the closest US assignees by grant volume. The composite Innovation Score of 34.8/100 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 0 grants, compared with 16 in the 2015–2019 window, a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. Rockwood Lithium Gmbh's 16.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 19 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Rockwood Lithium Gmbh against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
REPUBLIC OF KOREA(MANAGEMENT: RURAL DEVELOPMENT ADMINISTRATION)
16 patents
REPUBLIC TOBACCO L.P.
16 patents
RHEON LABS LTD
16 patents
RO5 INC.
16 patents
ROCTOOL
16 patents
ROESLER IP GMBH
16 patents
Rapala VMC Corporation
16 patents
Real View Imaging Ltd.
16 patents
ROCKWOOD LITHIUM GMBH
16 patents
What this shows Rockwood holds 16 patents at rank #18,039, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #18,039 in granted patent volume.
Other assignees with the most granted patents in Rockwood's primary technology class.
Rockwood's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
35 Top 51% higher than 49% 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 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 6 | 37.5% |
| 2016 | 4 | 25.0% |
| 2017 | 4 | 25.0% |
| 2018 | 1 | 6.3% |
| 2019 | 1 | 6.3% |
Top 15 of 19 technology areas
Overall rank by patents
#18,039
Across all tracked assignees
34.8 out of 100
How to use this portfolio
Rockwood's 16 grants land it in the top 51% 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.