USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Elkem Silicones Shanghai Co., Ltd.

USPTO PatentsView assignee record - 6 granted patents across 15 technology areas, active 2019–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

24.2

Avg claims per patent

+400%

5-year filing velocity

The verdict

Elkem holds 6 US patents across 15 technology areas, rank #39,966 of 50,000 tracked assignees.

#39,966
of 50,000 US assignees by volume: Top 38%
by Innovation Score (39.4/100): 24.2
avg claims per patent: +400%
filing velocity, last 5 yrs

Portfolio overview

Elkem Silicones Shanghai Co., Ltd. has been granted 6 US utility patents between 2019 and 2025, placing Elkem Silicones Shanghai Co., Ltd. at rank #39,966 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 24.2 claims per patent with primary concentration in C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients). As a Foreign Corporation, Elkem Silicones Shanghai Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Elkem sits between Electrovaya Inc. (6 patents, rank #39,962) and Emergent Product Development Gaithersburg Inc. (6 patents, rank #39,970) - the closest US assignees by grant volume. The composite Innovation Score of 39.4/100 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 5 grants, compared with 1 in the 2015–2019 window, a +400% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Elkem Silicones Shanghai Co., Ltd.'s 24.2 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Elkem Silicones Shanghai Co., Ltd. against peers pursuing similar technology classes.

Electrovaya

6
Elfi-tech

6
Elifeconnection

6
ELK

6
ELVY

6
EM Coretech

6
Emanate Wireless

6
Emergent Product…

6
Elkem Silicones S… ◀

6

What this shows Elkem holds 6 patents at rank #39,966, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Elkem

By rank, the assignees closest to #39,966 in granted patent volume.

Leaders in C08K (Use of inorganic or non-macromolecular organic substances…)

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

Elkem's Innovation Score vs. every tracked assignee

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

39 Top 38% higher than 62% 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

USPTO utility patent grants by year · 2019–2025

Grants by year

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

View data table

Elkem Silicones Shanghai Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	16.7%
2020	1	16.7%
2021	1	16.7%
2022	1	16.7%
2024	1	16.7%
2025	1	16.7%

Which technologies does Elkem Silicones Shanghai Co., Ltd. patent most?

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 5

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 5

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 5

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 2

B60R - VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 1

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 1

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 1

D06N - WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR 1

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 1

C09J - ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES 1

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 1

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 1

B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING 1

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 1

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Complex

Velocity Accelerating

Where it ranks

Overall rank by patents

#39,966

Across all tracked assignees

Innovation Score

39.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Elkem Silicones Shanghai Co., Ltd. hold?

Elkem Silicones Shanghai Co., Ltd. holds 6 US granted patents filed between 2019 and 2025, spanning 15 technology areas.

What is Elkem Silicones Shanghai Co., Ltd.'s Innovation Score?

Elkem Silicones Shanghai Co., Ltd. has an Innovation Score of 39.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Elkem Silicones Shanghai Co., Ltd. focus on?

Elkem Silicones Shanghai Co., Ltd.'s top technology area is C08K (Use of inorganic or non-macromolecular organic substances as compounding ingredients) with 5 patents. The company has filed patents in 15 CPC subclasses total.

Is Elkem Silicones Shanghai Co., Ltd.'s patent filing rate increasing or decreasing?

Elkem Silicones Shanghai Co., Ltd.'s recent filing velocity is +400% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Elkem Silicones Shanghai Co., Ltd.'s patents?

Elkem Silicones Shanghai Co., Ltd.'s patents average 24.2 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the Elkem Silicones Shanghai Co., Ltd. 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

Elkem's 6 grants land it in the top 38% 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 - Elkem ranks #39,966 of 50,000. Top 50 holders
Most of this portfolio concentrates in C08K - see who else leads that technology area. C08K 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.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.