Where does Lotte Chemical Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Lotte Chemical Corporation ranks #2,646 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Lotte Chemical Corporation hold?

Lotte Chemical Corporation holds 147 US utility patents granted between 2015 and 2025, spanning 58 technology areas.

What is Lotte Chemical Corporation's Innovation Score?

Lotte Chemical Corporation has an Innovation Score of 60.2 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Lotte Chemical Corporation focus on?

Lotte Chemical Corporation's top technology area is C08L (Compositions OF Macromolecular Compounds) with 76 patents. Grants appear in 58 CPC subclasses total.

Is Lotte Chemical Corporation's patent grant rate increasing or decreasing?

Lotte Chemical Corporation's recent grant velocity is +92% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Lotte Chemical Corporation's patents?

Lotte Chemical Corporation's patents average 11.1 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Lotte Chemical Corporation 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Lotte Chemical Corporation

USPTO PatentsView assignee record - 147 granted patents across 58 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: C08L (Compositions OF Macromolecular Compounds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Lotte ranks #2,646 of 49,997 tracked US assignees by granted-patent volume, with 147 patents across 58 technology areas.

#2,646
of 49,997 US assignees by volume: Top 3%
by Innovation Score (60.2/100): 11.1
avg claims per patent: +92%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2646 · Foreign Corporation #2,646 · 147 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 147 grants
TOP-DECILE #2,646/49,997
PHOTO-FINISH Immunogen
CPC-WIDE C08L · 58 areas
INNOV-STRONG 60.2/100
CLAIMS-PAR 11.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +92% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Immunogen, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Marvell World Trade · near

60
Lotte Chemical · this assignee

60
Sekisui Chemical · near

60
TGW Logistics · near

60
The Board of… · near

60
3D Lighting… · lowest

7

What this shows Lotte's Innovation Score is 60.2/100 (top 3% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

How Lotte's grant cadence moved

Between 2020–2024, Lotte Chemical Corporation received 92 grants versus 48 in 2015–2019 (+92% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2023 at 26 grants and bottomed in 2019 at 5. Lead class C08L accounts for 51.7% of the portfolio across 58 subclasses. Volume neighbours: Immunogen, Inc. (#2,642) and Unison Industries, LLC (#2,650).

Lotte's three-year grant acceleration

From 2019–2021 to 2022–2024, Lotte Chemical Corporation moved from 36 to 61 grants (1.69x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #314. See the growth leaderboard.

Immunogen

147
Interface Technol…

147
Intex Marketing

147
James R Glidewell…

147
Medtronic Cryocath

147
Quest Software

147
Sage Products

147
Unison Industries

147
Lotte Chemical ◀

147

What this shows Lotte holds 147 patents at rank #2,646, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Lotte

By rank, the assignees closest to #2,646 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Lotte, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (60 here).

The Board of Trustees of The University of Alabama 60 Sekisui Chemical Co., Ltd. 60 TGW Logistics GmbH 60 Marvell World Trade Ltd. 60

Similar claim depth

Nearest assignees by average claims per patent (11.1 here).

Yahoo Japan Corporation 11.1 avg Ushio Denki Kabushiki Kaisha 11.1 avg Anheuser-busch Inbev S.A. 11.1 avg Paragon 28, Inc. 11.2 avg

Lotte's Innovation Score vs. every tracked assignee

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

60 Top 3% higher than 97% of 49,997 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 · 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

Lotte Chemical Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	4.8%
2016	7	4.8%
2017	13	8.8%
2018	16	10.9%
2019	5	3.4%
2020	17	11.6%
2021	14	9.5%
2022	19	12.9%
2023	26	17.7%
2024	16	10.9%
2025partial year	7	4.8%

Which technologies does Lotte Chemical Corporation patent most?

C08L - Compositions OF Macromolecular Compounds 76

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 53

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 26

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 17

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 17

B01D - Separation 15

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 15

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 14

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 14

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 10

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 10

C07C - Acyclic OR Carbocyclic Compounds 9

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 7

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 7

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 6

Top 15 of 58 technology areas

Where it ranks

Overall rank by patents

#2,646

of 49,997 tracked assignees

Innovation Score

60.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Lotte Chemical Corporation's patent record in context - here's where to go next.

Lotte Chemical Corporation's lead technology class is C08L (Compositions OF Macromolecular Compounds), 51.7% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #2,646 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Lotte Chemical Corporation against Immunogen, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 60.2/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent, US Patent Intelligence Editorial Process · 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.