https://www.patsnap.com/resources/blog/rd-blog/laundry-detergent-formulation-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Household & Personal Care
Laundry Detergent Formulation Patents: Filing Trends and Where the Field Is Still Open
  • One assignee dominates the ranking. the leading filer holds 1,737 records against a fifth-place count of 112 and a tenth-place count of 37 — a steep drop-off rather than a gradual one.
  • Filing has cooled since its 2017 peak. annual filings ran at 80 in 2017 and had fallen to single digits by the most recent (partial) year, with the 2022 midpoint at 57.
  • Enzyme and cleaning-polymer claims carry the most citations. the most-cited records in the set are subtilase enzyme variants and graft-polymer cleaning compositions, not surfactant base formulas.
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3,141
Published Records
-15%
3-Yr Growth (lag-adjusted)
EP
Leading Jurisdiction
100
Active Filers Ranked
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview

What this dataset covers

This landscape draws on 3,141 published records filed between 2015 and mid-2026 that combine laundry detergent or detergent formulation terminology with technical claim language covering enzyme stability, cold water performance, surfactant systems, unit dose film, or malodor control, restricted to the C11D1, C11D3 and C11D17 classification groups. The scope is deliberately narrow: it is not every detergent patent, but the subset where the claims engage one of these named performance problems directly.

Because publication lags filing by roughly 18 months, the most recent year in the trend chart understates real filing activity and should be read as a floor, not a ceiling.

Filing activity and technology composition, 2015-2026
  1. 1PROCTER & GAMBLE CO1,737
  2. 2UNILEVER PLC427
  3. 3UNILEVER NV392
  4. 4UNILEVER GLOBAL IP LTD141
  5. 5HINDUSTAN UNILEVER LTD112
  6. 6UNILEVER IP HLDG BV106
  7. 7CONOPCO INC100
  8. 8NOVOZYMES AS70
  9. 9HENKEL KGAA58
  10. 10TANG MING37
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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The Numbers

Filing trend and technology composition

Two views of the same 3,141-record set: how filing volume has moved year over year, and which IPC subclasses the claims actually sit in.

Filing trend: a 2017 peak, then decline

Annual filings ran at 80 in 2017, the peak year in the set, eased to 57 by the 2022 midpoint, and had fallen to 4 by the most recent (partial) year — a pattern consistent with a maturing claim space rather than an emerging one.

Filing trend: a 2017 peak, then decline0204060808020172018201920202021202220232024202542026Most recent year is partial — publication lag means later filings are not yet visible.

Technology composition by IPC subclass

C11D covers essentially the entire set (3,140 of 3,141 records, 100.0%) by construction of the search. Beyond that core, C12N (microorganisms and genetic engineering, 5.7% of records) and D06L (bleaching and dry-cleaning, 4.8%) are the next-largest adjacent classes, followed by textile treatment (D06M, 4.1%) and smaller footprints in medicinal preparations, cosmetics use, dyes and condensation polymers. Records can carry more than one class, so these shares sum past 100%.

Technology composition by IPC subclassC11D · Detergents & cleaning composit…3,140100.0%C12N · Microorganisms & genetic engin…1805.7%D06L · Bleaching & dry-cleaning1514.8%D06M · Textile chemical treatment1294.1%A61K · Medicinal preparations943.0%A61Q · Cosmetics use912.9%C09B · Dyes & pigments (organic)822.6%C08G · Condensation polymers692.2%Other62319.8%

Shares are the percentage of the 3,141 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.

Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.

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Key Patents

Most-cited filings and a representative claim

Representative Filing
US20100041577A12010-02-18

US20100041577A1 — Ultra Concentrated Liquid Laundry Detergent (Melaleuca, Inc., filed 2010-02-18)

MELALEUCA, INC.

This disclosure relates to ultra concentrated liquid laundry detergent (e.g., 3x+ ultra concentrated liquid laundry detergent). For example, this disclosure relates to ultra concentrated liquid laundry detergent having superior water dispersibility at low temperatures (e.g., from about 14C to about 19C).Filed by a mid-size formulator rather than one of the ranked leaders, this record shows that cold-water dispersibility claims on concentrated formats were staked out well before the 2017 filing peak.

View full filing
Highest-cited records in scope
#Publication no.Patent titleCitations
1WO2008087497A1Laundry care composition comprising a whitening agent for cellulosic substrates1,345
2WO2003006602A2Subtilase variants937
3WO2002016547A2Subtilase enzymes929
4WO2007138054A1Cleaning compositions with amphiphilic graft polymers based on polyalkylene oxides and vinyl esters882
5US6221825B1Thickened, highly aqueous liquid detergent compositions877
6WO2000047708A1Low density particulate solids useful in laundry detergents819
7WO2006113314A1Liquid laundry detergent compositions with modified polyethyleneimine polymers and lipase enzyme772
8EP1876226A1Detergent compositions708
9WO2009087523A2A laundry detergent composition comprising glycosyl hydrolase696
10US6579839B2Liquid laundry detergent compositions having enhanced clay removal benefits329

Citation counts inside a searched corpus favour older filings; treat this table as a signal of influence on later art, not of current commercial importance.

Each row carries its publication number; clicking a row searches Eureka by that number.

Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Insights

What the data implies for a filing decision

Three read-throughs from the trend, the citation table and the assignee ranking, aimed at where to file next rather than where filing has already happened.

Filing Momentum
80 → 4
2017 peak vs. most recent year

The core surfactant and dosing claim space is largely staked

Annual filings fell from a 2017 peak of 80 to single digits by the latest partial year, with the 2022 midpoint at 57. That trajectory points to a claim space where the obvious formulation variants around surfactant systems and dosing have already been filed, not one still being actively opened up.

Read against the 2017-2026 trend
Citation Concentration
1,345 citations
top-cited record (WO2008087497A1)

Enzyme and polymer chemistry outrank base surfactant claims

The most-cited records in the set are a whitening-agent composition, two subtilase enzyme variant filings, and a graft-polymer cleaning composition — not general surfactant formulas. Later filers appear to build more on enzyme stability and polymer delivery mechanisms than on surfactant base chemistry.

Based on the five highest-cited records in scope
Assignee Structure
1,737 vs. 112
leader vs. fifth-place record count

One filer sits far ahead of a long tail

The leading assignee holds 1,737 records against 112 at fifth place and 37 at tenth, among the 100 companies the ranking covers. That gap is steep enough that a newcomer's freedom-to-operate analysis should treat the leader's portfolio as the primary blocking risk, not the ranking as a whole.

Ranking covers 100 assignees, counted in records
Eureka AI Agent
Looking for what nobody has claimed yet?

Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to laundry detergent formulation, with the prior art for and against each one.

Find the white space →
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players

Who is filing, and where activity has stalled

The ranking is dominated by a small cluster of related entities, and recent-year momentum across nearly all of them has turned sharply negative.

Leader
1,737 records
leading assignee

A single group holds the largest share of records in the ranking

The leading assignee's 1,737 records dwarf the rest of the field; the corresponding entity's recent-year filings dropped 92% year over year, suggesting the portfolio is now in a maintenance rather than expansion phase.

Latest-year momentum: -92% YoY
Related-Entity Cluster
289 co-filings
strongest co-assignee pair

Corporate structure fragments a single filer's activity across the ranking

The strongest co-assignee pairing in the dataset links two entities from the same corporate group at 289 shared filings, with two more group pairings at 59 and 58. Reading these entities separately in the ranking understates how concentrated ownership actually is.

10 co-assignee pairs identified in total
Momentum
0 in latest year
across three related entities

Recent-year filing has gone quiet across the top of the field

Several of the group's constituent entities show zero filings in the latest year, and a fourth entity's filings fell 100% year over year. Combined with the overall 2017-to-2026 trend, this points to a field where the largest holders are consolidating existing claims rather than adding new ones.

Recent-year momentum across ranked entities
🔍
Under-claimed branches worth a closer look
Adjacent classes with modest but real footprints suggest room to file without competing directly against the leader's core surfactant and enzyme claims.
cold-water enzyme stability blendstextile-safe malodor capture agentsunit-dose film compatibility with graft polymersbleach-safe dye-transfer inhibitioncondensation-polymer delivery vehicles
Rank all filers by momentum →
Recent-year filing momentum by assignee
AssigneeRecent yearYoY
Procter & Gamble Co.2-92%
Unilever Global IP Ltd.1-83%
Unilever PLC0
Unilever N.V.0
Hindustan Unilever Ltd.0
CONOPCO INC0-100%
Unilever IP Holdings B.V.0-100%
Novozymes A/S0
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next

Where to take this analysis

The dataset points to specific next steps depending on whether the goal is freedom-to-operate, whitespace filing, or portfolio benchmarking.

Run a freedom-to-operate check against the leader's portfolio

With one assignee holding 1,737 of the records in this ranking, any new filing in core surfactant or enzyme-stability claims should be checked against that portfolio specifically before checking the rest of the field.

Explore assignee portfolios in Eureka

Test claim language in the under-claimed adjacent classes

D06L, D06M and C08G each carry a real but modest footprint (4.8%, 4.1% and 2.2% of records respectively) — enough activity to confirm the branch is viable, not so much that it is closed off.

Draft and stress-test claims in Eureka

Watch for the next filing cycle before assuming the space is closed

The apparent decline to 2026 is partly a publication-lag artefact; a portfolio review timed to the next 18-month reporting window will show whether filings have genuinely stopped or are simply not yet published.

Track new publications in Eureka
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ

Common questions on laundry detergent formulation patents

Answers are grounded in the same dataset. Derived from a Patsnap search on Laundry Detergent Formulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.

Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.

Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.

Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.