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AMPS

2-methyl-2-(prop-2-enoylamino)propane-1-sulfonic acid · also: acryloyldimethyltaurine, tert-Butylacrylamidesulfonic acid, tert-butylacrylamidosulfonic acid, acrylamide tert-butylsulfonic acid, acrylamidomethylpropanesulfonic acid, Polyacrylamidomethylpropane sulfonic acid

FormulaC7H13NO4S
Mol. weight207.244
PubChem CID65360
InChIKeyXHZPRMZZQOIPDS-UHFFFAOYSA-N
SMILESCC(C)(CS(=O)(=O)O)NC(=O)C=C
91,675Patents
168Research papers
8,786Patents - last 3 years
5Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1BASF SE7,130
2Henkel AG and Co KGaA3,319
3Rohm and Haas Co2,686
4LOreal SA2,242
5Procter and Gamble Co2,085
6Halliburton Energy Services Inc1,987
73M Innovative Properties Co1,696
8Konica Minolta Inc1,599
9Fujifilm Holdings Corp1,419
10Eastman Kodak Co1,172

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This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1C08FPolymers from C=C unsaturated bonds25,010
2C08LPolymer compositions (blends)15,729
3A61KMedicinal preparations14,291
4C09KMaterials for misc. applications11,280
5C09DCoatings, paints, varnishes10,918
6A61QCosmetics, personal care10,890
7C11DDetergents, cleaning compositions7,341
8C08KPolymer compositions (additives)7,138
9C08JWorking-up of plastics6,939
10Y10TCross-reference (technical subjects)6,044

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Most-cited patents

Patents ranked by forward citations reveal the foundational inventions the field continues to build on.

TitleYearAssigneeCited by
Synergistic thickener mixtures of amps polymers with other thickeners1985Henkel Corp93
Water-soluble copolymer of acrylamidomethylpropanesulfonic acids salts1982Sanofi Aventis Deutschland GmbH83
Well cementing method using an AM/AMPS fluid loss additive blend1986BJ Services Co USA82
Cement composition with polymeric latexes prepared in the presence of amps seed2002Omnova Solutions Inc81
AMPS copolymer emulsions with improved stability1993EXXON CHEMICAL PATENTS INC.51

Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Advanced Polymer Synthesis and Characterization1
2Laser Applications in Dentistry and Medicine1
3Radioactive element chemistry and processing1

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Christopher P. PalmerUniversity of Montana5
2František ŠvecLawrence Berkeley National Laboratory5
3Julio San RománInstituto de Ciencia y Tecnología de Polímeros5
4Benjawan BoonkaewChildren's Medical Research Institute4
5Leila CuttleQueensland Children’s Medical Research Institute4
6Margit KempfQueensland Children’s Medical Research Institute4
7María Rosa AguilarInstituto de Ciencia y Tecnología de Polímeros4
8Roy KimbleQueensland Children’s Medical Research Institute4
9Ryo YoshidaThe University of Tokyo4
10Akihito HashidzumeThe University of Osaka3

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular formula and weight of AMPS?

AMPS has the molecular formula C7H13NO4S and a molecular weight of 207.244 g/mol. Its canonical chemical name is 2-methyl-2-(prop-2-enoylamino)propane-1-sulfonic acid.

Which organizations hold the most patents involving AMPS?

BASF SE leads with 7,130 patents involving AMPS, followed by Henkel AG and Co KGaA with 3,319 patents, and Rohm and Haas Co with 2,686 patents. Other major patent holders include LOreal SA, Procter and Gamble Co, and Halliburton Energy Services Inc.

What are the primary research applications documented in academic literature on AMPS?

Published research on AMPS focuses on several key applications. A highly-cited work examined removal of toxic metal ions with magnetic hydrogels. Other notable applications include use in organic polymer monoliths as stationary phases for capillary HPLC, design of self-oscillating gels for mass transport, antimicrobial silver hydrogel dressings, and pH-sensitive hydrogels for pharmaceutical delivery.

What is the patent classification breakdown for AMPS-related inventions?

AMPS patents are distributed across multiple CPC subclasses. The leading classifications are C08F (Macromolecular compounds, organic) with 25,006 patents, C08L (Compositions of macromolecular compounds) with 15,729 patents, and A61K (Preparations for medical purposes) with 14,290 patents. Other significant categories include C09K, C09D, A61Q, and C11D.

How has patent activity for AMPS evolved in recent years?

AMPS patent filings show sustained activity with notable recent trends. Annual patent counts increased from 3,265 in 2016 to a peak of 4,335 in 2022, followed by 4,187 in 2023 and 4,149 in 2024. The partial 2025 data shows 2,294 patents, though this likely reflects incomplete year coverage. In contrast, academic paper output has remained modest, with 168 total papers in the database and only 5 papers published in the last three years.

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