4-Iodoaniline - patents, research & applications

5,370Patents

22Research papers23 indexed in detail

239Patents - last 3 years

1Papers - last 3 years

Who owns the IP

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

#	Assignee	Patents
1	Pfizer Inc	241
2	Roche Holding AG	130
3	Bristol Myers Squibb Co	109
4	Johnson and Johnson	109
5	Sumitomo Chemical Co Ltd	89

6	Merck and Co Inc	85
7	Ligand Pharmaceuticals Inc	75
8	AstraZeneca PLC	71
9	Merck KGaA	70
10	Novartis AG	70

Explore the full landscape

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.

#	Code	Area	Patents
1	`C07D`	Heterocyclic compounds	3,605
2	`A61P`	Therapeutic activity (drug indications)	3,082
3	`A61K`	Medicinal preparations	1,861
4	`C07C`	Acyclic and carbocyclic compounds	1,501
5	`C07F`	Organometallic compounds	584

6	`C07B`	General methods of organic chemistry	320
7	`C09K`	Materials for misc. applications	267
8	`C08G`	Polymers from non-vinyl bonds (e.g. polyamides, polyesters)	218
9	`Y02P`	Climate change mitigation: production	181
10	`G01N`	Investigating / analysing materials	174

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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Representative patents

The filings that best characterise the patent activity around this compound, most-referenced first.

Title	Year	Assignee	Cited by
PRODUCTION OF P-IODOANILINE	1986	Asahi Kasei Corp	2
PREPARATION OF P-IODOANILINE	1978	Teijin Ltd	2
PREPARATION OF P-IODOANILINE	1978	Teijin Ltd	2
P-iodoaniline and preparation method thereof	2020		1

How research activity has moved

Papers published per year for this compound, over the last decade of indexed records.

Year	Papers
2023	1

Who's driving the science

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

#	Author	Affiliation	Papers
1	Stephen J. Blanksby	University of Wollongong	2
2	Christopher Glidewell	University of St Andrews	2
3	Adam J. Trevitt	University of Wollongong	2
4	Tony Ly	University of Wollongong	2
5	Todd W. Mitchell	University of Wollongong	2

6	Edith Sim	University of Oxford	2
7	J.M.S. Skakle	University of Aberdeen	2
8	Akane Kawamura	University of Oxford	2
9	J.L. Wardell	Universidade Federal do Rio de Janeiro	2
10	Robert Arbon	University of Oxford	1

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.

Title	Year	Cited by	Topic
Sorption and transport of iodine species in sediments from the Savannah River and Hanford Sites	2005	167	Groundwater flow and contamination studies
Differentiation of Complex Lipid Isomers by Radical-Directed Dissociation Mass Spectrometry	2012	157	Antioxidant Activity and Oxidative Stress
In Situ Synthesis of Thermochemically Reduced Graphene Oxide Conducting Nanocomposites	2012	119	Graphene research and applications
Purification, Characterization, and Crystallization of anN-HydroxyarylamineO-Acetyltransferase fromSalmonella typhimurium	1998	54	Protein Structure and Dynamics
Measurement of conjugated and unconjugated bilirubin in bile. II. A new thin-layer chromatographic method.	1976	30	Folate and B Vitamins Research

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 4-iodoaniline?

4-Iodoaniline has the molecular formula C6H6IN with a molecular weight of 219.0255 g/mol.

Which companies have the most patent filings involving 4-iodoaniline?

Pfizer Inc leads with 241 patents, followed by Roche Holding AG with 130 patents, and Bristol Myers Squibb Co and Johnson and Johnson each with 109 patents.

What is the patent filing trend for 4-iodoaniline over the past decade?

Patent filings peaked in 2017 with 223 filings and have generally declined since then, with 145 filings in 2024 and only 57 through 2025. The total patent count is 5,370 with 239 filings in the last 3 years.

What are the primary technical areas associated with 4-iodoaniline patents?

The most common CPC subclass is C07D (heterocyclic compounds) with 3,605 patents, followed by A61P (pharmaceutical activities) with 3,082 patents and A61K (preparations for medical purposes) with 1,861 patents.

What alternative names are used for 4-iodoaniline?

4-Iodoaniline is also known by several synonyms including p-iodoaniline, 4-iodobenzenamine, p-iodo-phenylamine, p-aminophenyl iodide, and para-amino-iodo-benzene.