Who owns the IP
The organizations most actively patenting around this compound, ranked by referenced patent volume.
| # | Assignee | Patents |
|---|---|---|
| 1 | Merck and Co Inc | 2,496 |
| 2 | Pfizer Inc | 2,286 |
| 3 | AbbVie Inc | 1,346 |
| 4 | Roche Holding AG | 1,073 |
| 5 | Sanofi SA | 780 |
| 6 | Eli Lilly and Co | 735 |
| 7 | GSK PLC | 723 |
| 8 | Bayer AG | 647 |
| 9 | Johnson and Johnson | 640 |
| 10 | Dexcom Inc | 597 |
Explore the full landscape
This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.
Visit CyprisWhere innovation is concentrated
Patent classifications ranked by volume reveal the technical domains with the most active filing.
| # | Code | Area | Patents |
|---|---|---|---|
| 1 | A61P | Therapeutic activity (drug indications) | 52,308 |
| 2 | A61K | Medicinal preparations | 44,422 |
| 3 | C07D | Heterocyclic compounds | 26,243 |
| 4 | C07K | Peptides | 7,832 |
| 5 | G01N | Investigating / analysing materials | 6,549 |
| 6 | C07C | Acyclic and carbocyclic compounds | 6,083 |
| 7 | C12N | Microorganisms, enzymes | 5,220 |
| 8 | A61B | 4,241 | |
| 9 | A61N | 2,945 | |
| 10 | C12Q | Measuring/testing involving enzymes | 2,935 |
AI mapped opportunity space
This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.
See Cypris in actionRepresentative patents
The filings that best characterise the patent activity around this compound, most-referenced first.
| Title | Year | Assignee | Cited by |
|---|---|---|---|
| PROCESS FOR PREPARATION OF (DL) -NOREPINEPHRINE ACID ADDITION SALT, A KEY INTERMEDIATE OF (R) - (-) - NOREPINEPHRINE | 2013 | 17 |
How research activity has moved
Papers published per year for this compound, over the last decade of indexed records.
| Year | Papers |
|---|---|
| 2016 | 403 |
| 2017 | 358 |
| 2018 | 390 |
| 2019 | 399 |
| 2020 | 359 |
| 2021 | 311 |
| 2022 | 417 |
| 2023 | 346 |
| 2024 | 309 |
| 2025 | 135 |
| 2026 | 2 |
Who's driving the science
The most-published authors working with this compound, alongside their primary affiliations.
| # | Author | Affiliation | Papers |
|---|---|---|---|
| 1 | Irwin J. Kopin | National Institute of Mental Health | 123 |
| 2 | Kjell Fuxé | Karolinska Institutet | 86 |
| 3 | Murray Esler | Baker Heart and Diabetes Institute | 76 |
| 4 | Klaus Starke | University of Freiburg | 71 |
| 5 | Gavin Lambert | Baker Heart and Diabetes Institute | 54 |
| 6 | David S. Goldstein | National Institute of Neurological Disorders and Stroke | 53 |
| 7 | Geoffrey Burnstock | University College London | 45 |
| 8 | Michael G. Ziegler | University of California San Diego | 43 |
| 9 | Niels Juel Christensen | Herlev Hospital | 43 |
| 10 | Shigetoshi Chiba | Shinshu University | 40 |
Research leaders
This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.
See Cypris in actionThe literature that defines it
The most-cited papers anchoring the scientific record for this compound.
| Title | Year | Cited by | Topic |
|---|---|---|---|
| Brown Adipose Tissue: Function and Physiological Significance | 2004 | 6437 | Adipokines, Inflammation, and Metabolic Diseases |
| AN INTEGRATIVE THEORY OF LOCUS COERULEUS-NOREPINEPHRINE FUNCTION: Adaptive Gain and Optimal Performance | 2005 | 4661 | Neurotransmitter Receptor Influence on Behavior |
| Stereotaxic Mapping of the Monoamine Pathways in the Rat Brain* | 1971 | 3821 | Neurotransmitter Receptor Influence on Behavior |
| A Systematic Method for Clinical Description and Classification of Personality Variants | 1987 | 3702 | Neurotransmitter Receptor Influence on Behavior |
| Stress and disorders of the stress system | 2009 | 3213 | Stress Responses and Cortisol |
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 Noradrop?
Which companies hold the most patents related to Noradrop?
What is the scale of research and patenting activity around Noradrop?
Which researchers have published the most papers on Noradrop?
What patent classification areas dominate Noradrop-related patents?