Registered entities
AMPHASTAR PHARMACEUTICALS, INC.
Reg. No. 330702205United States
Innovation
32 patent families (22 granted) — focus: Human necessities, Chemistry & metallurgy, Operations & transport, Physics & computing; filing pace slowing. Cited 1,067 times.
| Year | Filings |
|---|---|
| 2015 | 1 |
| 2016 | 6 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 10 |
| 2022 | 3 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 1 |
Investor mix
4 investors on record; 1 has since exited.
| Investor type | Count | Share |
|---|---|---|
| Venture capital | 1 | 25% |
| Private equity | 1 | 25% |
| Other / undisclosed | 2 | 50% |