Registered entities
Petra Pharma Corporation
Reg. No. 5831269United States
Innovation
27 patent families (8 granted) — focus: Chemistry & metallurgy, Human necessities; filing pace accelerating. Cited 519 times.
| Year | Filings |
|---|---|
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 12 |
| 2024 | 12 |
| 2025 | 13 |
Investor mix
11 investors on record; lead investors include AbbVie, Alexandria, Arch Venture Partners, Lilly.
| Investor type | Count | Share |
|---|---|---|
| Venture capital | 4 | 36% |
| Angel & family office | 1 | 9% |
| Other / undisclosed | 6 | 55% |