C12N 2533/40
Polyhydroxyacids
Official title: Polyhydroxyacids, e.g. polymers of glycolic or lactic acid (PGA, PLA, PLGA); Bioresorbable polymers
C12N2533/40 (Polyhydroxyacids) appears on 382 US grants and 668 published applications in this corpus.
Search patents in C12N- Granted patents
- 382
- Published applications
- 668
- Assignees
- 367
- Inventors
- 1,532
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 6 | 0 |
| 1996 | 14 | 0 |
| 1997 | 6 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 1 |
| 2002 | 4 | 18 |
| 2003 | 5 | 18 |
| 2004 | 5 | 24 |
| 2005 | 10 | 21 |
| 2006 | 3 | 27 |
| 2007 | 4 | 21 |
| 2008 | 11 | 26 |
| 2009 | 8 | 27 |
| 2010 | 10 | 32 |
| 2011 | 17 | 31 |
| 2012 | 11 | 25 |
| 2013 | 12 | 26 |
| 2014 | 32 | 23 |
| 2015 | 12 | 34 |
| 2016 | 12 | 18 |
| 2017 | 22 | 18 |
| 2018 | 9 | 28 |
| 2019 | 15 | 22 |
| 2020 | 15 | 41 |
| 2021 | 14 | 36 |
| 2022 | 10 | 46 |
| 2023 | 23 | 35 |
| 2024 | 20 | 26 |
| 2025 | 15 | 29 |
| 2026 | 15 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tissue engineered vascular grafts29 Sep 2026US 12,746,309 B2Medtronic, Inc.
- Engineered fibrillar extracellular matrix networks for three-dimensional (3D) cellular support systems25 Aug 2026US 12,716,052 B2The Regents of the University of Michigan
- Reinforced biocompatible scaffold4 Aug 2026US 12,697,416 B2Global Surgical Innovations Pty Ltd
- Woven cell culture substrates, bioreactor systems using the same, and related methods4 Aug 2026US 12,698,468 B2Corning Incorporated
- Encapsulated liver tissue16 Jun 2026US 12,655,392 B2Morphocell Technologies Inc.
- Multi-Layered Graft for Tissue Engineering Applications27 Aug 2026US 2026/0248984 A1Ri.MED Foundation
- Injectable off-the- shelf cartilage, tendon, and ligament repair compositions and methods of use13 Aug 2026US 2026/0234550 A1Epibone, Inc.
- Composite nanofibrous scaffold enhances in vitro hepatocytes' drug clearance profiles to align with human physiology13 Aug 2026US 2026/0234562 A1University of Maryland, Baltimore County
- Integrated system for 3d tissue culture16 Jul 2026US 2026/0201291 A1Valo Health, Inc.
- Integrated system for 3d tissue culture16 Jul 2026US 2026/0201292 A1Valo Health, Inc.
Most cited
By later US patents
- Device for priming for improved adherence of gels to substrates1,210US 5,749,968 AFocal, Inc. · 1998
- Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers896US 5,410,016 ABoard of Regents, The University of Texas System · 1995
- Mesenchymal stem cells for cartilage repair617US 5,906,934 AMorphoGen Pharmaceuticals, Inc. · 1999
- Gels for encapsulation of biological materials587US 5,858,746 ABoard of Regents, The University of Texas System · 1999
- Neomorphogenesis of cartilage in vivo from cell culture493US 5,041,138 AChildren's Hospital, Inc. · 1991