C08G 18/44
Polycarbonates
C08G18/44 (Polycarbonates) appears on 1,099 US grants and 1,633 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,099
- Published applications
- 1,633
- Assignees
- 543
- Inventors
- 3,351
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 17 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 17 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 5 |
| 2002 | 13 | 14 |
| 2003 | 18 | 24 |
| 2004 | 10 | 18 |
| 2005 | 11 | 21 |
| 2006 | 9 | 26 |
| 2007 | 14 | 43 |
| 2008 | 12 | 29 |
| 2009 | 10 | 60 |
| 2010 | 18 | 37 |
| 2011 | 22 | 65 |
| 2012 | 22 | 61 |
| 2013 | 31 | 49 |
| 2014 | 43 | 58 |
| 2015 | 40 | 62 |
| 2016 | 35 | 69 |
| 2017 | 40 | 83 |
| 2018 | 49 | 91 |
| 2019 | 58 | 101 |
| 2020 | 67 | 128 |
| 2021 | 73 | 123 |
| 2022 | 72 | 132 |
| 2023 | 82 | 105 |
| 2024 | 77 | 90 |
| 2025 | 69 | 82 |
| 2026 | 41 | 57 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Curable photochromic composition22 Sep 2026US 12,742,037 B2Transitions Optical, Inc.
- Solventless adhesive compositions and laminate materials prepared with the same15 Sep 2026US 12,735,612 B2Arkema France
- Dispersions that are substantially free of volatile organic compounds and that have a high solids content8 Sep 2026US 12,729,266 B2Stahl International B.V.
- Flame retardant polyamide11 Aug 2026US 12,703,772 B2BASF SE
- Laminate including surface layer having scratch resistance and matte properties and surface coating composition11 Aug 2026US 12,703,803 B23M Innovative Properties Company
- Resin composition, resin solution, and method for producing crosslinked coating film8 Oct 2026US 2026/0308304 A1Mitsubishi Gas Chemical Company, Inc.
- Composition and method for producing same, urethane resin, aqueous urethane resin dispersion, and coating agent24 Sep 2026US 2026/0286037 A1Tosoh Corporation
- Dual cure 3d printing resins17 Sep 2026US 2026/0275022 A1Stratasys, Inc.
- Use of Thermolatent Catalyst to Improve Properties of Single-Layer Polyurethane Coatings17 Sep 2026US 2026/0275062 A1Covestro Deutschland AG
- Aqueous dispersion of polyurethane resin and coating agent3 Sep 2026US 2026/0258186 A1DKS Co. Ltd.
Most cited
By later US patents
- Hydrophilic and hydrophobic polyether polyurethanes and uses therefor530US 5,993,972 ATyndale Plains-Hunter, Ltd. · 1999
- Surface-modifying endgroups for biomedical polymers517US 5,589,563 AThe Polymer Technology Group · 1996
- Systems for premeating molecules of predetermined molecular weight range361US 5,756,632 AThe Polymer Technology Group · 1998
- Functionalized polyurethanes309US 6,177,523 B1CardioTech International, Inc. · 2001
- Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range303US 5,428,123 AThe Polymer Technology Group · 1995