C08G 18/40
High-molecular-weight compounds
Official title: High-molecular-weight compounds {(C08G18/2805 takes precedence)}
C08G18/40 (High-molecular-weight compounds) appears on 14,149 US grants and 14,100 published applications in this corpus.
Search patents in C08G- Granted patents
- 14,149
- Published applications
- 14,100
- Assignees
- 3,474
- Inventors
- 27,089
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 155 | 0 |
| 1977 | 135 | 0 |
| 1978 | 168 | 0 |
| 1979 | 131 | 0 |
| 1980 | 162 | 0 |
| 1981 | 203 | 0 |
| 1982 | 149 | 0 |
| 1983 | 169 | 0 |
| 1984 | 203 | 0 |
| 1985 | 226 | 0 |
| 1986 | 173 | 0 |
| 1987 | 206 | 0 |
| 1988 | 216 | 0 |
| 1989 | 262 | 0 |
| 1990 | 192 | 0 |
| 1991 | 283 | 0 |
| 1992 | 300 | 0 |
| 1993 | 242 | 0 |
| 1994 | 239 | 0 |
| 1995 | 177 | 0 |
| 1996 | 201 | 0 |
| 1997 | 231 | 0 |
| 1998 | 281 | 0 |
| 1999 | 291 | 0 |
| 2000 | 248 | 0 |
| 2001 | 228 | 66 |
| 2002 | 292 | 300 |
| 2003 | 312 | 446 |
| 2004 | 240 | 459 |
| 2005 | 194 | 422 |
| 2006 | 257 | 409 |
| 2007 | 169 | 453 |
| 2008 | 140 | 407 |
| 2009 | 135 | 479 |
| 2010 | 221 | 565 |
| 2011 | 240 | 555 |
| 2012 | 292 | 530 |
| 2013 | 360 | 558 |
| 2014 | 413 | 560 |
| 2015 | 414 | 586 |
| 2016 | 427 | 592 |
| 2017 | 451 | 628 |
| 2018 | 432 | 613 |
| 2019 | 496 | 729 |
| 2020 | 499 | 820 |
| 2021 | 517 | 822 |
| 2022 | 447 | 880 |
| 2023 | 490 | 678 |
| 2024 | 516 | 652 |
| 2025 | 449 | 508 |
| 2026 | 275 | 383 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/48Polyethers6,736
- C08G 18/42Polycondensates having carboxylic or carbonic ester groups in the main chain4,781
- C08G 18/62Polymers of compounds having carbon-to-carbon double bonds2,235
- C08G 18/4009Two or more macromolecular compounds not provided for in one single group2,025
- C08G 18/64Macromolecular compounds not provided for by groups c08g18/42 - c08g18/631,058
- C08G 18/61Polysiloxanes728
- C08G 18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds707
- C08G 18/58Epoxy resins429
Recent patents
- Cover coating with good adhesion on polyurethane and polyurea membranes6 Oct 2026US 12,753,267 B2Sika Technology AG
- Thermoplastic polyurethane based polymeric electrolyte composition6 Oct 2026US 12,753,268 B2Huntsman International LLC
- Adhesive member and display device including the same6 Oct 2026US 12,753,269 B2Samsung Display Co., Ltd.
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Non-aqueous cross-linkable composition6 Oct 2026US 12,753,324 B2Allnex Resins (China) Co., Ltd.
- Method for producing catalyst composition and method for producing polyurethane foam8 Oct 2026US 2026/0308303 A1Nitto Kasei Co., Ltd.
- Resin composition, resin solution, and method for producing crosslinked coating film8 Oct 2026US 2026/0308304 A1Mitsubishi Gas Chemical Company, Inc.
- Stabilizers for polymer foams based on recycling of polydimethylsiloxane8 Oct 2026US 2026/0308305 A1Evonik Operations GmbH
- Recycleable bioplastics, methods of manufacture thereof and articles comprising the same8 Oct 2026US 2026/0308306 A1University of Connecticut
- Lamination adhesive8 Oct 2026US 2026/0308430 A1Bostik SA
Most cited
By later US patents
- Radiation-curable coating compounds1,477US 6,605,669 B2E. I. Du Pont de Nemours and Company · 2003
- Process for preparing amide acetals1,464US 7,439,354 B2E. I. Du Pont de Nemours and Company · 2008
- Wound dressing materials1,148US 4,233,969 A1980
- Fast curing compositions996US 6,894,140 B2Tyco Healthecare Gropu LP · 2005
- At least partially resorbable reticulated elastomeric matrix elements and methods of making same952US 9,050,176 B2Biomerix Corporation · 2015