E04F 15/18
Separately-laid insulating layers
Official title: Separately-laid insulating layers; Other additional insulating measures; Floating floors (insulating of buildings in general E04B1/62)
E04F15/18 (Separately-laid insulating layers) appears on 685 US grants and 876 published applications in this corpus.
Search patents in E04F- Granted patents
- 685
- Published applications
- 876
- Assignees
- 376
- Inventors
- 1,126
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 14 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 4 |
| 2002 | 4 | 9 |
| 2003 | 10 | 18 |
| 2004 | 6 | 30 |
| 2005 | 7 | 28 |
| 2006 | 5 | 37 |
| 2007 | 8 | 30 |
| 2008 | 4 | 28 |
| 2009 | 16 | 26 |
| 2010 | 14 | 35 |
| 2011 | 20 | 22 |
| 2012 | 22 | 25 |
| 2013 | 30 | 40 |
| 2014 | 30 | 47 |
| 2015 | 42 | 40 |
| 2016 | 31 | 53 |
| 2017 | 40 | 51 |
| 2018 | 35 | 49 |
| 2019 | 41 | 36 |
| 2020 | 39 | 67 |
| 2021 | 31 | 41 |
| 2022 | 31 | 46 |
| 2023 | 34 | 34 |
| 2024 | 38 | 41 |
| 2025 | 27 | 26 |
| 2026 | 13 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04F 15/20For sound insulation277
- E04F 15/182Underlayers coated with adhesive or mortar to receive the flooring177
- E04F 15/185Underlayers in the form of studded or ribbed plates139
- E04F 15/181Insulating layers integrally formed with the flooring or the flooring elements96
- E04F 15/186Underlayers covered with a mesh or the like84
- E04F 15/187Underlayers specially adapted to be laid with overlapping edges35
- E04F 15/188Edge insulation strips7
Recent patents
- Insulating modular panel configuration15 Sep 2026US 12,735,903 B2
- Covering element for floor and a floor covering8 Sep 2026US 12,729,544 B2Unilin BV
- Portion of a flexible tongue25 Aug 2026US D1,143,920 S1Välinge Innovation AB · Design
- Building panels comprising a locking system14 Jul 2026US 12,680,315 B2Välinge Innovation AB
- Decorative panel and method of producing such a panel16 Jun 2026US 12,655,641 B2i4F Licensing NV
- Building panels comprising a locking system8 Oct 2026US 2026/0308917 A1Välinge Innovation AB
- Floor panel8 Oct 2026US 2026/0308921 A1Unilin BV
- Subfloor system and methods of construction thereof27 Aug 2026US 2026/0250963 A1Laccoo Outdoors, LLC
- Paver Supporting Apparatus20 Aug 2026US 2026/0243032 A1Hanover Prest-Paving Company
- Insulation structure for a floating floor heating system and fibrous insulation board20 Aug 2026US 2026/0243090 A1Ficotec Veredelungs GmbH
Most cited
By later US patents
- Resilient groove369US 7,584,583 B2Välinge Innovation AB · 2009
- Aerobic exercise floor system363US 4,819,932 A1989
- Mechanical locking system for panels and method of installing same280US 8,042,311 B2Välinge Innovation AB · 2011
- Floor tile269US 4,242,390 AAB Wicanders Korkfabriker · 1980
- Mechanical locking system for panels and method of installing same254US 7,841,144 B2Välinge Innovation AB · 2010