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  1. Technology classes
  2. /E · Fixed constructions
  3. /E04 · Building
  4. /E04F · Finishing work on buildings
  5. /E04F 13/00 · Coverings or linings
  6. /E04F 13/07 · Composed of covering or lining elements
  7. /E04F 13/21 · Fastening means specially adapted for covering or lining elements
  8. /E04F 13/26 · Edge engaging fastening means
  9. /E04F 13/28
E04F 13/28

Adjustable

Official title: adjustable {(not used, see E04F13/0801)}

E04F13/28 (Adjustable) appears on 18 US grants and 21 published applications in this corpus.

Search patents in E04F

Where it sits

  1. EFixed constructions
  2. E04Building
  3. E04FFinishing work on buildings
  4. E04F 13/00Coverings or linings
  5. E04F 13/07Composed of covering or lining elements
  6. E04F 13/21Fastening means specially adapted for covering or lining elements
  7. E04F 13/26Edge engaging fastening means
  8. E04F 13/28Adjustable
Granted patents
18
Published applications
21
Assignees
4
Inventors
9
Latest grant
21 Jul 2026

Filings by year

Granted patentsPublished applications
E04F 13/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
200401
200510
200601
200700
200800
200900
201011
201100
201203
201331
201414
201531
201634
201720
201801
201910
202001
202112
202200
202310
202400
202501
202610

200420142026

By publication year. 2026 runs to 8 Oct.

Recent patents

  • Modular wall system21 Jul 2026US 12,687,014 B2Allsteel Inc.
  • Modular wall system15 Aug 2023US 11,725,382 B2Allsteel Inc.
  • Modular wall system23 Feb 2021US 10,927,545 B2Allsteel Inc.
  • Modular wall system4 Jun 2019US 10,309,102 B2Allsteel Inc.
  • Modular wall system19 Sep 2017US 9,765,518 B2Allsteel Inc.
  • Device for fastening a panel to a facade26 Jun 2025US 2025/0207408 A1
  • Modular wall system16 Sep 2021US 2021/0285209 A1Allsteel Inc.
  • Modular wall system10 Jun 2021US 2021/0172168 A1Allsteel Inc.
  • Modular wall system23 Jan 2020US 2020/0024846 A1Allsteel Inc.
  • Modular wall system5 Apr 2018US 2018/0094430 A1Allsteel Inc.

Most cited

By later US patents
  • Connector and system for supporting veneer panels48US 6,973,756 B22005
  • Modular wall system39US 8,601,749 B2Allsteel Inc. · 2013
  • Modular wall system33US 8,615,936 B2Allsteel Inc. · 2013
  • Modular wall system32US 8,613,168 B2Allsteel Inc. · 2013
  • Modular wall system30US 9,284,729 B2Allsteel Inc. · 2016

Top assignees

Documents
  • AAllsteel Inc.20
  • FCFiber Cement Foam Systems Insulation, LLC8
  • FFero Corporation2
  • TITechniwood International2

Often classified with

  • E04BGeneral building constructions27
  • Y10TTechnical subjects covered by former us classification25
  • E04CStructural elements20
  • F16BDevices for fastening or securing constructional elements or machine parts together13
  • F16MFrames, casings or beds of engines, machines or apparatus, not specific to5

Documents that also carry the other class.

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© 2026 patentgrepData from USPTO bulk files