Description
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE (combustion apparatus F23)
F27D
Technology
Sub-Class
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- 0 2186 US PATENTS IN FORCE
- 547 US APPLICATIONS PENDING
- 2645 Total Patent Owners
- 11368 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) |
| 1/02 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) Crowns; Roofs |
| 1/04 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used |
| 1/06 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used Composite bricks or blocks |
| 1/08 | Casings; Linings; Walls; Roofs (refractory materials C04B; firebridges for combustion chambers F23M 3/00) characterised by the form of the bricks or blocks used Composite bricks or blocks Bricks or blocks with internal reinforcement or metal backing |
Recent Patents
Not AvailableRecent Publications
Not AvailableTop Owners in This Class
Top Owners in This Subclass
Applications Filed in This Class - By Year
Applications Filed in This Subclass - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 37 Months (last 2 years Issuances)
- 37 Months (last 5 years Issuances)
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