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  1. Technology classes
  2. /F · Mechanical engineering
  3. /F21 · Lighting
  4. /F21V · Functional features or details of lighting devices or systems thereof
  5. /F21V 37/00 · Details of lighting devices employing combustion as light source, not otherwise provided
  6. /F21V 37/0004 · Details of lighting devices employing combustion as light source, not otherwise provided
  7. /F21V 37/0041 · Fuel supply
  8. /F21V 37/0045
F21V 37/0045

Using hydrostatic pressure or weights

Official title: {using hydrostatic pressure or weights}

F21V37/0045 (Using hydrostatic pressure or weights) appears on 3 US grants and 2 published applications in this corpus.

Search patents in F21V

Where it sits

  1. FMechanical engineering
  2. F21Lighting
  3. F21VFunctional features or details of lighting devices or systems thereof
  4. F21V 37/00Details of lighting devices employing combustion as light source, not otherwise provided
  5. F21V 37/0004Details of lighting devices employing combustion as light source, not otherwise provided
  6. F21V 37/0041Fuel supply
  7. F21V 37/0045Using hydrostatic pressure or weights
Granted patents
3
Published applications
2
Assignees
0
Inventors
2
Latest grant
16 Apr 2024

Filings by year

Granted patentsPublished applications
F21V 37/0045: granted patents and published applications per publication year
YearGranted patentsPublished applications
201901
202020
202100
202200
202300
202411

201920202021202220232024

By publication year.

Recent patents

  • Torch system with predictive control of automatic fuel replenishment16 Apr 2024US 11,957,120 B2
  • Insect repellent torch system with automatic fuel replenishment24 Nov 2020US 10,842,146 B1
  • Vaporization pipe for a kerosene lamp6 Oct 2020US 10,794,593 B2
  • Torch system with predictive control of automatic fuel replenishment18 Jan 2024US 2024/0016140 A1
  • Vaporization pipe for a kerosene lamp4 Apr 2019US 2019/0101285 A1

Most cited

By later US patents
  • Insect repellent torch system with automatic fuel replenishment7US 10,842,146 B12020

Often classified with

  • F23DBurners5
  • A01MCatching, trapping or scaring of animals3
  • F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to3
  • Y02BEnergy-efficient buildings3
  • F23KFeeding fuel to combustion apparatus2
  • F21SNon-portable lighting devices1

Documents that also carry the other class.

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