Hotwork Developments Ltd.
West Yorkshire, GB· latest recorded location
Hotwork Developments Ltd. is named on 5 US grants and 0 published applications in this corpus. Its most frequent classification is F23L (Supplying air or non-combustible liquids or gases to combustion apparatus in general).
- Granted patents
- 5
- Published applications
- 0
- Inventors
- 2
- Granted in 2026 so far
- 0
- Most recent grant
- 8 Jun 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
By publication year.
Technology areas
Share of 5 documents
- F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general5
- Y02EClean energy generation and storage5
- C03BManufacture, shaping, or supplementary processes1
- F23NRegulating or controlling combustion1
- F27BFurnaces, kilns, ovens or retorts in general1
- F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far1
- F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange1
- Y02PLow-carbon manufacturing1
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1
Recent patents
- Limiting the presence of the oxides of nitrogen in regenerative heating systems8 Jun 1993US 5,217,373 A
- Limiting the presence of the oxides of nitrogen in regenerative heating systems18 Sep 1990US 4,957,430 A
- Regenerator for a regenerative heating system28 Feb 1989US 4,807,695 A
- Limiting the presence of the oxides of nitrogen in regenerative heating systems6 Sep 1988US 4,768,949 A
- Operation of a pulse-fired burner31 May 1988US 4,747,771 A
No published applications.
Most cited
By later US patents
- Regenerator for a regenerative heating system15US 4,807,695 A1989
- Operation of a pulse-fired burner8US 4,747,771 A1988
- Limiting the presence of the oxides of nitrogen in regenerative heating systems8US 5,217,373 A1993
- Limiting the presence of the oxides of nitrogen in regenerative heating systems5US 4,768,949 A1988
- Limiting the presence of the oxides of nitrogen in regenerative heating systems4US 4,957,430 A1990