Spectral Efficiency Ltd.
Northhamptonshire, GB· latest recorded location
SPECTRAL EFFICIENCY LTD. is named on 1 US grants and 2 published applications in this corpus. Its most frequent classification is G09B (Educational or demonstration appliances).
- Granted patents
- 1
- Published applications
- 2
- Inventors
- 1
- Granted in 2026 so far
- 0
- Most recent grant
- 14 Oct 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
By publication year.
Technology areas
Share of 3 documents
Recent patents
Most cited
By later US patents