Helmets Limited
Herts, GB· latest recorded location
Helmets Limited is named on 6 US grants and 0 published applications in this corpus. Its most frequent classification is A42B (Hats).
- Granted patents
- 6
- Published applications
- 0
- Inventors
- 6
- Granted in 2026 so far
- 0
- Most recent grant
- 19 Jul 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
By publication year.
Technology areas
Share of 6 documents
Recent patents
- Helmets19 Jul 1994US 5,329,642 A
- Method of making a helmet liner28 Jun 1994US 5,324,460 A
- Helmet and visor mechanism therefor13 Mar 1990US 4,907,300 A
- Helmet with auxiliary, electrically operated service15 Mar 1988US 4,730,612 A
- Helmet with visor mechanism25 Feb 1986US 4,571,747 A
No published applications.
Most cited
By later US patents