Bertonee Inc.
Calgary, CA· latest recorded location
Bertonee Inc. is named on 3 US grants and 0 published applications in this corpus. Its most frequent classification is H05B (Electric heating).
- Granted patents
- 3
- Published applications
- 0
- Inventors
- 7
- Granted in 2026 so far
- 0
- Most recent grant
- 4 Jul 1995
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
By publication year.
Technology areas
Share of 3 documents
- H05BElectric heating2
- A63FCard, board, or roulette games1
- A63JDevices for theatres, circuses, or the like1
- H01FMagnets1
- H02MApparatus for conversion between ac and ac, between ac and dc, or1
- Y02BEnergy-efficient buildings1
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1
Recent patents
- High power factor electronic transformer system for gaseous discharge tubes4 Jul 1995US 5,430,635 A
- Amusement device incorporating gas discharge tube18 Feb 1992US 5,089,745 A
- Digital controller for gas discharge tube20 Aug 1991US 5,041,767 A
No published applications.
Most cited
By later US patents