Datafile Limited
Willowdale, CA· latest recorded location
Datafile Limited is named on 18 US grants and 0 published applications in this corpus. Its most frequent classification is B42F (Sheets temporarily attached together).
- Granted patents
- 18
- Published applications
- 0
- Inventors
- 6
- Granted in 2026 so far
- 0
- Most recent grant
- 7 Jun 1988
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
By publication year.
Technology areas
Share of 18 documents
- B42FSheets temporarily attached together9
- Y10TTechnical subjects covered by former us classification9
- B65CLabelling or tagging machines, apparatus, or processes6
- G06KGraphical data reading6
- B65HHandling thin or filamentary material3
- G09FDisplaying3
- B31FMechanical working or deformation of paper, cardboard or material worked in a2
- B25CHand-held nailing or stapling tools1
- B65GTransport or storage devices1
Recent patents
- Reinforced file folder7 Jun 1988US 4,749,121 A
- Method of producing a reinforced file folder13 May 1986US 4,588,463 A
- Composite strip for add-on tab for file folder8 Apr 1986US 4,580,815 A
- Method of adding color coded labels to files18 Jun 1985US 4,523,776 A
- File hangers25 Sep 1984US 4,473,158 A
No published applications.
Most cited
By later US patents