Roy S Jefferies
Inventor
Stats
- 4 US patents issued
- 4 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 4 US Patents Issued
- 4 US Applications Filed
- 106 Total Citation Count
- Nov 21, 1988 Most Recent Filing
- Feb 17, 1987 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| LOWE & FLETCHER LIMITED | 3
| 1987
|
Inventor Addresses
| Address | Duration |
|---|---|
| Bridgnorth, GB | Dec 13, 88 - Aug 08, 89 |
| Wilcot Cottage, 64 Linley Brook, Bridgnorth, Shropshire, GB | Apr 17, 90 - Apr 17, 90 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| E05B: | LOCKS; ACCESSORIES THEREFOR; HANDCUFFS | 2 |
| G06K: | RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS | 2 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 4916927 | 1990 | Lock and method of securing and releasing a member | 32 |
| 4854146 | 1989 | Security device and method | 16 |
| 4810861 | 1989 | Information carrier and reader | 12 |
| 4791280 | 1988 | Method of operating a security device, security device and data carriers for use in the method | 37 |
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