Lars-Erik Tunell
Inventor
Stats
- 3 total patents issued
- 3 total patents filed
- most recent filing
This is official USPTO record data
Details
- 3 Issued Patents
- 3 Filed Patents
- 15 Total Citation Count
- May 23, 1991 Most Recent Filing
- Mar 21, 1984 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| SANTRADE LTD. | 1 1 1 | 1984 1988 1991 |
Inventor Addresses
| Address | Duration |
|---|---|
| Kings Langley, AU | May 23, 89 - May 23, 89 |
| Nelson Bay, AU | Jan 26, 93 - Jan 26, 93 |
| Sandviken, SE | Feb 25, 86 - Feb 25, 86 |
Technology Profile
| Technology | # of Patents | |
|---|---|---|
| E21B: | EARTH OR ROCK DRILLING | 3 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| RE34167 | 1993 | Drill bit and roller cutter for said drill bit | 4 |
| 4,832,136 | 1989 | Drill bit and roller cutter for said drill bit | 4 |
| 4,572,307 | 1986 | Rock drill | 7 |
