| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 5 | |
| #3 | Belgium | 2 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Mechanical elements | |
| #5 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Measuring length, angles and areas | |
| #4 | Pipes | |
| #5 | Unspecified technologies | |
| #6 | Working stone | |
| #7 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lebourg Maurice P | 13 |
| #2 | Moorisu Pia Reboogu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5247923A | Method of forming a diamond drill bit element using laser trimming | |
| US4989578A | Method for forming diamond cutting elements for a diamond drill bit | |
| CA1314281C | Diamond drill bit | |
| CA1079060A | Joining underwater pipelines | |
| US4120095A | Method and apparatus for determining the spatial relationship between two misaligned tubular members | |
| US4041720A | Method and apparatus for installing a spool between two misaligned pipe sections | |
| US3640355A | Drill bit | |
| US3635296A | Drill bit construction | |
| US3621924A | Soft formation core barrel |