| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Germany | 2 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | United States | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mathes Guenther | 5 |
| #2 | Walser Werner | 4 |
| #3 | Schneider Robert | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0448506A2 | Folding ruler | |
| WO8601285A1 | Slide gauge with driving wheel | |
| DE3434993A1 | Caliper | |
| DE3339992A1 | Sliding vernier calliper with a dial gauge | |
| CH590450A5 | Precision caliper rule with replacement guides - has replaceable pads in slider located in groove in measuring rod | |
| CH584881A5 | Sliding caliper measuring inner and outer surfaces - has two sets of jaws and thumb controlled spring locking mechanism | |
| CH570601A5 | Folding rule with plastic interlocking links - links joined in pairs by resiliently-held bolts through end holes |