| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 29 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Machine tools | |
| #5 | Civil engineering | |
| #6 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Installation of electric cables | |
| #5 | Metal wire processing | |
| #6 | Unspecified technologies | |
| #7 | General building constructions | |
| #8 | Cables and insulators | |
| #9 | Accessories for machine tools | |
| #10 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Peirce Ralph S | 29 |
| Publication | Filing date | Title |
|---|---|---|
| US2199113A | Production of blanks for tamperproof seals | |
| US2158302A | Anchoring for concrete or the like | |
| US2203178A | Anchoring device | |
| US2187912A | Road anchoring means | |
| US2108942A | Tamperproof seal and method of production | |
| US1946808A | Package | |
| US2052793A | Anchoring device | |
| US1821401A | Attaching device | |
| US1848142A | Attaching device | |
| US1821400A | Anchorage device | |
| US1560095A | Anchoring device | |
| US1603292A | Fastening device | |
| US1516242A | Anchorage device | |
| US1479317A | Pipe clamp | |
| US1468074A | Anchoring device | |
| US1407570A | Attaching device | |
| US1357821A | Toggle-bolt | |
| US1357820A | Hose-coupling | |
| US1356401A | Anchorage device | |
| US1292034A | Pipe-holder. |