| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 62 | |
| #2 | Canada | 7 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Machine tools | |
| #5 | Transport | |
| #6 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Percussive tools | |
| #4 | Metal tempering | |
| #5 | Couplings | |
| #6 | Lifting and pushing | |
| #7 | Winches | |
| #8 | Unspecified technologies | |
| #9 | Dredging | |
| #10 | Rail vehicle suspensions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gilman George H | 69 |
| #2 | Brown James H | 3 |
| #3 | Robertson Henry M | 2 |
| #4 | Player John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2807205A | Fruit juicers | |
| US2209079A | Tool | |
| US1635934A | Drilling machine | |
| US1616490A | Drilling machine | |
| US1566395A | Drilling machine | |
| US1616489A | Drilling machine | |
| US1616487A | Drilling machine | |
| US1616486A | Drilling machine | |
| US1616488A | Drilling machine | |
| US1740813A | Drilling machine | |
| US1596873A | Drilling machine | |
| US1757767A | Pneumatic hammer | |
| US1750316A | Material-handling apparatus | |
| US1583288A | Drilling machine | |
| US1608979A | Winch | |
| US1690859A | Drilling machine | |
| US1590239A | Rock-drill support | |
| US1543765A | Drilling machine | |
| US1592662A | Heat-treating machine | |
| US1632400A | Drilling machine |