Lockmasters, Inc.
14Patents
2Active
14Granted
45Portfolio score
Filing activity: Jan 20, 1987 → Oct 12, 2023 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6622534B1 | Dead bolt system having multiple security features | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5493882A | Drive apparatus and portable power source for computerized combination locks | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7007524B2 | Dead bolt lock system having multiple security features | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5984594A | Drill rig and method of use for forming holes in drill resistant materials | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7424814B2 | Dead bolt lock system having multiple security features | Emerging Cross-Sectional Technologies | 10 | Active |
| US6824335B2 | Lock drilling template | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4714386A | Locksmiths' method and apparatus for combination safes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4865493A | Apparatus and method for opening combination safes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6494067B1 | Drive apparatus and portable power source for computerized combination locks | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5553472A | Drive apparatus and portable power source for computerized combination locks | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5343723A | Combination lock | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6904778B2 | Mechanical combination lock | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6558088B1 | Security container drilling apparatus and method of cutting the lock bolt of a security container | Emerging Cross-Sectional Technologies | 1 | Expired |
| US11941389B1 | Systems and methods for providing customized firmware packages to a locking device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.