| Patents for Charles B. Richards |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 35,068 | Apr. 29, 1862 | J.F. Allen | Steam-engine | steam engines |
| 35,069 | Apr. 29, 1862 | J.F. Allen | Improvement in slide-valves for steam-engines | steam engine valve gear |
| 35,070 | Apr. 29, 1862 | J.F. Allen | Improved link-motion for steam-engines | steam engines |
| 35,071 | Apr. 29, 1862 | J.F. Allen | Improved valve-gear for steam-engines | steam engine valve gear |
| 117,682 | Aug. 01, 1871 | C.B. Richards | Improvement in bearings for machinery | steam engine indicators |
| 649,754 | May 15, 1900 | C.B. Richards | Pneumatic Tool | pneumatic tools |
| 665,033 | Jan. 01, 1901 | C.B. Richards | Pneumatic Tool | pneumatic tools |
| 666,025 | Jan. 15, 1901 | C.B. Richards | Lubricator | oil cups |
| 666,026 | Jan. 15, 1901 | C.B. Richards | Throttle Valve | valves |
| 695,415 | Mar. 11, 1902 | C.B. Richards | Pneumatic Riveter | riveting tools |
| 735,589 | Aug. 04, 1903 | C.B. Richards | Impact Tool | pneumatic tools |
| 745,239 | Nov. 24, 1903 | C.B. Richards | Pneumatic Tool | pneumatic tools |
