| Patents for John S. Hollingshead |
Patents 16 -
30
of 46
      |
| Number | Date | Patentee | Title | Type |
| 17,626 | Jun. 23, 1857 | J. Haw | Picket-sawing machine | circular sawmills |
| 18,312 | Sep. 29, 1857 | T.D. Worrall | Multiform Molding Plane | plane handles |
| 18,860 | Dec. 15, 1857 | T.T. Prosser | Portable sawmill | circular sawmills |
| 20,493 | Jun. 08, 1858 | H.L. Kendell | Wedged-shaped Mouthpiece | plane throat adjustments |
| 21,495 | Sep. 14, 1858 | G. Hely | Horse Power | animal powered apparatus |
| 21,856 | Oct. 19, 1858 | W. Steele | Machine for cutting staves from the bolt | barrel making machines |
| 23,320 | Mar. 22, 1859 | A.M. Sprague | Apparatus for Skimming of the Water in Steam-Boilers | stationary boilers |
| 24,045 | May 17, 1859 | J. Murphy | Metal-drill | drill presses |
| 24,901 | Jul. 26, 1859 | J.N. Wyckoff, T.M. Fell | Ore Washer and Amalgamator | ore processing apparatus |
| RE900 | Feb. 14, 1860 | G. Westinghouse, Sr. | Improvement in endless-chain horse-powers | animal powered apparatus |
| 29,062 | Jul. 10, 1860 | G.W. Corson | Machine for sawing bevels on laths | lath making machines |
| 29,761 | Aug. 28, 1860 | L. Bradley | Improvements in Telegraphic Apparatus | |
| 30,343 | Oct. 09, 1860 | E. Paye | Power Hammer | trip and helve hammers |
| 34,033 | Dec. 24, 1861 | J. Young | Improvement in Machines for Removing the Huskd from Corn | corn huskers |
| 34,360 | Feb. 11, 1862 | J.W. Griffiths | Improvement in ship-building | |
