Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
CP

Charles A. Parrish — 6 Patents

SPSperry: 3 patents #125 of 841Top 15%
HLHendrickson Usa, L.L.C.: 1 patents #100 of 165Top 65%
SRSperry Rand: 1 patents #22 of 84Top 30%
NANew Holland North America: 1 patents #157 of 69Top 230%
New Holland, PA: #52 of 177 inventorsTop 30%
Pennsylvania: #13,718 of 74,527 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Charles A. Parrish has been granted 6 US patents while listed as an inventor at Sperry. The first was granted in 1980 and the most recent in November 2013. Charles A. Parrish ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Charles A. Parrish in New Holland, PA, US.

Patents per Year

Patents granted per year, 1980 to 2013Bar chart with a peak of 2 patents in 1980.peak 21980: 2 patents19801981: 1 patents19811983: 1 patents19831987: 1 patents19872013: 1 patents2013

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8579510 Rotatable bar pin bushing assembly Shawn D. Noble, Hormoz Kerendian, Ashley Thomas Dudding, Louis F. Mattia 2013-11-12
4674403 Semi-automatic baler control and indicator system Cal L. Bryant, B. Franklin Griffin, Jr. 1987-06-23
4406221 Bale retainer for roll baling machine John H. Freimuth, Willis R. Campbell, Anthony F. Diederich, Jr., James T. Clevenger, Jr. 1983-09-27 $17,453,000
4242857 Override means for automatic bale ejection drive Richard E. Jennings 1981-01-06 $6,965,000
4238919 Automatic bale ejection drive override means 1980-12-16 $11,927,000
4218866 Automatic bale ejection drive 1980-08-26 $2,457,000