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Harold Perkel

TDTdf: 1 patents #21 of 50Top 45%

Levittown, PA: #183 of 461 inventorsTop 40%

Pennsylvania: #30,495 of 74,527 inventorsTop 45%

Overall (All Time): #2,278,527 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5513809	Cryogenic vibratory mill apparatus	—	1996-05-07
4863106	Process for low temperature comminution of scrap tires	—	1989-09-05