Inventor
POTTORFF EARL T
US18 patents
⚠️ This page may combine multiple inventors who share the name “POTTORFF EARL T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POTTORFF EARL T
8 patentsUS7976400B1Jul 12, 2011
Golf putter with adjustable lie
POTTORFF EARL T38 citations92
US4852442AAug 1, 1989
Self-sharpening perforator for plastic film
POTTORFF EARL T24 citations92
US4723466AFeb 9, 1988
Self-sharpening hole punch for packaging with resilient waste expelling mechanism
POTTORFF EARL T22 citations81
US4943226AJul 24, 1990
Cover for collapsing board
POTTORFF EARL T7 citations73
US4898082AFeb 6, 1990
Molded plastic air cylinder
POTTORFF EARL T11 citations73
US4653372AMar 31, 1987
Self-sharpening hole punch for plastic bags
POTTORFF EARL T8 citations73
US5143367ASep 1, 1992
Rotary vacuum wicketter with removable split wearplates
POTTORFF EARL T5 citations62
US4877233AOct 31, 1989
Rotary vacuum wicketter
POTTORFF EARL T3 citations62
PEARL TECHNOLOGIES INC
6 patentsUS6196827B1Mar 6, 2001
Swing arm stabilizing cage
PEARL TECHNOLOGIES INC23 citations92
US6148710ANov 21, 2000
Slitter-punch with quick adapter
PEARL TECHNOLOGIES INC22 citations92
US5700489ADec 23, 1997
Bubble stabilizer and sizing cage with wear strips
PEARL TECHNOLOGIES INC19 citations92
US6113026ASep 5, 2000
Bow spreader bar
PEARL TECHNOLOGIES INC11 citations73
US5585120ADec 17, 1996
Extriuded metal collapsing boards with replaceable wear plates
PEARL TECHNOLOGIES INC4 citations62
US7779738B2Aug 24, 2010
Pivot punch
PEARL TECHNOLOGIES INC1 citations47