Inventor
SHEAFFER JOHN E
27 patents
⚠️ This page may combine multiple inventors who share the name “SHEAFFER JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRODUCTS LAB INC
25 patentsUS5924384AJul 20, 1999
Animal cage assembly and combination water bottle holder and feeder
PRODUCTS LAB INC98 citations98
US6341581B1Jan 29, 2002
Multispecies rodent cage
PRODUCTS LAB INC55 citations96
US6336427B1Jan 8, 2002
Feeder assembly for use in a cage
PRODUCTS LAB INC30 citations96
US6295950B1Oct 2, 2001
Filter cap for an animal cage
PRODUCTS LAB INC62 citations96
US6227146B1May 8, 2001
Filter top for rodent cage
PRODUCTS LAB INC67 citations96
US6041741AMar 28, 2000
Multispecies rodent cage
PRODUCTS LAB INC34 citations96
US4989545AFeb 5, 1991
Ventilated cage and open rack system
PRODUCTS LAB INC56 citations96
US6158387ADec 12, 2000
Ventilated cage and rack system
PRODUCTS LAB INC65 citations94
US5954013ASep 21, 1999
Ventilated cage and rack system
PRODUCTS LAB INC76 citations94
US5694885ADec 9, 1997
Animal feeder with perch assembly
PRODUCTS LAB INC52 citations92
US5042429AAug 27, 1991
Ventilated cage and rack system
PRODUCTS LAB INC46 citations92
US6029698AFeb 29, 2000
Air regulator valve for ventilated cage and rack system
PRODUCTS LAB INC22 citations90
US5165362ANov 24, 1992
Ventilated cage and open rack system
PRODUCTS LAB INC44 citations90
US5097750AMar 24, 1992
Waste management disposal system
PRODUCTS LAB INC34 citations90
US5950567ASep 14, 1999
Multiple dosage feeder for animal cage
PRODUCTS LAB INC17 citations78
USD420772SFeb 15, 2000
Water bottle
PRODUCTS LAB INC11 citations74
USD397526SAug 25, 1998
Feeder for an animal cage
PRODUCTS LAB INC10 citations74
US5311836AMay 17, 1994
Ventilated cage and open rack system
PRODUCTS LAB INC15 citations74
US6526915B1Mar 4, 2003
Feeder assembly for use in a cage
PRODUCTS LAB INC4 citations73
US6336425B1Jan 8, 2002
Multispecies rodent cage
PRODUCTS LAB INC7 citations73
US5735233AApr 7, 1998
Animal cage rack locking mechanism
PRODUCTS LAB INC9 citations71
USD379683SJun 3, 1997
Wire bar lid for an animal cage
PRODUCTS LAB INC4 citations63
US5048460ASep 17, 1991
Modular animal kennel
PRODUCTS LAB INC4 citations63
US7451723B1Nov 18, 2008
Multipurpose rat cage
PRODUCTS LAB INC5 citations61
USD476452SJun 24, 2003
Animal cage water bottle
PRODUCTS LAB INC2 citations60