P

Inventor

HARPER MICHAEL D

US14 patents
⚠️ This page may combine multiple inventors who share the name “HARPER MICHAEL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOSKOCIL MFG

6 patents
US5964189AOct 12, 1999

Multi-level pet house

DOSKOCIL MFG96 citations97
US6477981B1Nov 12, 2002

Pet feeder including a safety restriction device

DOSKOCIL MFG43 citations92
USD1010239SJan 2, 2024

Feeder

DOSKOCIL MFG2 citations72
USD1109442SJan 13, 2026

Feeder

DOSKOCIL MFG0 citations62
USD1103506SNov 25, 2025

Feeder

DOSKOCIL MFG0 citations62
US11497192B2Nov 15, 2022

Feeder

DOSKOCIL MFG1 citations62

HARPER MICHAEL D

2 patents
USD556982SDec 11, 2007

Shoe sole

HARPER MICHAEL D48 citations94
US8186304B2May 29, 2012

Automatic liquid dispensing device for animals

HARPER MICHAEL D17 citations82

NORTHROP MELANEY

2 patents
US8448603B2May 28, 2013

Animal bowl with spill-resistant rim

NORTHROP MELANEY19 citations92
US9974279B2May 22, 2018

Pet watering and feeding device

NORTHROP MELANEY4 citations71

CALSONIC INT INC

1 patent
US5132602AJul 21, 1992

Actuator positioning apparatus

CALSONIC INT INC47 citations88

Sanotech 360 Llc

1 patent
USD975242SJan 10, 2023

Electrostatic sprayer

Sanotech 360 Llc10 citations80

UNITED TECHNOLOGIES ELECTRO SY

1 patent
US4895048AJan 23, 1990

Powered actuator with manual override feature

UNITED TECHNOLOGIES ELECTRO SY22 citations75

GOODY PROD INC

1 patent
US6704971B2Mar 16, 2004

Product stocking method and device

GOODY PROD INC9 citations62