Inventor
GUINN TIMMY D
US15 patents
⚠️ This page may combine multiple inventors who share the name “GUINN TIMMY D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALLEN ENG CORP
12 patentsUS6089787AJul 18, 2000
Transformable two-person floating screed with automatic grade control
ALLEN ENG CORP102 citations97
US6582153B1Jun 24, 2003
Edge guarded power riding trowel
ALLEN ENG CORP20 citations92
US6089786AJul 18, 2000
Dual rotor riding trowel with proportional electro-hydraulic steering
ALLEN ENG CORP32 citations92
US6019545AFeb 1, 2000
Surface finishing machine with rotatable guard
ALLEN ENG CORP43 citations92
US5967696AOct 19, 1999
Riding trowel with variable ratio transmission
ALLEN ENG CORP25 citations92
US6106193AAug 22, 2000
Hydraulically driven, multiple rotor riding trowel
ALLEN ENG CORP43 citations91
US6048130AApr 11, 2000
Hydraulically driven, multiple rotor riding trowel
ALLEN ENG CORP22 citations91
USD466909SDec 10, 2002
Riding trowel having edge guards with safety covers
ALLEN ENG CORP15 citations84
USD474203SMay 6, 2003
Riding trowel with rotatable ring edge guard
ALLEN ENG CORP9 citations73
USD416564SNov 16, 1999
Rotatable guard for a finishing machine
ALLEN ENG CORP15 citations73
US7690864B2Apr 6, 2010
Hydraulic riding trowel with automatic load sensing system
ALLEN ENG CORP7 citations67
US8360680B2Jan 29, 2013
Hydraulic riding trowels with automatic load sensing
ALLEN ENG CORP4 citations54
ALLEN ENG CORPORATION
3 patentsUS11619010B2Apr 4, 2023
Roller tube concrete paver with retractable vibrator assembly
ALLEN ENG CORPORATION1 citations62
US12378733B1Aug 5, 2025
Bridge deck paver with enhanced hydraulic shifting
ALLEN ENG CORPORATION0 citations50
US11326359B2May 10, 2022
Concrete surface polishing trowel and conversion adaptor
ALLEN ENG CORPORATION1 citations49