Inventor

MATTHEW MICHAEL PETKUS

Inventor

US

Overview

2021–2025

Patent span

Performing operations

Primary field (CPC B)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B05Bprimary

B05BSpraying apparatus62%

B08BCleaning in general15%

B01DSeparation8%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

B01FMixing, e.g. dissolving, emulsifying or dispersing3%

C09DCoating compositions, e.g. paints, varnishes or lacquers3%

C11DDetergent compositions3%

PatentTitleYear

12,509,597Paint remover having reduced flammability2025 D1105670Swirl chamber2025 12,485,438Spray wand2025 D1094656Swirl chamber2025 D1089543Swirl chamber2025 D1086376Valve assembly2025 D1086377Valve assembly and swirl chamber2025 D1085350Valve housing2025 D1085349Valve housing2025 D1085351Valve assembly and swirl chamber2025 D1085348Valve housing2025 D1085347Valve housing2025 D1084572Swirl chamber2025 D1084233Valve assembly and swirl chamber2025 D1080112Swirl chamber2025 D1078936Valve assembly2025 D1078926Swirl chamber2025 D1078925Swirl chamber2025 D1077990Swirl chamber2025 12,285,734Composition containing urea for use in brine formation2025 12,263,508Spray wand2025 12,103,025Spray wand2024 11,833,552Formulation delivery system having a solid chemistry2023 11,833,553Spray wand2023 11,679,404Spray wand2023 11,541,409Apparatus and method for providing an improved spray pattern with a squeeze bottle2023 11,498,048Composition containing urea for use in brine formation2022 11,148,118Encapsulated fragrance in compressed tablet2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2025Patents assigned to WM BARR & CO INC (27)· patent assignee history

2021–2025Based in US· patent location history

2023Patents assigned to JOHNSON & SON INC S C (1)· patent assignee history

2025Patents assigned to W M BARR & COMPANY (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WM BARR & CO INC	27	2021–2025
JOHNSON & SON INC S C	1	2023
W M BARR & COMPANY	1	2025

Locations

Location	Patents	Span
US	28	2021–2025