Inventor

STEPHEN ANTHONY KUJAK

Inventor

Overview

4→

Patents

2021–2024

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 4 as inventor

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

F25Bprimary

F25BRefrigeration machines, plants or systems23%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact15%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application15%

B01DSeparation8%

B23PMetal-working not otherwise provided for8%

C09KMaterials for miscellaneous applications, not provided for elsewhere8%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids8%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

12,092,378Refrigerant management in HVAC systems2024 11,976,234Refrigerant additives and compositions2024 11,635,239Refrigeration system with purge and acid filter2023 11,137,183Phobic/philic structures in refrigeration systems and liquid vapor separation in refrigeration systems2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2024Patents assigned to TRANE INT INC (4)· patent assignee history

2021–2024Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TRANE INT INC	4	2021–2024

Locations

Location	Patents	Span
US	4	2021–2024