Inventor

SHUN-CHEN CHANG

Inventor

Overview

17→

Patents

2021–2026

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 17 as inventor

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

F04Dprimary

F04DNon-positive-displacement pumps52%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants14%

H02KDynamo-electric machines10%

G06FElectric digital data processing7%

H05KPrinted circuits7%

LOC237%

F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g3%

PatentTitleYear

12,553,448Impeller wheel2026 12,385,493Fan2025 D1085395Fan2025 D1073040Fan2025 12,146,502Impeller and fan employing same2024 12,025,143Mixed flow fan with enhanced heat dissipation efficiency2024 12,006,950Combination structure of fan guard and static blades2024 12,006,942Serial-type diagonal fan assembly2024 11,867,188Fan2024 11,746,798Centrifugal fan2023 11,649,832Fan impeller2023 11,578,731Asymmetrical double-outlet blower2023 11,365,748Fan impeller2022 11,236,760Impeller and fan2022 11,199,197Centrifugal fan2021 11,162,498Fan2021 11,136,987Series-connected fan2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2026Patents assigned to DELTA ELECTRONICS INC (17)· patent assignee history

2021–2026Based in TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DELTA ELECTRONICS INC	17	2021–2026

Locations

Location	Patents	Span
TW	17	2021–2026