Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Photo film take-up spool and shaft

Photo film take-up spool and shaft

US Patent 5838998 · Granted Nov 17, 1998

Estimated economic value: $160,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Heat sealing device2025
Imaging element and distance measurement module2025
Heater, manufacturing apparatus for manufacturing glass article, and manufacturi2025
Light receiving device and distance measuring module2025
Current assisted photonic demodulator (CAPD) indirect time of flight (ToF) light2024
Light-receiving element, solid-state imaging device, and ranging device2024
Image sensor, imaging device, and ranging device2024
Light receiving device and distance measuring module2024
Near-infrared cut-off filter and imaging device including the same2023
Light treatment system and balloon catheter2023
Portable electric cutout tool2023
Frame with elevator indicator2023