Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Shaft kiln

Shaft kiln

US Patent 4352661 · Granted Oct 5, 1982

Estimated economic value: $3,545,000 ⓘ

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Pipette tip and uses and methods thereof2025
Pipette tip and uses and methods thereof2023
Whole blood separation sampling apparatus2021
Biological sample collection and preservation2017
Biological fluid sampling and storage apparatus for remote use2015
Razor and blade2001
Capillary fill test device with improved fluid delivery1999
Razor and blade1998
Capillary flow device and method for measuring activated partial thromboplastin 1991
Coking tar impregnated refractory products1991
Whole blood control sample1988
High density low porosity refractory product and process for making the same1980