Mathew Walker — 9 Patents at Flsmidth A/S

Mathew Walker has been granted 9 US patents while listed as an inventor at Flsmidth A/S. The first was granted in 1985 and the most recent in October 2025. Mathew Walker ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Mathew Walker in Brisbane, MN, AU.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12448247	Inspection control system for an elevator system and method for switching an elevator system between a normal mode and an inspection mode	Frank Olivier Roussel	2025-10-21
12145159	Flotation machine apparatus and method of using the same	—	2024-11-19
11668536	Systems and methods for predicting tube fouling in a fired apparatus, and for utilizing tube fouling predictions	Fei Qi	2023-06-06	$338,267,000
11185872	Method for converting a naturally-aspirated flotation cell to a forced-gas flotation cell, and apparatus thereof	—	2021-11-30
10300498	Centrifuge seals and sealing arrangements and centrifuges containing the same	Michael Gardiner, Tony Elliott	2019-05-28
D805889	Leaf spring	Tony Elliott, Michael Gardiner	2017-12-26
9751094	Distributor for a scroll screen centrifugal separator	Michael Gardiner, Tony Elliott, David Starr, Craig Wilson, Mark W. Flanagan +1 more	2017-09-05
7645472	Method for recycling liquids for treating food	Ralf Ludwig, Paul Wilson	2010-01-12
4511174	Camping and recreation trailer	—	1985-04-16

Mathew Walker — 9 Patents

Issued Patents All Time

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