David M Lyons

US Patent:

20130339339, Dec 19, 2013

Filed:

Jun 15, 2012

Appl. No.:

13/525160

Inventors:

Bin Qin - Phoenix AZ, US
Michael Davis - Scottsdale AZ, US
David Lyons - Tempe AZ, US

International Classification:

G06F 17/30

US Classification:

707713, 707E17017

Abstract:

Accelerated sub-string searches on large data sets can be performed using filtering processes that can improve or optimize run time performance. A first filtering process can include partitioning a binary tree into sections to enable an exact search to replace a substring search for part of the binary tree and for part of the binary tree to be potentially excluded from substring searching. A second filtering process can include comparing count representations of entries in the binary tree and of a received input string to potentially further exclude entries from substring searching.

US Patent:

20170050127, Feb 23, 2017

Filed:

Aug 19, 2016

Appl. No.:

15/241967

Inventors:

- Oakland CA, US
Andrea Diaz - Melrose Park IL, US
Jonathan McDonald - Danville CA, US
David Lyons - Pleasanton CA, US

International Classification:

B01D 29/56
C02F 1/28
B01D 35/30
C02F 1/66
C02F 1/42

Abstract:

In one example, a filter cartridge includes a housing having a fluid entry port and a fluid exit port, and the housing has a chamber in fluid communication with the fluid entry port and the fluid exit port. A first medium is disposed within the chamber and includes a material that serves to change the pH of a fluid passing through the first medium. A filtration medium is disposed in the chamber downstream of the first medium and arranged to receive effluent of the first medium. The filtration medium includes a material configured to remove a metal from a fluid passing through the filtration medium.