# US 9,517,429 B2 · Filtration monitoring system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,429 B2 - Document ID: US9517429B2 - Status: Granted - Kind: B2 - Application number: 14/079,428 - Filed: 2013-11-13 - Published: 2015-02-26 - Granted: 2016-12-13 - Earliest claimed: 2012-11-13 - Assignees: Complete Filter Management LLC - Applicants: Michael B. Beier - Inventors: Michael B. Beier - Web page: https://patentgrep.com/patent/US9517429B2 ## CPC - B01D 46/429: {Means for wireless communication} - B01D 46/0086: {Filter condition indicators} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract The present disclosure is a filtration monitoring system. Filtration monitoring system may include a sensor configured to measure a characteristic of usage of a monitored filter. The sensor may be communicatively coupled to a controller which is configured to transfer measured data to a server of the filter monitoring system. Server may be configured to store historical data regarding representative filter usage and may determine a predicted expiration time for a monitored filter which may be adjusted based upon the measured data from the sensor. ## Claims ### Claim 1 A filtration monitoring system, comprising: a sensor configured to measure a characteristic of usage of a monitored filter; a second sensor configured to measure a characteristic of usage of a second monitored filter: a controller communicatively coupled to the sensor, said controller configured to receive measured data of said characteristic of usage of said monitored filter from said sensor; a second controller communicatively coupled to the second sensor: a server communicatively coupled to said controller and said second controller, wherein said server is configured to retrieve historical data regarding usage of a representative filter to determine a predicted expiration time of said monitored filter, said server configured to adjust said predicted expiration time of said monitored filter based upon the measured data received from said controller, wherein said server is configured to retrieve historical data regarding usage of another representative filter to determine a predicted expiration time of said second monitored filter, said server configured to adjust said predicted expiration time of said second monitored filter based upon the measured data received from said second controller, wherein said predicted expiration time accounts for estimated periods of use of said second monitored filter and accounts for estimated periods of non-use of said second monitored filter wherein said controller includes a wireless transceiver. ### Claim 2 (depends on 1) The filtration monitoring system of claim 1, wherein said sensor includes a differential pressure sensor. ### Claim 3 (depends on 2) The filtration monitoring system of claim 2, wherein said differential pressure sensor is configured to measure a differential pressure across said filter. ### Claim 4 (depends on 1) The filtration monitoring system of claim 1, wherein said wireless transceiver is configured to transmit data according to IEEE 802.11 standard. ### Claim 5 (depends on 1) The filtration monitoring system of claim 1, wherein said representative filter shares at least one characteristic in common with said monitored filter. ### Claim 6 (depends on 5) The filtration monitoring system of claim 5, wherein said at least one characteristic in common with said monitored filter includes one of filter type, filter size, filter manufacturer, or filter environment. ### Claim 7 (depends on 1) The filtration monitoring system of claim 1, wherein said server is configured to send a notification to a user regarding the predicted expiration time of said monitored filter. ### Claim 8 (depends on 7) The filtration monitoring system of claim 7, wherein said server is configured to determine a service technician route for replacement of filters based upon the predicted expiration time of said monitored filter, the predicted expiration time of said second monitored filter, a location of said monitored filter, and a location of said second monitored filter. ### Claim 9 (depends on 8) The filtration monitoring system of claim 8, wherein said server is configured to schedule a replacement of said monitored filter at a time approximately near the predicted expiration of said monitored filter. ### Claim 10 (depends on 1) The filtration monitoring system of claim 1, wherein said server is configured to generate a graphical user interface accessible by a user via a worldwide network, said graphical user interface including information regarding the predicted expiration time of said monitored filter. ### Claim 11 (depends on 1) The filtration monitoring system of claim 1, wherein said monitored filter is an air filter. ### Claim 12 A filtration monitoring system, comprising: a differential pressure sensor configured to measure a differential pressure across a monitored air filter; a wireless transceiver communicatively coupled to the differential pressure sensor, said wireless transceiver configured to receive measured differential pressure data across said monitored air filter from said differential pressure sensor; a server communicatively coupled to said wireless transceiver, wherein said server is configured to retrieve historical data regarding usage of a representative filter to determine a predicted expiration time of said monitored air filter, said server configured to adjust said predicted expiration time of said monitored air filter based upon the measured differential pressure data received from said wireless transceiver, said server configured to retrieve the historical date regarding usage of the representative filter in combination with the measured differential pressure data to determine the predicted expiration time of the monitored air filter, said predicted expiration time accounts for estimated periods of use of said monitored air filter and accounts for estimated periods of non-use of said monitored air filter. ### Claim 13 (depends on 12) The filtration monitoring system of claim 12, wherein said representative filter is a similar filter type and a similar filter size. ### Claim 14 (depends on 12) The filtration monitoring system of claim 12, wherein said server is configured to send a notification to a user regarding the predicted expiration time of said monitored air filter.