Michael Nelson PEREIRA CALDEIRA

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Toronto, CA

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Patents Grantslast 30 patents

Information Patent Grant
Residential grey water recycling system
- Patent number 12,146,302
- Issue date Nov 19, 2024
- GREYTER WATER SYSTEMS INC.
- Christopher Roy Thompson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Intake filter for water collection system with pressure activated b...
- Patent number 11,879,236
- Issue date Jan 23, 2024
- GREYTER WATER SYSTEMS INC.
- Christopher Roy Thompson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Intake filter for water collection system with pressure activated b...
- Patent number 10,934,691
- Issue date Mar 2, 2021
- GREYTER WATER SYSTEMS INC.
- Christopher Roy Thompson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
RESIDENTIAL GREY WATER RECYCLING SYSTEM
- Publication number 20220145596
- Publication date May 12, 2022
- Greyter Water Systems, Inc.
- Christopher Roy THOMPSON
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
INTAKE FILTER FOR WATER COLLECTION SYSTEM WITH PRESSURE ACTIVATED B...
- Publication number 20210148095
- Publication date May 20, 2021
- Greyter Water Systems Inc.
- Christopher Roy THOMPSON
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RESIDENTIAL GREY WATER RECYCLING SYSTEM
- Publication number 20190047878
- Publication date Feb 14, 2019
- Greyter Water Systems Inc.
- Christopher Roy THOMPSON
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
INTAKE FILTER FOR WATER COLLECTION SYSTEM WITH PRESSURE ACTIVATED B...
- Publication number 20190048563
- Publication date Feb 14, 2019
- Greyter Water Systems Inc.
- Christopher Roy THOMPSON
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE