Philip D. Sprung Sr.

Person

Calgary, Alberta, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Door system for movable structures
- Patent number 9,777,505
- Issue date Oct 3, 2017
- SPRUNG INSTANT STRUCTURES LTD.
- Philip D. Sprung
- E04 - BUILDING
Information Patent Grant
Stressed membrane structure
- Patent number 7,849,639
- Issue date Dec 14, 2010
- Sprung Instant Structures Ltd.
- Philip Davis Sprung
- E04 - BUILDING
Information Patent Grant
Hydraulically-operated scissor opening for stressed membrane structure
- Patent number 5,283,993
- Issue date Feb 8, 1994
- Philip D. Sprung
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Method and structure for environmental control of plant growth
- Patent number 5,001,859
- Issue date Mar 26, 1991
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method and structure for improved natural lighting for plant growth
- Patent number 4,996,791
- Issue date Mar 5, 1991
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Seedling propagation assembly
- Patent number 4,982,527
- Issue date Jan 8, 1991
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method and system for purification of water for greenhouse structures
- Patent number 4,956,936
- Issue date Sep 18, 1990
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
System for supporting growing plants
- Patent number 4,833,825
- Issue date May 30, 1989
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Heater system for greenhouses
- Patent number 4,830,276
- Issue date May 16, 1989
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Greenhouse structure
- Patent number 4,800,674
- Issue date Jan 31, 1989
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Cooling system for greenhouse structures
- Patent number 4,788,791
- Issue date Dec 6, 1988
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Aeration assembly for a nutrient feed solution for a nutrient film...
- Patent number 4,770,347
- Issue date Sep 13, 1988
- Philip D. Sprung
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
DOOR SYSTEM FOR MOVABLE STRUCTURES
- Publication number 20170107738
- Publication date Apr 20, 2017
- SPRUNG INSTANT STRUCTURES LTD.
- Philip D. Sprung
- E04 - BUILDING
Information Patent Application
Stressed membrane structure
- Publication number 20060101730
- Publication date May 18, 2006
- Sprung Instant Structures Ltd.
- Philip Davis Sprung
- E04 - BUILDING

Philip D. Sprung Sr.

Person

Patents Grantslast 30 patents

Door system for movable structures

Stressed membrane structure

Hydraulically-operated scissor opening for stressed membrane structure

Method and structure for environmental control of plant growth

Method and structure for improved natural lighting for plant growth

Seedling propagation assembly

Method and system for purification of water for greenhouse structures

System for supporting growing plants

Heater system for greenhouses

Greenhouse structure

Cooling system for greenhouse structures

Aeration assembly for a nutrient feed solution for a nutrient film...

Patents Applicationslast 30 patents

DOOR SYSTEM FOR MOVABLE STRUCTURES

Stressed membrane structure