04943185 is referenced by 83 patents and cites 12 patents.

A combination drainage and waterproofing system for subterranean walls includes panels which have drain passages on the side thereof adjacent the soil. The front surface of each panel screens against soil entering the passages and the opposite surface of each panel is waterproof and is disposed in waterproof engagement with the waterproof surfaces of adjacent panels. A variety of panel constructions are disclosed. Several modes for providing the screening surfaces and the waterproof surfaces are also disclosed.

Title
Combined drainage and waterproofing panel system for subterranean walls
Application Number
7/318910
Publication Number
4943185
Application Date
March 3, 1989
Publication Date
July 24, 1990
Inventor
H James Heidt
2284 Waltonia Dr., #3, Montrose, 91020
CA, US
Raymond A Foltz
27137 Rio Bosque Dr., Valencia, 91355
CA, US
Dean L Bradfield
5104 Caroli La., La Canada, 91011
CA, US
James P McGuckin
6032 E. Calle de Rosa, Scottsdale, 85251
AZ, US
Agent
M David Shapiro
IPC
E02D 31/02
E02D 19/00
E02B 11/00
View Original Source