| Patent |
Priority |
Assignee |
Title |
| 1608772, |
|
|
|
| 1987502, |
|
|
|
| 2008138, |
|
|
|
| 2099479, |
|
|
|
| 2596532, |
|
|
|
| 3308727, |
|
|
|
| 349567, |
|
|
|
| 3548864, |
|
|
|
| 3658086, |
|
|
|
| 4029425, |
Jul 10 1975 |
|
Manhole extension |
| 4030519, |
Apr 23 1976 |
Bingham and Taylor |
Valve cover for buried valve, permitting access thereto |
| 4188151, |
Oct 25 1977 |
JOHN ROBSON HALL |
Manhole extension assembly |
| 4275757, |
Aug 06 1979 |
|
Manhole structure and method of making same |
| 4305679, |
Jan 19 1981 |
CRETEX COMPANIES, INC THE |
Manhole sealing device |
| 4308886, |
Nov 27 1979 |
Handley Industries, Inc. |
Curb box |
| 4350177, |
May 12 1980 |
|
Utility box support |
| 4368893, |
Sep 10 1981 |
|
Manhole infiltration disk and seal assembly |
| 4440407, |
Nov 24 1982 |
|
Manhole cover gasket seal |
| 4449715, |
Aug 19 1982 |
|
External manhole seal |
| 4469467, |
Jan 18 1982 |
CRETEX COMPANIES INC , THE |
Manhole chimney seal |
| 4475845, |
Oct 14 1982 |
The Cretex Companies, Inc. |
External manhole chimney seal |
| 4534378, |
May 16 1983 |
Adaptor, Inc. |
Gate valve adaptor |
| 4556081, |
Nov 25 1983 |
|
Butterfly valve adaptor |
| 4592674, |
Mar 23 1978 |
|
Concrete manhole |
| 4759656, |
Sep 29 1986 |
INSITUFORM MID-AMERICA, INC , A CORPORATION OF DELAWARE |
Construction of a manhole chimney |
| 4772154, |
Sep 05 1986 |
PONT-A-MOUSSON S A |
Sealing gasket for a roadway manhole |
| 4819687, |
Nov 30 1987 |
|
Valve box stabilizer |
| 4872780, |
Jul 23 1987 |
|
Manhole cover support with box flanging |
| 4927163, |
Dec 22 1988 |
|
Storm infilteration disk with filter |
| 5095667, |
Mar 07 1990 |
|
Telescopic manhole and storm drain installation |
| 514633, |
|
|
|
| 5201151, |
Oct 11 1991 |
EBW, Inc. |
Manhole rim and cover assembly |
| 5240345, |
Nov 07 1991 |
|
Manhole sealing assembly |
| 5299884, |
Sep 10 1991 |
Poly-Tec Products, Inc. |
Water lock method and apparatus |
| 5316040, |
Mar 26 1993 |
|
Valve alignment tool |
| 5362174, |
Mar 19 1992 |
|
Manhole cover |
| 536268, |
|
|
|
| 5431553, |
Sep 26 1991 |
Miller Pipeline Corporation |
Manhole seal molding apparatus |
| 5482400, |
Oct 03 1994 |
National Rubber Technology Inc. |
Segmented adjustment riser |
| 5542780, |
Jan 13 1993 |
|
Underground chamber |
| 5628152, |
Aug 16 1995 |
|
Adjustable manhole cover support with shield |
| 5722204, |
Feb 22 1995 |
Alcatel Kabel AG & Co |
Device for housing the active and passive junction assemblies of telecommunications installations |
| 589357, |
|
|
|
| 6044590, |
Oct 31 1995 |
|
Liquid infiltration prevention structures for preventing liquid infiltration manhole assemblies |
| 604622, |
|
|
|
| 6092550, |
Feb 03 1997 |
Swagelok Company |
Diaphragm valve seat arrangement |
| 6354325, |
Oct 23 2000 |
3 Dimensional Contracting, Inc. |
Underground access conduit |
| 6953053, |
Dec 10 2002 |
Parker Intangibles LLC |
Pressure relief valve assembly |
| 820616, |
|
|
|
| 852359, |
|
|
|
| 996956, |
|
|
|
| 20060131534, |
|
|
|
| D300171, |
Sep 18 1985 |
NEV/AL, Inc. |
Valve housing |
| D437917, |
Sep 02 1999 |
Bermad |
Control flow valve |
| D460526, |
Mar 21 2001 |
Bermad Limited Partnership |
Control valve |
| D489797, |
Feb 11 2003 |
United Brass Works, Inc. |
Valve |
| D546924, |
Sep 01 2005 |
ADAPTOR, INC |
Gate valve sealing structure |
| D548309, |
Sep 01 2005 |
ADAPTOR, INC |
Gate valve sealing structure |
| D554744, |
Aug 15 2006 |
Chang Peng Metal Industrial Co., Ltd |
Faucet spout |
| GB2102479, |
|
|
|
| RE29532, |
Feb 08 1977 |
|
Vault |