Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7213649 | Geothermal pipe weight A method and apparatus for adding rigidity and weight to the piping used in geothermal wells for ground-source heat pumps enhances insertion of the piping into the wells. The weight used must be approved by appropriate organizations such as the DNR, NSF, and/or EPA,... | 05/08/2007 |
| 7191840 | Casing running and drilling system A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spe... | 03/20/2007 |
| 6920924 | Wellbore apparatus A unitary pipe loop component for use with a sinker bar and a pair of pipes in a wellbore includes a return bend pipe fitting having a fluid flow passage configured to extend between the pipes in the wellbore, and further includes a sleeve having a passage with open... | 07/26/2005 |
| 6102119 | Method for installing tubular members axially into an over-pressured region of the earth A method is disclosed for installing a tubular member, having an upper end and a closed lower end, axially into and through an over-pressured region of the earth by using a mandrel to drive the tubular member from near the bottom, which results in a signi... | 08/15/2000 |
| 5351533 | Coiled tubing system used for the evaluation of stimulation candidate wells The present invention is an improved apparatus and method for measuring downhole flowing and shut-in pressures to determine the condition of the reservoir and the potential of the well as a stimulation candidate. The tool string of the present invention i... | 10/04/1994 |
| 4665980 | Method for improving well production by sonically driving granular medium installed in well A granular medium such as gravel is emplaced in the bottom of a well. A well liner is attached to the end of a drill pipe and lowered to the bed of gravel. The drill pipe is then driven at a sonic frequency which may be a resonant frequency of vibration o... | 05/19/1987 |
| 4295526 | Method and apparatus for connecting steel pipe sections The method comprises providing an extremely strong and elastic alloy steel ring having a inner diameter substantially smaller than the outer diameter of the pipe to be joined, and an outer diameter much larger than such outer diameter of the pipe. Great a... | 10/20/1981 |
