Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6488116 | Acoustic receiver An acoustic receiver for sensing acoustic waves and generating orthogonal triaxial acoustic response data representative of said acoustic waves is disclosed. The receiver has at least four acoustic sensors oriented in at least four different directions. E... | 12/03/2002 |
| 6354765 | Method of transporting and disposing of an offshore platform jacket A method for disposing of an offshore platform jacket comprises suspending the jacket in one piece under a tow vessel, towing it to the disposal site and safely and quickly releasing the jacket at the disposal site. Once the jacket foundation piles have b... | 03/12/2002 |
| 6328107 | Method for installing a well casing into a subsea well being drilled with a dual density drilling system A method for controlling the pressure at the base of a gas-lifted riser during casing installation is disclosed. Prior to casing installation, drilling fluid is displaced from the riser and the riser is filled with seawater. During casing installation, th... | 12/11/2001 |
| 6318471 | Method for installing tubular members axially into 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... | 11/20/2001 |
| 6299384 | Earthquake-compliant jacket An earthquake-compliant offshore platform for use in regions of strong earthquakes is disclosed in which the natural vibrational period of the jacket structure is preferably in the range of about 4 seconds to about 8 seconds, which is between the primary ... | 10/09/2001 |
| 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 |
| 5485882 | Low-density ball sealer for use as a diverting agent in hostile environment wells The invention is a rigid, hollow core, low-density ball sealer designed to perform effectively in hostile well environments. It temporarily seals perforations inside cased wells at temperatures up to 400° F. (204° C.), at hydrostatic pressures up to 20,... | 01/23/1996 |
| 5472620 | Solid-liquid separation process using at least one polymer and cavitation energy A process for separating solids from a fluid using at least one polymer and acoustic energy at or above cavitation is disclosed. The fluid containing the polymer is flowed into a vessel and acoustic energy is applied to the fluid at intensity sufficient t... | 12/05/1995 |
| 5411301 | Tubing connection with eight rounded threads A non-upset tubing section, a tubular coupling, a connection for non-upset tubing sections, and a method for connecting the non-upset tubing section and the tubular coupling are disclosed. Methods for fabricating the non-upset tubing section and the tubul... | 05/02/1995 |
| 5258600 | Process for welding thermally and/or mechanically treated metal conduits A process for welding mechanically and/or thermally treated alloy pipes to achieve the full tensile capacity of the unwelded base alloy across the welded pipe joint is disclosed. The process comprises welding the pipes together at the beveled pipe ends to... | 11/02/1993 |
| 5249844 | Borehole mining process for recovery for petroleum from unconsolidated heavy oil formations A borehole mining process for recovery of petroleum from unconsolidated heavy oil formations. The process consists of drilling a borehole in the unconsolidated heavy oil reservoir, which is formed from sand particles aggregated by heavy oil, and positioni... | 10/05/1993 |
