"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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 |
| 5731112 | Processless diacetylenic salt films capable of developing a black image This invention relates to a mixture of imageable polyacetylenic compounds which have similar photosensitivities and which are visually imageable in complementary colors combinable to provide a black image, which mixture contains at least one polyacetyleni... | 03/24/1998 |
| 5385948 | Alkoxyalkyl lactams as solvents for macro and microemulsions A solvent for producing emulsifiable concentrates from agriculturally active chemicals which are insoluble in water comprises an alkoxyalkyl lactam such as butoxy propyl pyrrolidone. An agriculturally active chemical and the alkoxyalkyl lactam are admixed... | 01/31/1995 |
| 5354726 | Delivery system for agricultural chemicals An emulsifiable concentrate of agriculturally active chemical which, upon dilution, produces a highly stable emulsion and avoids precipitation of the active ingredient on extended storage. The inventive concentrate is composed of an agriculturally active ... | 10/11/1994 |
| 5294644 | Surface active lactams The invention relates to properties and uses of N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having the formula ##STR1## wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8... | 03/15/1994 |
| 5283229 | Delivery system for agricultural chemicals An emulsifiable concentrate of agriculturally active chemical which, upon dilution, produces a highly stable emulsion and avoids precipitation of the active ingredient on extended storage. The inventive concentrate is composed of an agriculturally active ... | 02/01/1994 |
| 5280092 | Lactam-containing emulsifier systems for water-in-oil emulsion polymers An emulsifier for an inverse emulsion polymerization to be produce a water-soluble polymer composed of a mixture of a non-ionic oil-soluble surfactant and an N-alkyl lactam or polymer of a N-vinyl lactam. The emulsifier is extremely useful in polymerizati... | 01/18/1994 |
| 5250499 | Delivery system for agricultural chemicals An emulsifiable concentrate comprising an agriculturally active chemical, a surfactant, an organic diluent and a solvent having first and second components, the first component being capable of solubilizing the agriculturally active chemical and the secon... | 10/05/1993 |
| 5227509 | Process for manufacture of organic esters of strong acids A method for preparing (R)Xm-p Ap by reacting (R)Xm and MA in N-methylpyrrolidone and recovering the by-product MX as a precipitate wherein: X is halide; R contains from 1 to 8 carbon atoms, can be substituted or unsubstituted,... | 07/13/1993 |
| 5221791 | Water-soluble biologically active ammonium salts This invention relates to hydrolysis resistant, water-soluble ammonium salt solids which are biologically active and which are described by the formula ##STR1## wherein m has a value of from 1 to 3; n has a value of from 1 to 4 and is equal to t... | 06/22/1993 |
| 5176736 | Delivery system for agricultural chemicals An emulsifiable concentrate comprising an agriculturally active chemical, a surfactant, an organic diluent and a solvent having first and second components, the first component being capable of solubilizing the agriculturally active chemical and the secon... | 01/05/1993 |
| 5106914 | Pressure sensitive adhesive compositions and elements made therefrom An adhesive element which exhibits excellent properties with respect to a variety of substrates, such as, skin, glass, fabric, paper, plastic, and other non-porous surfaces which is non-toxic, and non-sensitizing. The element exhibits high cohesive streng... | 04/21/1992 |
| 5084623 | Radiation dosage indicator A multi-ply radiation dosage indicator, and method of manufacture, is disclosed including a first ply having visible indicia thereon and a second ply having a radiation sensitive zone overlying the indicia of the first ply. The radiation sensitive zone is... | 01/28/1992 |
| 5035829 | Paint removing compositions Water soluble paint remover compositions for the removal of uncured paint are disclosed which avoid the use of toxic organic solvent, in particular, methylene chloride. The inventive compositions comprise an organic carboxylic acid, N-methyl-2-pyrrolidone... | 07/30/1991 |
| 5011726 | Low temperature sealing adhesive composition An adhesive composition for roofing such as shingles is disclosed which is composed of a hard asphaltic bitumen fraction having a penetration number at 77° F. of from 0 to 30 dmm and a softening point of from about 150° to 220° F. and an elastomeric co... | 04/30/1991 |
| 4923712 | Asphaltic flashing stick A device for the spot application of molten asphaltic composition to spot locations comprising a rod of solid, modified bitumen adapted for heating and end thereof. The softened or molten composition at the end can easily and conveniently be delivered to ... | 05/08/1990 |
| 4920145 | Water-soluble complexes of water-insoluble pharmaceutical compounds and preparation thereof A method for increasing the water-solubility of highly insoluble organic compounds by forming a novel complex product from the reaction between the organic compound and an oligomer of vinylpyrrolidone. The complex is highly stable and results in solubilit... | 04/24/1990 |
| 4900775 | Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone A method for increasing the water-solubility of highly insoluble organic compounds by forming a complex product from the reaction between the organic compound and an aqueous solution of solid polyvinylpyrrolidone. The solubility of the organic compound ca... | 02/13/1990 |
| 4886609 | Method for stimulation of oil and gas wells A method for the removal of scale from the interior of producing oil and gas wells is disclosed. The method comprises introducing a mixture of an aqueous mineral acid, a mutual solvent, and an alkyl or aralkyl polyoxyalkylene phosphate ester to the interi... | 12/12/1989 |
| 4877198 | Device for grounding conductive film A device for supplying a film which possesses an electrically conductive layer which can be grounded is described which is composed of a spool mountable on a rotatable grounded spindle; retaining means for securing the trailing edge of an electrically con... | 10/31/1989 |