Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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 |
| 4087943 | Method of abrading or having a restricted passage surface A flowable abrasive composition comprising a polyboronorgano silicon compound and dispersed abrasive granules, said composition being modified with a gel formed from a metallic soap (8-22 carbon atoms) and a hydrocarbon oil. The composition is especially ... | 05/09/1978 |
| 4082549 | Agglomeration imaging process An imaging member comprising an agglomerable layer on and not embedded in a substrate is agglomerated in image configuration to cause relative transparentizing or a color change and the formation of larger agglomerates in the agglomerated areas. This imag... | 04/04/1978 |
| 4071385 | Ultrasonic inlaid article The forming of an inlaid article by carving the object to be inlaid into the article with ultrasonic energy to form a recess having the same peripheral configuration as the object, and then positioning the object within the ultrasonically carved recess in... | 01/31/1978 |
| 4064660 | Process for preparing haze free semiconductor surfaces and surfaces so made Process for producing haze free semiconductor surfaces, especially surfaces of (111)-oriented gallium arsenide, by polishing, which comprises subjecting the surfaces to the polishing action of a mixture of (a) an aqueous suspension containing one or sever... | 12/27/1977 |
| 4062658 | Composition and method for repairing selenium photoreceptors Disclosed are compositions and a method for repairing a damaged electrostatographic photoreceptor comprised of a conductive substrate with a uniform layer of selenium or a selenium alloy on its surface. The instant compositions contain amorphous silica of... | 12/13/1977 |
| 4057939 | Silicon wafer polishing The polishing of monocrystalline silicon wafers with an aqueous composition of fine sized abrasive particles, a soluble alkali metal base such a sodium carbonate and an oxidizing agent such as sodium or potassium salt of dichloroisocyanuric acid (e.g., sa... | 11/15/1977 |
| 4048763 | Method for surface-, plane-parallel-, and plain lapping A method for surface-, plane-parallel-, and external plain lapping of starting work pieces with a lapping abrasive which is fed on a circularly shaped lapping abrasive track in determined quantity to the starting work pieces, and by which the starting wor... | 09/20/1977 |
| 4011099 | Preparation of damage-free surface on alpha-alumina A chemical polishing process for alpha-alumina utilizing a silica colloid polishing fluid which is both a reactant and a medium for the removal of the reaction product is disclosed.... | 03/08/1977 |
| 4005549 | Abrasive flow machining method and tooling Method and Tooling for removing material from holes or orifices (round or other shapes) or the like in a workpiece, the method and tooling providing means for directing at least a first portion of an abrasive flow composition under pressure from a main bo... | 02/01/1977 |
| 3959934 | Composition and method for repairing selenium photoreceptors Disclosed is a composition and method for repairing a damaged electrostatographic photoreceptor comprised of a conductive substrate with a uniform layer of selenium or a selenium alloy on its surface. Scratches in the selenium layer of a depth less than i... | 06/01/1976 |