...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 5579580 | Bi-directional wire-wrapped blade cartridge In order to provide a razor head for arrangement at the front end of a handle, which, with a simple construction and easy assembly suitable for mass production and low manufacturing cost, improves the results of shaving and also can be used at body locati... | 12/03/1996 |
| 5447084 | Razor head of a wet razor To improve the method for fixing protective strands to a razor head, the razor head is provided with a plastic body having an upper side that defines a surface for engaging the skin of the user, with the plastic body also having a front side and a back si... | 09/05/1995 |
| 5090124 | Razor blade unit A razor blade unit includes a support member and at least one razor blade secured to the support member with a cutting edge extending from the support member. A wire is wrapped around at least a portion of the support member and the cutting edge of the ra... | 02/25/1992 |
| 4489489 | Disposable utility blade An improved utility blade for use with the conventional type of utility knife handle and having means near its cutting points for shielding the cutting points and portions of the cutting edges of the blade from the contents of cardboard cartons.... | 12/25/1984 |