Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of manufacturing a disposable contraceptive intravaginal cervical barrier

Method of manufacturing a disposable contraceptive intravaginal cervical barrier

US Patent 4311543 · Granted Jan 19, 1982

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Disposable contraceptive cervical barrier1986
Disposable contraceptive cervical barrier1986
Polyurethane foam cleaning pads and a process for their manufacture1983
Polyurethane foam cleaning pads and a process for their manufacture1983
Skateboard1982
Polyurethane sponges manufactured with additive dispersed therein1982
Polyurethane sponges manufactured with additive dispersed therein1982
Polyurethane sponges manufactured with additive dispersed therein1981
Polyurethane sponges manufactured with additive dispersed therein1981
Vaginal syringe1980
Vaginal syringe1980
Disposable contraceptive cervical barrier1980