2772322
2823421
3208100
3214503
3256216
3256374
3351495
3426754
3536796
3555129
More ...
3558764
3567666
3634184
3675391
3679538
3679540
3696061
3725520
3745057
3784490
3797494
3798294
3799828
3801692
3839516
3843761
3844865
3862030
3865674
3870593
3903234
3917772
3920785
Novel drug delivery device
Patent #: 3948254
Issued on: 04/06/1976
Inventor: Zaffaroni
Process for producing porous products
Patent #: 3953566
Issued on: 04/27/1976
Inventor: Gore
Method of making porous objects of ultra high molecular weight polyethylene
Patent #: 3954927
Issued on: 05/04/1976
Inventor: Duling , et al.
Ultrafine porous polymer articles
Patent #: 3956020
Issued on: 05/11/1976
Inventor: Weininger , et al.
Very highly stretched polytetrafluoroethylene and process therefor
Patent #: 3962153
Issued on: 06/08/1976
Inventor: Gore
Resin sheet having porous layered structure useful as electrode separator for electric cells
Patent #: 3967978
Issued on: 07/06/1976
Inventor: Honda , et al.
Reverse osmosis apparatus
Patent #: 3993566
Issued on: 11/23/1976
Inventor: Goldberg , et al.
Medical bandage
Patent #: 3996934
Issued on: 12/14/1976
Inventor: Zaffaroni
Battery separator
Patent #: 4024323
Issued on: 05/17/1977
Inventor: Versteegh
Bandage for transdermally administering scopolamine to prevent nausea
Patent #: 4031894
Issued on: 06/28/1977
Inventor: Urquhart , et al.
Immobilized proteins
Patent #: 4102746
Issued on: 07/25/1978
Inventor: Goldberg
Process for stretching incremental portions of an orientable thermoplastic substrate and product thereof
Patent #: 4116892
Issued on: 09/26/1978
Inventor: Schwarz
Process for preparing a microporous polymer film
Patent #: 4138459
Issued on: 02/06/1979
Inventor: Brazinsky , et al.
Process for pattern drawing of webs
Patent #: 4153664
Issued on: 05/08/1979
Inventor: Sabee
Method of immobilizing proteinaceous substances
Patent #: 4169014
Issued on: 09/25/1979
Inventor: Goldberg
Porous products and process therefor
Patent #: 4187390
Issued on: 02/05/1980
Inventor: Gore
Alkaline battery separator
Patent #: 4190707
Issued on: 02/26/1980
Inventor: Doi , et al.
Process for producing multicellular articles from a blend of a crystalline polyolefin and a metal resinate
Patent #: 4191719
Issued on: 03/04/1980
Inventor: Jack , et al.
Waterproof laminate
Patent #: 4194041
Issued on: 03/18/1980
Inventor: Gore , et al.
Microporous film battery separator
Patent #: 4210709
Issued on: 07/01/1980
Inventor: Doi , et al.
Process of manufacturing a microporous sheet material
Patent #: 4237083
Issued on: 12/02/1980
Inventor: Young , et al.
Methods for making microporous products
Patent #: 4247498
Issued on: 01/27/1981
Inventor: Castro
Solvent stretch process for preparing microporous films from precursor films of controlled crystalline structure
Patent #: 4255376
Issued on: 03/10/1981
Inventor: Soehngen
Solvent stretch process for preparing a microporous film
Patent #: 4257997
Issued on: 03/24/1981
Inventor: Soehngen , et al.
Method for manufacturing a microporous film having low electrical resistance and high durability
Patent #: 4331622
Issued on: 05/25/1982
Inventor: Doi , et al.
Microporous film, particularly battery separator, and method of making
Patent #: 4335193
Issued on: 06/15/1982
Inventor: Doi , et al.
Transdermal nitroglycerin pad
Patent #: 4336243
Issued on: 06/22/1982
Inventor: Sanvordeker , et al.
Process for producing highly porous thermoplastic films
Patent #: 4350655
Issued on: 09/21/1982
Inventor: Hoge
Porous polyethylene film
Patent #: 4384023
Issued on: 05/17/1983
Inventor: Okamura , et al.
Microporous hollow fiber and process and apparatus for preparing such fiber
Patent #: 4405688
Issued on: 09/20/1983
Inventor: Lowery , et al.
High tenacity, high modulus polyethylene and polypropylene fibers and intermediates therefore
Patent #: 4413110
Issued on: 11/01/1983
Inventor: Kavesh , et al.
Process for the preparation of filaments of high tensile strength and modulus
Patent #: 4422993
Issued on: 12/27/1983
Inventor: Smith , et al.
Filaments of high tensile strength and modulus
Patent #: 4430383
Issued on: 02/07/1984
Inventor: Smith , et al.
Porous tubing
Patent #: 4434250
Issued on: 02/28/1984
Inventor: Kessler
Novel porous fabric
Patent #: 4438167
Issued on: 03/20/1984
Inventor: Schwarz
Elastomeric waterproof laminate
Patent #: 4443511
Issued on: 04/17/1984
Inventor: Worden , et al.
Silica coated absorbent fibers
Patent #: 4469746
Issued on: 09/04/1984
Inventor: Weisman , et al.
Process for producing porous film or sheet
Patent #: 4472328
Issued on: 09/18/1984
Inventor: Sugimoto , et al.
Process for producing a high strength porous polytetrafluoroethylene product having a coarse microstructure
Patent #: 4482516
Issued on: 11/13/1984
Inventor: Bowman , et al.
0.1 Micron rated polypropylene membrane and method for its preparation
Patent #: 4490431
Issued on: 12/25/1984
Inventor: Vitzthum , et al.
Surfactant treated polyolefinic microporous materials capable of multiple re-wetting with aqueous solutions
Patent #: 4501793
Issued on: 02/26/1985
Inventor: Sarada
Composite body for long-term delivery of effective substances
Patent #: 4525340
Issued on: 06/25/1985
Inventor: Lange , et al.
Microporous sheet material, method of making and articles made therewith
Patent #: 4539256
Issued on: 09/03/1985
Inventor: Shipman
Process for producing stretched articles of ultrahigh-molecular-weight polyethylene
Patent #: 4545950
Issued on: 10/08/1985
Inventor: Motooka , et al.
Producing high tenacity, high modulus crystalline article such as fiber or film
Patent #: 4551296
Issued on: 11/05/1985
Inventor: Kavesh , et al.
Methods for the preparation of porous fibers and membranes
Patent #: 4564488
Issued on: 01/14/1986
Inventor: Gerlach , et al.
Process for preparing an air-permeable film
Patent #: 4585604
Issued on: 04/29/1986
Inventor: Okuyama , et al.
Collagen membranes for medical use
Patent #: 4600533
Issued on: 07/15/1986
Inventor: Chu
Thermoplastic resin porous membrane having an increased strength factor
Patent #: 4613441
Issued on: 09/23/1986
Inventor: Kohno , et al.
Waterproof, moisture-vapor permeable sheet material and method of making the same
Patent #: 4613544
Issued on: 09/23/1986
Inventor: Burleigh
Porous sheet
Patent #: 4613643
Issued on: 09/23/1986
Inventor: Nakamura , et al.
Polyethylene microporous membrane and a process for the production of the same
Patent #: 4620955
Issued on: 11/04/1986
Inventor: Kono , et al.
Process for preparing microporous polyethylene film by uniaxial cold and hot stretching
Patent #: 4620956
Issued on: 11/04/1986
Inventor: Hamer
Disposable diaper
Patent #: 4626252
Issued on: 12/02/1986
Inventor: Nishizawa , et al.
Hollow fiber Patent #: 4670341
Issued on: 06/02/1987
Inventor: Lundsager
September 15, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
