Schrenk, Walter J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schrenk, Walter J..The latest application filed is for "polymeric interference film".
Company Profile
0.44.1
- Schrenk, Walter J. - Midland MI
- Schrenk; Walter J. - Bay City MI
Patent Activity
| Patent | Date |
|---|---|
| Polymeric interference film App 20010046086 - Wheatley, John A. ; et al. | 2001-11-29 |
| Method and apparatus for producing multilayer plastic articles Grant 5,628,950 - Schrenk , et al. * May 13, 1 | 1997-05-13 |
| Birefringent interference polarizer Grant 5,612,820 - Schrenk , et al. March 18, 1 | 1997-03-18 |
| Formable reflective multilayer body Grant 5,568,316 - Schrenk , et al. October 22, 1 | 1996-10-22 |
| All-polymeric ultraviolet light reflecting film Grant 5,540,978 - Schrenk July 30, 1 | 1996-07-30 |
| Method for producing blow molded multilayer plastic articles Grant 5,540,878 - Schrenk , et al. July 30, 1 | 1996-07-30 |
| Birefringent interference polarizer Grant 5,486,949 - Schrenk , et al. January 23, 1 | 1996-01-23 |
| Formable reflective multilayer body Grant 5,448,404 - Schrenk , et al. September 5, 1 | 1995-09-05 |
| Layer thickness gradient control in multilayer polymeric bodies Grant 5,389,324 - Lewis , et al. February 14, 1 | 1995-02-14 |
| Two component infrared reflecting film Grant 5,360,659 - Arends , et al. November 1, 1 | 1994-11-01 |
| Method of producing a lamellar polymeric body Grant 5,316,703 - Schrenk May 31, 1 | 1994-05-31 |
| Infrared reflective optical interference film Grant RE34,605 - Schrenk , et al. May 10, 1 | 1994-05-10 |
| Optically dissimilar composition for polymeric reflective bodies Grant 5,278,694 - Wheatley , et al. January 11, 1 | 1994-01-11 |
| Coextrusion of multilayer articles using protective boundary layers and apparatus therefor Grant 5,269,995 - Ramanathan , et al. December 14, 1 | 1993-12-14 |
| Multicomponent, multilayer polymeric reflective bodies Grant 5,262,894 - Wheatley , et al. November 16, 1 | 1993-11-16 |
| Multilayer polymeric reflective bodies for decorative and security applications Grant 5,234,729 - Wheatley , et al. August 10, 1 | 1993-08-10 |
| Visibly transparent infrared reflecting film with color masking Grant 5,233,465 - Wheatley , et al. August 3, 1 | 1993-08-03 |
| Lamellar polymeric body Grant 5,217,794 - Schrenk June 8, 1 | 1993-06-08 |
| Method for producing injection molded multilayer articles Grant 5,202,074 - Schrenk , et al. April 13, 1 | 1993-04-13 |
| Multilayer film for tamper indication by use of optical interference reflection Grant 5,149,578 - Wheatley , et al. * September 22, 1 | 1992-09-22 |
| Polymeric reflective bodies with multiple layer types Grant 5,126,880 - Wheatley , et al. June 30, 1 | 1992-06-30 |
| Relective polymeric body Grant 5,122,905 - Wheatley , et al. June 16, 1 | 1992-06-16 |
| Infrared reflective optical interference film Grant 5,103,337 - Schrenk , et al. April 7, 1 | 1992-04-07 |
| Interfacial surface generator Grant 5,094,788 - Schrenk , et al. March 10, 1 | 1992-03-10 |
| Multilayer film indicator for determining the integrity or authenticity of an item and process for using same Grant 5,095,210 - Wheatley , et al. March 10, 1 | 1992-03-10 |
| Methods and apparatus for generating interfacial surfaces Grant 5,094,793 - Schrenk , et al. March 10, 1 | 1992-03-10 |
| Elastomeric optical interference films Grant 4,937,134 - Schrenk , et al. June 26, 1 | 1990-06-26 |
| Method of making a hollow light pipe Grant 4,806,289 - Laursen , et al. February 21, 1 | 1989-02-21 |
| Method of preparing blown thermoplastic articles having multiaxial orientation Grant 4,122,138 - Cleereman , et al. October 24, 1 | 1978-10-24 |
| Multilayer coextrusion process for producing selective reflectivity Grant 4,094,947 - Alfrey, Jr. , et al. June 13, 1 | 1978-06-13 |
| Scrapless forming of plastic articles Grant 4,005,967 - Ayres , et al. February 1, 1 | 1977-02-01 |
| Biaxially oriented thermoplastic container with or without molded tip periphery Grant 3,995,763 - Ayres , et al. December 7, 1 | 1976-12-07 |
| Container for food products and method for making same Grant 3,977,153 - Schrenk August 31, 1 | 1976-08-31 |
| Scrapless forming of plastic articles Grant 3,947,204 - Ayres , et al. March 30, 1 | 1976-03-30 |
| Coextrusion Apparatus Grant 3,924,990 - Schrenk December 9, 1 | 1975-12-09 |
| Apparatus for multilayer coextrusion of sheet or film Grant 3,884,606 - Schrenk May 20, 1 | 1975-05-20 |
| Multilayer Plastic Articles Grant 3,801,429 - Schrenk , et al. April 2, 1 | 1974-04-02 |
| Apparatus For The Preparation Of Multilayer Plastic Articles Grant 3,759,647 - Schrenk , et al. September 18, 1 | 1973-09-18 |
| Apparatus For The Production Of Net-like Structures Grant 3,746,485 - Schrenk July 17, 1 | 1973-07-17 |
| Apparatus For Coextrusion Of Multilayer Sheet Or Films Grant 3,743,459 - Schrenk , et al. July 3, 1 | 1973-07-03 |
| Apparatus For The Formation Of Composite Plastic Bodies Grant 3,737,263 - Schrenk , et al. June 5, 1 | 1973-06-05 |
| Method For The Formation Of Composite Plastic Bodies Grant 3,716,612 - Schrenk , et al. February 13, 1 | 1973-02-13 |
| Highly Reflective Thermoplastic Bodies For Infrared, Visible Or Ultraviolet Light Grant 3,711,176 - Alfrey, Jr. , et al. January 16, 1 | 1973-01-16 |
| Apparatus For The Controlled Extrusion Of Multi-component Synthetic Resinous Bodies Grant 3,687,589 - Schrenk August 29, 1 | 1972-08-29 |
| A Laminate Of A Barrier Layer Enclosed In Rigid High Density Polyolefin Layers Grant 3,673,050 - Newman, Jr. , et al. June 27, 1 | 1972-06-27 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 