Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10350123 | Lifting sling device | Cho Kee Wong | 2019-07-16 |
| 9994686 | Biodegradable film and laminate | Cho Kee Wong | 2018-06-12 |
| 6479595 | Plasma treatment of polymer materials for increased dyeability | Dong Zhang, Paul Spence, Qin Sun | 2002-11-12 |
| 6197709 | Meltblown composites and uses thereof | Peter P. Tsai, Charles B. Hassenboehler, Jr., Gretta Heismeyer | 2001-03-06 |
| 6153059 | Composite of pleated and nonwoven webs, method and apparatus for the electrostatic charging of same | Oldrich Jirsak, Peter P. Tsai | 2000-11-28 |
| 6090469 | Mechanically interlocked and thermally fused staple fiber pleated and non-pleated webs | Oldrich Jirsak, Peter P. Tsai | 2000-07-18 |
| 6030906 | Post-treatment and consolidation of laminated nowwoven fiber webs | Charles B. Hassenboehler, Jr. | 2000-02-29 |
| 5955174 | Composite of pleated and nonwoven webs | Oldrich Jirsak, Peter P. Tsai | 1999-09-21 |
| 5871836 | Composite pleated fibrous structures containing split film fibers | Jan Schultink, Bas Schultink | 1999-02-16 |
| 5753736 | Dimensionally stable fibers and non-woven webs | Gajanan Bhat, Vasanthakumar Narayanan | 1998-05-19 |
| 5747394 | Post-treatment of laminated nonwoven cellulosic fiber webs | Charles B. Hassenboehler, Jr. | 1998-05-05 |
| 5686050 | Method and apparatus for the electrostatic charging of a web or film | Peter P. Tsai | 1997-11-11 |
| 5683794 | Fibrous web having cellulosic fibers | Kermit E. Duckett, Venkataramanan Balasubramanian | 1997-11-04 |
| 5599366 | Post-treatment of laminated nonwoven cellulosic fiber webs | Charles B. Hassenboehler, Jr. | 1997-02-04 |
| 5592357 | Electrostatic charging apparatus and method | Mark S. Rader, Igor Alexeff, Peter P. Tsai | 1997-01-07 |
| RE35206 | Post-treatment of nonwoven webs | Charles B. Hassenboehler, Jr. | 1996-04-16 |
| 5470663 | Meltblowing of ethylene and fluorinated ethylene copolymers | Ahamad Khan | 1995-11-28 |
| 5443606 | Post-treatment of laminated nonwoven cellulosic fiber webs | Charles B. Hassenboehler, Jr. | 1995-08-22 |
| 5441550 | Post-treatment of laminated nonwoven cellulosic fiber webs | Charles B. Hassenboehler, Jr. | 1995-08-15 |
| 5403453 | Method and apparatus for glow discharge plasma treatment of polymer materials at atmospheric pressure | John R. Roth, Peter P. Tsai, Chaoya Liu, Paul Spence | 1995-04-04 |
| 5401458 | Meltblowing of ethylene and fluorinated ethylene copolymers | Ahamad Khan | 1995-03-28 |
| 5401446 | Method and apparatus for the electrostatic charging of a web or film | Peter P. Tsai | 1995-03-28 |
| 5244482 | Post-treatment of nonwoven webs | Charles B. Hassenboehler, Jr. | 1993-09-14 |
| 4904174 | Apparatus for electrically charging meltblown webs (B-001) | Peter Moosmayer, Jean-Pierre Budliger, Erwin Zurcher | 1990-02-27 |
| 4382378 | Method for testing filtration efficiency | Wayne T. Davis | 1983-05-10 |