| Patent | Date |
|---|
Acrylic acid polymers neutralized with sodium and calcium ions and having a narrow molecular weight distribution
Grant 10,968,295 - Leifeld , et al. April 6, 2 | 2021-04-06 |
Method For Producing Wood Fiberboards
App 20210046668 - Leifeld; Ferdinand ; et al. | 2021-02-18 |
Method for producing acrylic acid polymers
Grant 10,875,944 - Barth , et al. December 29, 2 | 2020-12-29 |
Method for Producing Acrylic Acid Polymers
App 20200299426 - Barth; Johannes ; et al. | 2020-09-24 |
Method Of Increasing The Throughput And/or Decreasing Energy Usage Of A Pulping Process
App 20200123707 - Randolph; John Andrew ; et al. | 2020-04-23 |
Acrylic Acid Polymers Neutralized With Sodium And Calcium Ions And Having A Narrow Molecular Weight Distribution
App 20190276568 - Leifeld; Ferdinand ; et al. | 2019-09-12 |
Method for processing cellulose-containing biomass
Grant 10,337,144 - Rittig , et al. | 2019-07-02 |
Method for processing cellulose-containing biomass
Grant 10,316,106 - Rittig , et al. | 2019-06-11 |
Method For Processing Cellulose-containing Biomass
App 20180051414 - RITTIG; Frank ; et al. | 2018-02-22 |
Method For Processing Cellulose-containing Biomass
App 20180044438 - RITTIG; Frank ; et al. | 2018-02-15 |
Device for increasing the specific weight of fiber material in a carding machine
App 20010039695 - Leifeld, Ferdinand ; et al. | 2001-11-15 |
Apparatus for measuring the thickness and/or irregularities of a running sliver
Grant 6,223,609 - Leifeld , et al. May 1, 2 | 2001-05-01 |
Feed tray assembly for advancing fiber material in a fiber processing machine
Grant 6,216,318 - Leifeld April 17, 2 | 2001-04-17 |
Apparatus for making a fiber batt
Grant 5,974,631 - Leifeld November 2, 1 | 1999-11-02 |
Apparatus for separating foreign bodies from a fiber tuft stream
Grant 5,791,489 - Leifeld August 11, 1 | 1998-08-11 |
Apparatus for treating fiber and producing a fiber lap therefrom
Grant 5,737,806 - Leifeld , et al. April 14, 1 | 1998-04-14 |
Fiber tuft feeder for a fiber processing textile machine
Grant 5,586,365 - Leifeld , et al. December 24, 1 | 1996-12-24 |
Fiber web supporting device in a carding machine
Grant 5,522,119 - Leifeld , et al. June 4, 1 | 1996-06-04 |
Apparatus for measuring the sliver density at a tapering sliver guide in a drafting frame
Grant 5,461,757 - Leifeld October 31, 1 | 1995-10-31 |
Drive system for a carding machine including doffer zone draft setting
Grant 5,398,380 - Leifeld March 21, 1 | 1995-03-21 |
Location determining device for a travelling bale opener
Grant 5,285,552 - Leifeld , et al. February 15, 1 | 1994-02-15 |
Apparatus for making a lap from textile fibers
Grant 5,205,018 - Leifeld , et al. April 27, 1 | 1993-04-27 |
Apparatus for separating metal bodies from a textile fiber stream
Grant 5,205,019 - Schnlichter , et al. April 27, 1 | 1993-04-27 |
Sliver drafting apparatus with rpm sensing and adjusting
Grant 5,161,284 - Leifeld November 10, 1 | 1992-11-10 |
Opening apparatus for removing fiber from compressed fiber bales
Grant 5,090,090 - Temburg , et al. February 25, 1 | 1992-02-25 |
Method of opening fiber bales
Grant 5,090,864 - Leifeld February 25, 1 | 1992-02-25 |
Process for electroplating utilizing disubstituted ethane sulfonic compounds as electroplating auxiliaries and electroplating auxiliaries containing same
Grant 5,024,736 - Clauss , et al. June 18, 1 | 1991-06-18 |
Method of and apparatus for blending textile fibers
Grant 4,914,787 - Leifeld , et al. April 10, 1 | 1990-04-10 |
Apparatus for detecting foreign bodies in a fiber tuft mass
Grant 4,839,943 - Leifeld June 20, 1 | 1989-06-20 |
Method and apparatus for feeding a plurality of textile fiber processing machines
Grant 4,779,311 - Leifeld October 25, 1 | 1988-10-25 |
Method and apparatus for feeding a fiber tuft opener or cleaner
Grant 4,709,451 - Leifeld December 1, 1 | 1987-12-01 |
Apparatus for detecting foreign bodies, such as pieces of metal or the like, in textile fiber bales
Grant 4,707,887 - Leifeld , et al. November 24, 1 | 1987-11-24 |
Apparatus for pneumatically feeding a plurality of carding machines
Grant 4,701,981 - Leifeld October 27, 1 | 1987-10-27 |
Method and apparatus for opening and cleaning fiber material
Grant 4,625,368 - Leifeld December 2, 1 | 1986-12-02 |
Method and apparatus for spraying textile fiber bales
Grant 4,554,708 - Leifeld , et al. November 26, 1 | 1985-11-26 |
Method and apparatus for controlling and regulating machines of a textile fiber processing line
Grant 4,535,511 - Leifeld , et al. August 20, 1 | 1985-08-20 |
Apparatus for regulating fiber quantities supplied to a textile machine
Grant 4,506,413 - Leifeld March 26, 1 | 1985-03-26 |
Apparatus and method for separating debris from textile fiber tufts
Grant 4,344,843 - Leifeld August 17, 1 | 1982-08-17 |
Apparatus for opening textile fiber bales
Grant 4,297,767 - Leifeld November 3, 1 | 1981-11-03 |
Carding element
Grant 4,287,643 - Leifeld September 8, 1 | 1981-09-08 |
Apparatus For Textile Dyeing
Grant 3,731,503 - Appenzeller , et al. May 8, 1 | 1973-05-08 |
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