Alex Keller has been granted 30 US patents while listed as an inventor at Ferag Ag . The first was granted in 1981 and the most recent in November 2025. Alex Keller ranks #121,623 of 4,157,543 US inventors in our database (top 2.9%). Patent records list Alex Keller in Manhasset, NY, US.
Patents per Year Patents granted per year, 1981 to 2023 Bar chart with a peak of 2 patents in 1981. peak 2 1981: 2 patents 1981 1982: 1 patents 1983: 2 patents 1983 1984: 2 patents 1985: 2 patents 1985 1988: 1 patents 1997: 1 patents 1997 1999: 1 patents 2001: 2 patents 2001 2003: 2 patents 2010: 1 patents 2010 2012: 1 patents 2013: 1 patents 2013 2015: 1 patents 2016: 1 patents 2016 2017: 1 patents 2019: 2 patents 2019 2020: 2 patents 2021: 1 patents 2021 2023: 2 patents 2023 Issued Patents All Time
Showing 1–25 of 30 patents
Patent # Title Co-Inventors Date
12465345 Retractor systems with closed loop control Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2025-11-11
11737741 Retractor systems with sensors Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2023-08-29
11672519 Retractor systems with closed loop control Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2023-06-13
11179074 Probe for monitoring wet or moist environments Robert E. Lash , Larry C. Heaton, II 2021-11-23
10835227 Retractor systems with sensors Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2020-11-17
10675013 Retractor systems with closed loop control Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2020-06-09
10358314 Method and device for creating packs of printed products — 2019-07-23
10266290 Method for producing collections from a plurality of different printed products and device for performing the method — 2019-04-23
9636096 Retractor systems with closed loop control Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2017-05-02
9486196 Retractor systems with sensors Larry C. Heaton, II , Robert E. Lash , Jimmy Jian-min Mao 2016-11-08
9051142 Apparatus for separating individual flat, bendable objects from the underside of a stack of such objects — 2015-06-09
8376348 Device and method for the transfer of flexible, elongate objects — 2013-02-19
8240458 Device and method for the transfer of flexible flat articles — 2012-08-14
7758043 Apparatus for the timed deflection of planar objects — 2010-07-20
6666447 Method and device for transporting flat products away — 2003-12-23
6554268 Apparatus for transporting flexible, sheet-like products Roberto Fenile 2003-04-29
6196538 Apparatus for processing flexible, sheet-like products Hans-Ulrich Stauber 2001-03-06
6182960 Apparatus for processing flexible, sheet-like products Roberto Fenile 2001-02-06
6003854 Apparatus for individually separating stacked printed products — 1999-12-21
5664770 Apparatus for delivering printed products to a further-processing location — 1997-09-09
4750728 Apparatus for loading a processing means for processing flexible flat products, especially printed products — 1988-06-14
4510647 Method and apparatus for controlling fiber density Akiva Pinto 1985-04-16
4507826 Method and apparatus for opening fiber bales Akiva Pinto 1985-04-02
4476611 Fiber feeding apparatus with fiber leveling means Akiva Pinto 1984-10-16
4448272 Method and apparatus for feeding, weighing and releasing fiber Joseph R. Williams , Erhard A. Fechner , Akiva Pinto , James A. King , Charles Crawford +1 more 1984-05-15