Manufacturers:
Are you a manufacturer of …
– turbines?
– internal combustion engines (ICEs)?
– trucks, buses, trains, ships?
– mobile EV Chargers, or GPUs?
– products needing fuel efficient on board electricity generation?

Would you like to discuss porous turbines?
Please find my contact details below.

General information:

E-mail:info@frolundatech.com
Phone number:+46 736589274
Linkedin profile
(Andreas Clark,
CEO & owner):
https://www.linkedin.com/in/andreas-clark-27845029/
About
Frölunda Tech Holding AB
https://www.ratsit.se/5591930986-Frolunda_Tech_Holding_AB

Patent application

(porous turbines):

DESCRIPTION:DOCUMENT NUMBER:FILING DATE:
Priority application: EP25153944 2025-01-24
PCT application: WO2025262339 2025-10-16
WO2025262339
available as/at:
Link:
Full document (PDF)https://lnkd.in/dZ4fe2gH
WIPOhttps://lnkd.in/dZx95e5m
Espacenethttps://lnkd.in/dy9VBu8b
Google Patentshttps://lnkd.in/dyFVK_bB

Timeline:

EVENT:DATE:
Priority application (EP25153944)2025-01-24
PCT application (WO2025262339)2025-10-16
Sufficient time for writing national patent applications without needing rush-work.
2027-04-24 (approximately)
Deadline (national patent applications)2027-07-24 (approximately)
One of the following two will have happened:
(1) National patent applications have been filed.
(2) The patent application has expired.
2027-07-25 (approximately)

Comparison of scenarios (hypothetization):

WIKIPEDIA (cross-licensing):
https://en.wikipedia.org/wiki/Cross-licensing
No further patent applications on porous turbines are filed by anyoneNew patent applications become filed by others
Patent expires (2027-07-25)(1) No patent license sales (revenues)
(2) No cross-licensing necessary
(1) No patent license sales (revenues)
(2) No cross-licensing possible
National patents become granted(1) Patent license sales (revenues)
(2) No cross-licensing necessary
(1) Patent license sales (revenues)
(2) Cross-licensing possible

Difference between

patent application &

previous technolgy

Previous technology
(GB408690A, steam turbine):
– Steam flows one single loop around a rotor.

https://worldwide.espacenet.com/patent/search/family/010282533/publication/GB408690A?q=pn%3DGB408690A
New technology
(WO2025262339, steam turbine):
– Steam flows two, or more loops around a rotor.

https://worldwide.espacenet.com/patent/search/family/094382820/publication/WO2025262339A1?q=pn%3DWO2025262339A1

Why does the number of loops matter?

(1) More loops mean …
(2) a longer steam expansion distance …
… through the porous metal.

This means the following can be handled…
(3) … higher pressure drops (ΔP).
(4) … higher temperature drops (ΔT).

This means this turbine type (porous turbine)…
(5) … can compete with existing turbine types.

This means this turbine type (porous turbine) in some cases will be…
(6) … less good than existing turbine types.
(7) … better than existing turbine types.

Questions for the next step:
– In which products will porous turbines perform better?
– Will customers soon demand these products?
– Which manufacturer will fill this demand?

@ Manufacturers:
Which manufacturer will be the fastest at identifying the products, where this new technology performs better (and adds more customer value)?
– You?
– Your competitors?

Quick description of uses for

porous turbines:

– Steam turbines.
– Conversion of waste heat into electricity.
– Useful for vehicles and electricity generation.

Value added

(generalized description):

VALUE ADDED TO CUSTOMER:
(1) Improved fuel efficiency of:
… ICEs (internal combustion engines),
… gas turbines.

(2) Autonomy away from charging points.

(3) Other values (see examples further down).

Patent licenses:

Patent licenses:
(1) Patents are valid during 20 years.
(2) Do you believe porous turbines will add customer value during these 20 years?
(3) If “yes”, then part of this value could generate patent license revenues.
(4) If “yes”, then these patent license revenues would motivate investments.

Deadline for filing national patent applications:
– 2027-04-24 (this date avoids rush work)
– 2027-07-24 (formal deadline)

Value added:

(per specific product):

HIGHLY ATTRACTIVE USES OF POROUS TURBINES
(for generating electricity on board plug-in electric vehicles):
Application:Comments:
Large ships– Improved fuel efficiency.
Trucks (mobile emergency recharging of battery electric vehicles/trucks/buses/cars).– Fuel efficient onboard electricity generation.
– Autonomy beyond charging point network.
Heavy trucks, long-distance trucks.Fuel efficient onboard electricity generation from locally available fuels.
Allows truck to recharge out of range from regular charging points.
ATTRACTIVE USES OF POROUS TURBINES
(for generating electricity on board plug-in electric vehicles):
Application:Comments:
Coaches and buses (long distance).Fuel efficient onboard electricity generation from locally available fuels.
Allows truck to recharge out of range from regular charging points.
Non-electrified trains.Improved fuel efficiency.
POSSIBLE USES OF POROUS TURBINES
(for generating electricity on board plug-in electric vehicles):
Application:
Comments:
Trucks and buses (predetermined routes).On board electricity generation –>
–> Decreased battery size.
– Small electricity generating aggregates (24/7 use).
(E.g. diesel aggregates)
Compact.
OTHER USES OF POROUS TURBINES
(for generating electricity)
(for generating electricity on board plug-in electric vehicles):
Application:Comments:
Thermal power plants.Possible once capital costs and operating costs have been perfected.
Rental cars (guaranteed range).Guaranteed range outside charging point networks.
Taxis (guaranteed range).Taxi always available – also when battery discharged.
Guaranteed range outside charging point networks.

Image & video showing how porous turbines work

Description:Link:
VIDEO (OVERSIMPLIFIED, 1 LOOP):
Air flowing through fibrous layer on rotating cylinder
https://lnkd.in/g9PWmbGZ
DESCRIPTIVE IMAGE – COMPRESSED AIR FLOWING THROUGH POROUS ROTOR:
US4669951A (1983) – Air operated motor
https://patentimages.storage.googleapis.com/70/37/33/972d8da2787e2f/US4669951-drawings-page-2.png

Advertisement (all-images-in-one):

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JPGhttps://lnkd.in/dzkXZqMg
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(image of cylinder):

File Format:Download Link:
JPGhttps://lnkd.in/d5MwXg6m
PDFhttps://lnkd.in/dqKfTVPJ

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(use in rankine cycles):

File Format:Download Link:
JPGhttps://lnkd.in/dtvjVrsQ
PDFhttps://lnkd.in/dftywmtu

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(use in rankine cycles):

File Format:Download Link:
JPGhttps://lnkd.in/dtvjVrsQ
PDFhttps://lnkd.in/dftywmtu